CN115881001B - Display control method and device of multi-mode display screen and multi-mode display screen - Google Patents

Display control method and device of multi-mode display screen and multi-mode display screen Download PDF

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CN115881001B
CN115881001B CN202211730012.0A CN202211730012A CN115881001B CN 115881001 B CN115881001 B CN 115881001B CN 202211730012 A CN202211730012 A CN 202211730012A CN 115881001 B CN115881001 B CN 115881001B
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display
image
sub
target
display screen
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CN115881001A (en
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龙平芳
毛强军
刘军
顾伟
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Shenzhen Lianchengfa Technology Co ltd
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Shenzhen Lianchengfa Technology Co ltd
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
    • G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/16—Human faces, e.g. facial parts, sketches or expressions
    • G06V40/161—Detection; Localisation; Normalisation
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Computer Hardware Design (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Human Computer Interaction (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

The present invention relates to the field of screen display technologies, and in particular, to a display control method and apparatus for a multi-format display screen, and a multi-format display screen. The method of the invention comprises the following steps: acquiring current combined form and current stage performance information of a multi-form display screen, wherein the combined form at least comprises a folding form and a separating form; acquiring an initial image according to current stage performance information; determining an image display mode according to the current combination form and/or stage performance information; processing the initial display image according to the image display mode to obtain a target image; and controlling the multi-form display screen to display the target image according to the image display mode. The invention can dynamically adjust the image display method of the polymorphic display screen according to the form and performance condition of the stage display screen, thereby improving the performance effect of the stage.

Description

Display control method and device of multi-mode display screen and multi-mode display screen
Technical Field
The present invention relates to the field of screen display technologies, and in particular, to a display control method and apparatus for a multi-format display screen, and a multi-format display screen.
Background
The LED display screen is widely applied to large stage scenes such as concerts and the like. Because many spectators in the concert live, the required display area of the LED display screen is larger, but the display area of the single LED display screen is limited, the requirements of large-scale stage scenes such as the concert can not be met, and the large-area LED display screen is high in cost, large in manufacturing difficulty and difficult to transport. In the prior art, a mode of combining a plurality of LED display screens with smaller areas into an LED display screen with larger area is adopted in the use field. For example, a display screen and a display device in which a plurality of display panels are combined to display are disclosed in patent document CN 113990211B. Although the display area is multiplied after the display screens are spliced together, the display screens are spliced to be in a fixed and static form, and the display mode is single. The large stage scenes such as the concert are required to be rich and flexible in display modes, and the content or the form displayed by the display screen corresponds to the performance content of the concert, so that the display screen in the current spliced form is single in display mode, cannot be matched with the stage performance content, and cannot be suitable for the large stage scenes with rich performance content.
Disclosure of Invention
In view of the above, the embodiments of the present invention provide a display control method and apparatus for a multi-modal display screen, and the multi-modal display screen, which are used for solving the technical problem that the existing spliced display screen has a single display mode and cannot adapt to the situation change of the live stage performance.
The technical scheme adopted by the invention is as follows:
in a first aspect, the present invention provides a display control method for a multi-format display screen, where the multi-format display screen includes a plurality of sub-display screens that can be separated from each other and can be spliced into a sphere after being folded, and the method includes the following steps:
acquiring current combined form and current stage performance information of a multi-form display screen, wherein the combined form at least comprises a folding form and a separating form;
acquiring an initial image according to current stage performance information;
determining an image display mode according to the current combination form and/or stage performance information;
processing the initial display image according to the image display mode to obtain a target image;
and controlling the multi-form display screen to display the target image according to the image display mode.
Preferably, the determining the image display mode according to the current combination form and/or stage performance information further comprises the following steps:
If the current combined form is a folding form, the image display mode is a combined screen display mode, and the combined screen display mode is that a pair of complete images are jointly displayed on the folded sub-display screens;
if the current combined form is a separated form, the image display mode is a split screen display mode or an independent display mode, wherein the split screen display mode is that the separated sub-display screens respectively display part of the original images, and the independent display mode is that at least two sub-display screens display different original images;
preferably, the processing the initial display image according to the image display mode to obtain the target image further includes the following steps:
if the image display mode is a split display mode, the number of sub display screens for split display is obtained;
dividing an original image into a plurality of sub-images according to the number of sub-display screens for split-screen display;
and distributing the sub-images to each sub-display screen as target images of each sub-display screen.
Preferably, the assigning the sub-image to each sub-display screen as the target image of each sub-display screen further includes the steps of:
detecting whether a face image exists in the target image of each sub display screen;
If yes, detecting whether the face image is completely displayed on the currently corresponding sub-display screen;
and if not, adjusting the target image.
Preferably, the adjusting the target image if the face image is incomplete further comprises the following steps:
acquiring the outline of a face image;
judging whether the face image can be completely displayed on a sub display screen according to the outline of the face image;
if yes, selecting one sub display screen from all sub display screens as a target display screen;
and adjusting the target images of each sub-display according to the target display screen and the face images so as to completely display the face images in the target display screen.
Preferably, the adjusting the target image of each sub-display screen according to the target display screen and the face image to completely display the face image in the target display screen further comprises the following steps:
acquiring the current position of a face image on a display screen;
determining the position of the face image on the target display screen as the adjusted position when the face image is completely displayed on the target display screen according to the target display screen and the face image;
determining the pixel position adjustment quantity of the target image of each sub-display screen according to the current position and the adjusted position;
And adjusting the position of each pixel in all the sub-displayed target images according to the pixel position adjustment amount to obtain an adjusted target image.
Preferably, the adjusting the target image of each sub-display screen according to the target display screen and the face image to completely display the face image in the target display screen further comprises the following steps:
determining the position of the face image on the target display screen as a reference position when the face image is completely displayed on the target display screen according to the face image and the target display screen;
projecting an original image onto a virtual display screen in a folding form according to a reference position, so that the position of a face image in the original image is positioned at the reference position on the virtual display screen, wherein the virtual display screen is formed by folding virtual sub-display screens corresponding to all sub-display screens one by one;
and re-dividing the projected image into sub-images which are in one-to-one correspondence with the sub-display screens according to the corresponding relation between the sub-display screens and the virtual sub-display screens, and taking the sub-images as target images after adjustment of the sub-display screens.
Preferably, the scene information includes a position of a target actor in a stage, and the determining an image display mode according to the current combination form and/or stage performance information further includes the steps of:
Acquiring a first preset area in a stage;
judging whether the target actor is in a first preset area according to the current position of the target actor in the stage;
if yes, determining that the image display mode is a tracking display mode;
the processing the initial display image according to the image display mode to obtain the target image further comprises the following steps:
when the image display mode is a tracking display mode, acquiring an included angle between a target actor and a stage preset azimuth;
acquiring an image of a target actor in tracking display from an initial display image;
acquiring an initial display angle of an image of a target actor according to the initial display image;
acquiring a final display angle of an image of the target actor according to an included angle between the target actor and a stage preset azimuth;
determining the pixel rotation quantity of the original image according to the final display angle and the initial display angle;
and performing rotation processing on each pixel of the initial image according to the pixel rotation quantity to obtain a target image.
In a second aspect, the present invention also provides a display control device for a multi-mode display screen, wherein the device includes:
the combined form and scene information acquisition module is used for acquiring the current combined form and the current stage performance information of the polymorphic display screen, and the combined form at least comprises a folding form and a separating form;
The system comprises an initial image acquisition module, a stage performance information acquisition module and a stage performance information acquisition module, wherein the initial image acquisition module is used for acquiring an initial image according to current stage performance information;
the display mode acquisition module is used for determining an image display mode according to the current combination form and/or stage performance information;
the image processing module is used for processing the initial display image according to the image display mode to obtain a target image;
and the display module is used for controlling the multi-form display screen to display the target image according to the image display mode.
In a third aspect, the present invention also provides a multi-modal display screen, comprising: the control circuit is used for controlling the sub-display screen driving mechanism to control the sub-display screens to be mutually separated or folded and then combined into a spherical display screen, and the control circuit comprises at least one processor, at least one memory and computer program instructions stored in the memory, and when the computer program instructions are executed by the processor, the method of the first aspect is realized.
The beneficial effects are that: the display control method and device of the polymorphic display screen and the polymorphic display screen can use different combination forms to match with the live performance for image display, can select a proper image display mode according to the combination form of the display screen and/or stage performance information, and install the image display mode to adjust an initial display image after the image display mode is selected, so that the adjusted image can meet the requirement of the selected image display mode. Through the processing, the invention can enable the image display of the polymorphic display screen to be matched with the live performance scene of the stage performance. The current combined form of the polymorphic display screen and the image display mode are cooperatively matched to enable the image display and the live performance to mutually correspond, so that the overall effect of the stage performance is remarkably improved.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described, and it is within the scope of the present invention to obtain other drawings according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a display control method of a multi-mode display screen according to the present invention;
FIG. 2 is a schematic three-dimensional structure of the multi-modal display of the present invention in a closed configuration;
FIG. 3 is a schematic three-dimensional structure of the multi-modal display of the present invention in a separated configuration;
FIG. 4 is a schematic three-dimensional structure of the multi-modal display of the present invention in a transitional configuration;
FIG. 5 is a flow chart diagram illustrating a method of determining an image display mode based on a display screen morphology in accordance with the present invention;
FIG. 6 is a flow chart of a method of determining an image display mode and processing an original image according to stage performance information according to the present invention;
FIG. 7 is a schematic illustration of the determination of the angular position of a target actor in a stage according to the present invention;
FIG. 8 is a schematic illustration of the determination of the angular position on a display screen of an image of a starring actor prior to adjustment in accordance with the present invention;
FIG. 9 is a flow chart diagram of a method of processing an original image in a separate display mode of the present invention;
FIG. 10 is a flowchart of a method for determining whether an image adjustment is needed according to whether a face is completely displayed according to the present invention;
FIG. 11 is a flow chart of a method of selecting a target display screen according to a face image contour in accordance with the present invention;
FIG. 12 is a flow chart of a method for adjusting an image for fully displaying a face according to the present invention;
FIG. 13 is a flowchart illustrating another method for adjusting an image of a face to be displayed completely according to the present invention;
FIG. 14 is a schematic diagram of a display control device of a multi-mode display screen according to the present invention;
FIG. 15 is a block diagram of the hardware architecture of the multi-modal display of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element. If not conflicting, the embodiments of the present invention and the features of the embodiments may be combined with each other, which are all within the protection scope of the present invention.
Example 1
As shown in fig. 1, the present embodiment provides a display control method of a multi-format display screen, where the multi-format display screen includes a plurality of sub-displays that can be separated from each other and combined into a sphere after being folded, and the method includes the following steps:
s1: acquiring current combined form and current stage performance information of a multi-form display screen, wherein the combined form at least comprises a folding form and a separating form;
the multi-mode display screen in this embodiment is formed by combining a plurality of sub-display screens 2, and different combination modes can be formed between the plurality of sub-display screens 2 through the mutual position change. Referring to fig. 2, for example, when the sub-displays 2 are completely folded together to be spliced into a sphere, the multi-shape display is in a folded shape. Referring to fig. 3, for example, when the sub-displays 2 are separated to a large distance and the distances from the center position when they are closed are the same, the form is a separated form, which is a form in which the displays take on petals like blossom. For example, when the sub-displays 2 are separated to a large pitch and the distances from the center position when they are closed are different, the arrangement is a staggered arrangement. Referring again to fig. 4, the configuration is a transitional configuration, for example, when the sub-displays 2 are at a close distance from each other but have not yet been fully closed. Since the mutual positional relationship between the sub-displays 2 has a plurality of combinations, each positional relationship can form a plurality of combinations, so that the combination of the multi-mode displays is also a plurality. The polymorphic display screen in this embodiment can adopt different forms and different form changes according to the needs of stage performance.
Wherein each sub-display 2 can be seen as being made up of a number of pixel arrangements. The pixels are arranged in the longitudinal direction (u-direction in fig. 2) and the latitudinal direction (w-direction in fig. 2) of the folded sphere, and for convenience of description, the longitudinal direction of the folded sphere is referred to as a column of pixels, and the latitudinal direction of the folded sphere is referred to as a row of pixels. The position of each pixel on the sub-display 22 is fixed, and the position of each pixel on the sub-display 22 can be represented by the row and column in which each pixel is located, for example, the position of a pixel located in the j-th row of the i-th column can be represented as pos (i, j). One pixel can be composed of one or more light-emitting units, and the light-emitting units can adopt LED lamp beads.
S2: acquiring an initial image according to current stage performance information;
the stage performance information at least comprises content of stage performance, progress of stage performance and the like. In order to enrich the stage effect, different images are often displayed on a display screen according to different stage performance contents and different stage performance courses. The images can be selected according to the requirements of stage performance effect, and the unprocessed images selected in advance according to stage performance content and stage performance progress are taken as initial images.
S3: determining an image display mode according to the current combination form and/or stage performance information;
in order to enrich stage effects, the embodiment can provide various image display modes, and in order to be more suitable for the current stage performance content and process, the image display modes can be determined according to stage performance information. Because different combination forms of the display screen are applicable to different image display modes, the image display mode can be determined through the current combination form of the display screen in the step. In order to improve the auxiliary effect of the display screen on the stage performance, the embodiment can also select the combination form of the display screen according to the stage performance information, and select the image display mode capable of assisting in increasing the stage performance effect by combining the combination form of the display screen.
S4: processing the initial display image according to the image display mode to obtain a target image;
the step is to install the image display mode to adjust the initial display image after the image display mode is selected, so that the adjusted image can meet the requirement of the selected image display mode, and cooperate with the current combination form of the display screen, thereby improving the degree of agreement with the stage performance content and the performance progress.
S5: and controlling the multi-form display screen to display the target image according to the image display mode.
The method comprises the steps of controlling a display screen to display a target image according to a predetermined display mode after the target pixel image is obtained.
As an alternative but advantageous embodiment, as shown in fig. 5, S3 is described in this example: determining an image display mode according to the current combination form and/or stage performance information further comprises the following steps:
s31: if the current combined form is a folding form, the image display mode is a combined screen display mode, and the combined screen display mode is that the folded sub-display screens 2 jointly display a complete image;
when all the sub-display screens 2 are folded together, the sub-display screens 2 have almost no gap, and the display screen can be regarded as a complete spherical display screen with 360 degrees, and the display screen in the form is most suitable for displaying a complete image because the displayed image has no sense of rupture.
S32: if the current combined form is a separated form, the image display mode is a split screen display mode or an independent display mode, wherein the split screen display mode is that the separated sub-display screens 2 respectively display part of original images, and the independent display mode is that at least two sub-display screens 2 display different original images;
When the display is in a split configuration, a strong power sensation is likely to occur if a complete image is displayed directly. In this case, a split screen display mode or an independent display mode may be employed. The split-screen display mode means that each sub-display 2 displays only a certain portion of the same image, and different sub-displays 2 display different portions. All the images of the sub-displays 2 do not constitute a complete image. In this mode each sub-display 2 is mainly displaying different objects in the same image. For example, a certain sub-display 2 may display a singer in an image, a certain sub-display 2 may display a dancer in an image, a certain sub-display 2 may display images of different persons or things in an image, such as certain buildings, certain plants, certain animals, etc. taken from the same image. Because the distance between the sub display screens 2 is far in the separated state, the sub display screens 2 can also be used as independent display screens to respectively display different original images, and the display mode is the independent display mode.
In this embodiment, in addition to selecting a suitable image display mode according to the combination of the display screens, a reasonable image display mode may be selected according to stage information acquired in real time. In this regard, in the present embodiment, the scene information includes the position of the target actor in the stage, as shown in fig. 6, the S3: determining an image display mode according to the current combination form and/or stage performance information further comprises the following steps:
S33: acquiring a first preset area in a stage;
in this embodiment, the stage may be divided into different areas in advance, and when the target actor enters into the different areas, different display modes may be adopted, and one of the divided areas is taken as the first preset area. For example, the first predetermined area may be a portion of the stage proximate to the audience.
S34: judging whether the target actor is in a first preset area according to the current position of the target actor in the stage;
the target actor may be a singer of a concert, or may be other personnel, and may be specifically set according to needs, which is not limited herein. The method comprises the steps of obtaining the real-time position of the target actor and judging whether the current position of the target actor is in a first preset area.
S35: if yes, determining that the image display mode is a tracking display mode;
if the current position of the target actor is in the first preset area, a tracking display mode is adopted, namely a display screen displays a real-time image of the target actor, and the angle of the image of the target actor changes along with the position of the target actor on a stage at any time.
For this the S4: processing the initial display image according to the image display mode to obtain a target image further comprises the following steps:
S44: when the image display mode is a tracking display mode, acquiring an included angle between a target actor and a stage preset azimuth;
as shown in fig. 7, the front of the stage may be generally used as the preset azimuth, and any azimuth may be selected as required in other embodiments, which is not limited herein. The included angle between the target actor and the preset direction of the stage is the included angle between the line L1 between the target actor (located at the point B in fig. 7) and the preset direction of the stage (in the direction E in fig. 7), where the preset position may be the center position of the stage (at the point a in fig. 7), or may be the center position of the sphere when the display screen is fully folded, or may be any other position as required.
S45: acquiring an image of a target actor in tracking display from an initial display image;
this step extracts an image of the target actor from the initial display image.
S46: acquiring an initial display angle of an image of a target actor according to the initial display image;
as shown in fig. 8, the initial display angle refers to the angle between the image of the target actor and the preset azimuth when the initial image is displayed on the display screen. The included angle between the image of the target actor and the preset azimuth refers to the included angle between the line L2 between the center position (the position of point D in fig. 8) of the image of the target actor and the stage setting position (the position of point a in fig. 8) and the preset azimuth (the direction E in fig. 8). The method for determining the center position of the target image is the same as the method for determining the center position of the face image.
S47: acquiring a final display angle of an image of the target actor according to an included angle between the target actor and a stage preset azimuth;
s48: determining the pixel rotation quantity of the original image according to the final display angle and the initial display angle; the image rotation angle is calculated according to the final display angle alpha f and the initial display angle alpha p
αt=αp- αf. When the image is rotated by a unit angle in the latitude, the image is moved by m pixels in the latitude direction, and then the pixel rotation amount pixt=m×αt.
S49: and performing rotation processing on each pixel of the initial image according to the pixel rotation quantity to obtain a target image.
Assuming that the position of the pixel in the ith row and the jth row in the initial image is pos (i, j), the position of the image in the target image after the pixel is rotated is pos (i+pixt, j). Where i, j is a positive integer.
After the method is adopted, the display screen in the embodiment can adjust the angle of the image along with the movement of the target actor, so that the angle position of the image of the target actor is consistent with the real-time position of the target actor on the stage, and therefore, a viewer far away from the stage can conveniently know the position of the target actor on the stage through the position of the image of the target actor on the display screen.
As an alternative but advantageous embodiment, as shown in fig. 9, in this example, the step S4: processing the initial display image according to the image display mode to obtain a target image further comprises the following steps:
s41: if the image display mode is a split display mode, the number of the sub display screens 2 for split display is obtained;
for example, in fig. 3, there are 12 sub-displays 2, and then 12 sub-displays may be selected as sub-displays 2 for split display, or 10 sub-displays 2 for split display may be selected. Of course, in other embodiments, other numbers of sub-displays 2 may be selected as sub-displays 2 for split-screen display. For example, the total number of the sub-displays 2 is nc, and the number of the sub-displays 2 for split-screen display is ns, where nc and ns are positive integers, and ns is equal to or less than nc.
S42: dividing an original image into a plurality of sub-images according to the number of sub-display screens 2 for split-screen display;
wherein the number of divided sub-images is larger than the number of sub-displays 2 for split-screen display.
S43: the sub-images are assigned to the respective sub-displays 2 as target images of the respective sub-displays 2.
This step selects the same number of sub-images from among the divided sub-images as the sub-displays 2 for the split-screen display, then allocates a selected unique one of the sub-displays 2 to each sub-display 2 from among the selected sub-images, and displays the sub-images to which it is allocated by the sub-displays 2.
As shown in fig. 10, wherein S43: assigning the sub-images to the respective sub-display screens 2 as target images of the respective sub-display screens 2 further comprises the steps of:
s431: detecting whether a face image exists in the target image of each sub display screen 2;
since the target images allocated to the respective sub-displays 2 are different, there are faces in the target images allocated to the respective sub-displays 2, and there are no faces in the target images allocated to the respective sub-displays 2. The target images of the sub-display screens 2 with the human faces are screened out by detecting the target images of the sub-display screens 2.
S432: if yes, detecting whether the face image is completely displayed on the currently corresponding sub-display screen 2;
because of the limited area that each sub-display 2 can display, it is possible that the face image displayed by some sub-displays 2 is not complete and only a portion of the face is displayed in the previous division and selection of sub-images. If all the face images displayed by the sub-displays 2 are complete, then different target images may be processed.
S433: and if not, adjusting the target image.
Because the distance between the sub-display screens 2 is far when the sub-display screens 2 are separated, if one sub-display screen 2 can not completely display the human face, the display effect that the human face is split can be brought to the audience, and therefore if the human face image displayed by the sub-display screen 2 is detected to be incomplete, the target image needs to be adjusted.
As shown in fig. 11, wherein S433: adjusting the target image if the face image is incomplete further comprises the steps of:
s4331: acquiring the outline of a face image;
s4332: judging whether the face image can be completely displayed on one sub display screen 2 according to the outline of the face image;
there are two cases where the face image is not completely displayed on the sub-display 2 before adjustment. The first case is that although the display area of the sub-display 2 can accommodate the next complete face image, a part of the face image exceeds the sub-display 2 because the position of the face image is not at the position of the maximum width of the sub-display 2 during the previous acquisition of the target image of the sub-display 2. The second case is that the display area required for a complete face image is too large for one sub-display 2, already exceeding the display area available for one sub-display 2. This step determines whether it is the first case.
S4333: if yes, selecting one sub display screen 2 from all sub display screens 2 as a target display screen;
if the determination from the previous step is of the first case, then the image may be adjusted. First, a target display screen is selected as a display screen for displaying the whole face.
S4334: and adjusting the target images of each sub-display according to the target display screen and the face images so as to completely display the face images in the target display screen.
And then, the adjusted target image can realize the complete display of the human face on the selected target display screen through the adjustment of the target image.
As shown in fig. 12, as a way of adjusting the target image to completely display the face, S4334 in the present embodiment is as follows: the step of adjusting the target image of each sub-display screen 2 according to the target display screen and the face image to completely display the face image in the target display screen further comprises the following steps:
s43344: acquiring the current position of a face image on a display screen;
the method comprises the steps of firstly obtaining the position of a face image on a display screen when the face image is displayed according to a target image before adjustment, wherein the current position of the face image on the display screen can be represented by the position of a pixel where the outline of the face image is located.
S43345: determining the position of the face image on the target display screen as the adjusted position when the face image is completely displayed on the target display screen according to the target display screen and the face image;
the step can find the area capable of displaying the face image at the position on the target display screen, then place the face image in the area, and the position of the face image after the placement is the adjusted position.
S43346: determining the pixel position adjustment quantity of the target image of each sub-display screen 2 according to the current position and the adjusted position;
in the implementation, the center position of the current face image can be acquired first, and the face image is set to contain s pixels in total, wherein s is a positive integer. The position coordinate of the x-th pixel of the current face image is PRX (i x ,j x ) Then the center position of the current face image is PC (i C ,j C ) Wherein i is C ＝(i 1 +i 2 +……i s ) S, where i C ＝(j 1 +j 2 +……j s )/s。
Then the central position of the adjusted face image is obtained, and the position coordinate of the x pixel of the adjusted face image is set as PBX (i) x ,j x ) Then the center position of the face image is adjusted to PB (i) b ,j b ) Wherein i is b ＝(i 1 +i 2 +……i s ) S, where i b ＝(j 1 +j 2 +……j s ) And/s. Wherein the adjustment amount of the pixel position (i t ，j t )＝(i b –i c ，i b –i c )。
S43347: and adjusting the position of each pixel in all the sub-displayed target images according to the display position adjustment quantity to obtain an adjusted target image. Assuming that the position of the pixel in the ith row and the jth row of the face image before adjustment is pos (i, j), the position of the image in the target image after the adjustment is performed on the pixel is pos (i+i) t ，j+j t ). Where i, j is a positive integer.
Since the sub-display panels 2 in the separated state can be folded into the display panels in the folded state, the present embodiment also provides another method for completely displaying the face in one sub-display panel 2, as shown in fig. 13, in this embodiment, the step S4334: the step of adjusting the target image of each sub-display screen 2 according to the target display screen and the face image to completely display the face image in the target display screen further comprises the following steps:
s43341: determining the position of the face image on the target display screen as a reference position when the face image is completely displayed on the target display screen according to the face image and the target display screen;
the step can find the area capable of displaying the face image on the target display screen, then place the face image in the area, and the position of the placed face image on the target display screen is the reference position.
S43342: projecting an original image onto a virtual display screen in a folding form according to a reference position, so that the position of a face image in the original image is positioned at the reference position on the virtual display screen, wherein the virtual display screen is formed by folding virtual sub-display screens 2 corresponding to all sub-display screens 2 one by one;
The computer program firstly virtually creates all the sub-display screens 2 according to the shape and the size of the sub-display screens 2, and then folds the virtual sub-display screens 2 in a completely folded state to form a virtual display screen in which the virtual display screen is formed by folding the separated display screens together by the computer program.
Each sub-display 2 has a virtual sub-display 2 corresponding to it, and the virtual sub-display 2 corresponding to the second target display is used as the virtual target display. Each pixel of the respective virtual sub-display 2 also corresponds to each pixel of the sub-display 2. The reference position on the virtual target display screen is the pixel position corresponding to the reference position on the corresponding target display screen. The original image is then projected (displayed) onto a virtual display screen in a closed configuration. And when the virtual target display screen is projected, the position of the face image in the projected original image is just positioned at the reference position of the virtual target display screen.
S43343: and re-dividing the projected image into sub-images corresponding to the sub-display screens 2 one by one according to the corresponding relation between the sub-display screens 2 and the virtual sub-display screen 2, and taking the sub-images as target images after adjustment of the sub-display screens 2.
After the projection, each virtual sub-display screen 2 displays a part of the original image, and in this step, the part of the original image displayed by each virtual sub-display screen 2 is used as the adjusted target image of the corresponding sub-display screen 2.
Because the sub-display driving device may have mechanical errors, such as uneven guide rails, when the multi-form display is in a transitional form, the sub-displays may have offset in the longitudinal direction, and at this time, because the sub-displays are relatively closely spaced, a visual effect that the parts of the whole image are obviously staggered is caused to the audience. In this embodiment, the determining the image display mode according to the current combination form and/or stage performance information further includes the following steps:
if the current combined form is a transitional form, the image display mode is a transitional display mode, and the combined screen display mode is a sub-display screen which is not completely folded to jointly display a complete image;
the processing the initial display image according to the image display mode to obtain the target image further comprises the following steps:
correspondingly dividing the original image to each sub-display screen;
the original image is completely divided according to the number of the sub-display screens, each sub-display screen is divided to obtain a sub-original image, and all the sub-original images can form a complete original image.
The method comprises the steps of obtaining an original image obtained by dividing each sub-display screen as a sub-original image;
acquiring the deviation amount of images between adjacent sub-display screens;
the deviation amount of the image refers to how many pixels of sub-original images corresponding to two adjacent sub-display screens are staggered in the longitudinal direction of the multi-form display screen compared with the ideal situation without mechanical error. The height of each position of the guide rail can be measured in advance, and the deviation amount of the image can be calculated according to the height of the guide rail where the sub display screen is currently positioned. Let the height of the current rail be h higher than the ideal height, and the size of one pixel be pc, the deviation amount of the image be h/pc.
Acquiring the maximum allowable offset of the image; the maximum offset is the maximum offset value that is not perceived by the viewer after the pixels of the image portion are offset.
Determining the column number TN of the pixels subjected to deviation adjustment according to the deviation amount and the maximum deviation amount;
the present embodiment spreads the amount of deviation to a plurality of columns of pixels, but the amount of deviation allocated to each column cannot be larger than the maximum amount of deviation, so the larger the number of columns TN of pixels subjected to deviation adjustment, the smaller the amount of deviation allocated to each column of pixels. In this step, the number of columns TN of the pixels subjected to the offset adjustment is only required to be small enough so that the larger the number of columns TN of the pixels subjected to the offset adjustment is, the smaller the offset amount allocated to each column of pixels is.
Selecting TN column pixels from the sub-original image as target adjustment pixel columns according to the column numbers TN of pixels subjected to deviation adjustment; TN column pixels may be selected as the target adjustment pixel column from each column pixel between the intermediate position of the sub-display screen in the latitudinal direction to the edge of the sub-display screen.
Acquiring a compensation amount according to the deviation amount; wherein the compensation amount is the opposite number of the deviation amount.
Determining the pixel offset of each column of target adjustment pixel columns according to the compensation quantity and the maximum offset;
wherein the sum of the pixel offsets of all the target adjustment pixel columns is the compensation amount. If the pixel offset of a column of target adjustment pixels is F, the column of pixels is shifted by F pixels in the longitudinal direction as a whole, if the pixel offset F is positive, the column of pixels is shifted upward, and if the pixel offset F is negative, the column of pixels is shifted downward.
And sequentially carrying out offset processing on each column of pixels from the central position of the sub display screen to the edge position of the sub display screen according to the pixel offset of each column of target adjustment pixel column to obtain sub target images, wherein all the sub target images form a target image. This step performs the offset processing in the order described above. The pixel column near the center of the sub display screen is set as the front pixel column, and the pixel column far from the center of the sub display screen is set as the rear pixel column. If the currently processed pixel column is the target adjustment pixel column, the pixel column before the target adjustment pixel column is kept unchanged, and the target pixel column and the pixel in the rear pixel in the target pixel are moved by the pixel offset corresponding to the target pixel column along the longitudinal direction. If the currently processed pixel is not the target adjustment pixel column, then jumping to the next pixel column later.
By the image processing, the image dislocation caused by mechanical errors can be eliminated, and the partial parts of the sub-target images are slightly offset, so that the offset does not exceed the maximum offset, and the adjustment of the images can not be perceived by a viewer while the image dislocation is eliminated.
Example 2
Referring to fig. 14, the present embodiment provides a display control device of a multi-mode display screen, the device includes:
the combined form and scene information acquisition module is used for acquiring the current combined form and the current stage performance information of the polymorphic display screen, and the combined form at least comprises a folding form and a separating form;
the system comprises an initial image acquisition module, a stage performance information acquisition module and a stage performance information acquisition module, wherein the initial image acquisition module is used for acquiring an initial image according to current stage performance information;
the display mode acquisition module is used for determining an image display mode according to the current combination form and/or stage performance information;
the image processing module is used for processing the initial display image according to the image display mode to obtain a target image;
and the display module is used for controlling the multi-form display screen to display the target image according to the image display mode.
The image processing module further includes:
the sub display screen quantity acquisition sub module is used for acquiring the quantity of sub display screens for split display if the image display mode is a split display mode;
the original image segmentation submodule is used for segmenting an original image into a plurality of sub-images according to the number of sub-display screens used for split-screen display;
and the sub-image distribution sub-module is used for distributing the sub-images to each sub-display screen to serve as target images of each sub-display screen.
Example 3
In addition, the display control method of the multi-format display screen according to the foregoing embodiment of the present invention described in connection with fig. 15 may be implemented by the multi-format display screen according to the present embodiment. Fig. 15 shows a schematic hardware structure of a multi-mode display screen according to an embodiment of the present invention.
The multi-mode display screen of this embodiment includes a plurality of sub-display screens 2, a sub-display screen driving mechanism 405 and a control circuit, where the control circuit is electrically connected with the sub-display screen driving mechanism 405 and the sub-display screen 2 respectively, and the control circuit is used to control the sub-display screen driving mechanism 405 to control the sub-display screens 2 to be separated or folded from each other and then combined into a sphere, and the control circuit includes at least one processor 401, at least one memory 402 and computer program instructions stored in the memory. The driving mechanism comprises a linear motor and a guide rail, wherein a sliding block of the linear motor moves along the guide rail, and the sliding block is connected with the bottom of the sub display screen 2.
In particular, the processor may be a Central Processing Unit (CPU), or an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or may be configured as one or more integrated circuits that implement embodiments of the present invention.
Memory 402 may include mass storage for data or instructions. By way of example, and not limitation, memory 402 may comprise a Hard Disk Drive (HDD), floppy Disk Drive, flash memory, optical Disk, magneto-optical Disk, magnetic tape, or universal serial bus (Universal Serial Bus, USB) Drive, or a combination of two or more of the foregoing. Memory 402 may include removable or non-removable (or fixed) media, where appropriate. Memory 402 may be internal or external to the data processing apparatus, where appropriate. In a particular embodiment, the memory 402 is a non-volatile solid state memory. In a particular embodiment, the memory 402 includes Read Only Memory (ROM). The ROM may be mask programmed ROM, programmable ROM (PROM), erasable PROM (EPROM), electrically Erasable PROM (EEPROM), electrically rewritable ROM (EAROM), or flash memory, or a combination of two or more of these, where appropriate.
The processor 401 implements any of the data addressing methods of the above embodiments by reading and executing computer program instructions stored in the memory 402.
The display screen of the present embodiment may also include a communication interface 403 and a bus 410 in one example. As shown in fig. 9, the control circuit 401, the memory 402, and the communication interface 403 are connected to each other via a bus 410 and perform communication with each other. The communication interface 403 is mainly used to implement communication between each module, device, unit and/or apparatus in the embodiment of the present invention. Bus 410 includes hardware, software, or both, coupling the various components for the display screen to one another. By way of example, and not limitation, the buses may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an infiniband interconnect, a Low Pin Count (LPC) bus, a memory bus, a micro channel architecture (MCa) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a video electronics standards association local (VLB) bus, or other suitable bus, or a combination of two or more of the above. Bus 410 may include one or more buses, where appropriate. Although embodiments of the invention have been described and illustrated with respect to a particular bus, the invention contemplates any suitable bus or interconnect. The back of the sub-display screen is provided with a bracket for supporting the sub-display screen, and the bracket is formed by connecting a plurality of hollow aluminum alloys.
The above is a detailed description of a display control method and device for a multi-mode display screen and the display screen provided by the embodiment of the invention.
It should be understood that the invention is not limited to the particular arrangements and instrumentality described above and shown in the drawings. For the sake of brevity, a detailed description of known methods is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present invention are not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between steps, after appreciating the spirit of the present invention.
The functional blocks shown in the above-described structural block diagrams may be implemented in hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, a plug-in, a function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine readable medium or transmitted over transmission media or communication links by a data signal carried in a carrier wave. A "machine-readable medium" may include any medium that can store or transfer information. Examples of machine-readable media include electronic circuitry, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio Frequency (RF) links, and the like. The code segments may be downloaded via computer networks such as the internet, intranets, etc.
It should also be noted that the exemplary embodiments mentioned in this disclosure describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, or may be performed in a different order from the order in the embodiments, or several steps may be performed simultaneously.
In the foregoing, only the specific embodiments of the present invention are described, and it will be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to the corresponding processes in the foregoing method embodiments, which are not repeated herein. It should be understood that the scope of the present invention is not limited thereto, and any equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present invention, and they should be included in the scope of the present invention.

Claims (6)

1. A display control method of a multi-modal display screen, the multi-modal display screen including a plurality of sub-display screens that are separable from each other and that can be spliced into a sphere after folding, the method comprising the steps of:
Acquiring current combined form and current stage performance information of a multi-form display screen, wherein the combined form at least comprises a folding form and a separating form;
acquiring an initial image according to current stage performance information;
determining an image display mode according to the current combination form and/or stage performance information;
processing the initial display image according to the image display mode to obtain a target image;
controlling the multi-form display screen to display the target image according to the image display mode;
the method for determining the image display mode according to the current combination form and/or stage performance information further comprises the following steps:
if the current combined form is a folding form, the image display mode is a combined screen display mode, and the combined screen display mode is that a pair of complete images are jointly displayed on the folded sub-display screens;
if the current combined form is a separated form, the image display mode is a split screen display mode or an independent display mode, wherein the split screen display mode is that the separated sub-display screens respectively display part of the original images, and the independent display mode is that at least two sub-display screens display different original images;
the processing the initial display image according to the image display mode to obtain the target image further comprises the following steps:
If the image display mode is a split display mode, the number of sub display screens for split display is obtained;
dividing an original image into a plurality of sub-images according to the number of sub-display screens for split-screen display;
distributing the sub-images to each sub-display screen to serve as target images of each sub-display screen;
the sub-image is distributed to each sub-display screen to serve as a target image of each sub-display screen, and the method further comprises the following steps:
detecting whether a face image exists in the target image of each sub display screen;
if yes, detecting whether the face image is completely displayed on the currently corresponding sub-display screen;
if the face image is not completely displayed on the currently corresponding sub-display screen, adjusting the target image;
the step of if the face image is not completely displayed on the currently corresponding sub-display screen comprises the following steps:
acquiring the outline of a face image;
judging whether the face image can be completely displayed on a sub display screen according to the outline of the face image;
if yes, selecting one sub display screen from all sub display screens as a target display screen;
and adjusting the target images of each sub-display according to the target display screen and the face images so as to completely display the face images in the target display screen.
2. The display control method of the multi-modal display according to claim 1, wherein the adjusting the target image of each sub-display according to the target display and the face image to completely display the face image into the target display further comprises the steps of:
acquiring the current position of a face image on a display screen;
determining the position of the face image on the target display screen as the adjusted position when the face image is completely displayed on the target display screen according to the target display screen and the face image;
determining the pixel position adjustment quantity of the target image of each sub-display screen according to the current position and the adjusted position;
and adjusting the position of each pixel in all the sub-displayed target images according to the pixel position adjustment amount to obtain an adjusted target image.
3. The display control method of the multi-modal display according to claim 1, wherein the adjusting the target image of each sub-display according to the target display and the face image to completely display the face image into the target display further comprises the steps of:
determining the position of the face image on the target display screen as a reference position when the face image is completely displayed on the target display screen according to the face image and the target display screen;
Projecting an original image onto a virtual display screen in a folding form according to a reference position, so that the position of a face image in the original image is positioned at the reference position on the virtual display screen, wherein the virtual display screen is formed by folding virtual sub-display screens corresponding to all sub-display screens one by one;
and re-dividing the projected image into sub-images which are in one-to-one correspondence with the sub-display screens according to the corresponding relation between the sub-display screens and the virtual sub-display screens, and taking the sub-images as target images after adjustment of the sub-display screens.
4. The display control method of a polymorphic display according to claim 1, wherein the stage performance information includes a position of a target actor in a stage, and wherein the determining the image display mode according to the current combination morphology and/or the stage performance information further comprises the steps of:
acquiring a first preset area in a stage;
judging whether the target actor is in a first preset area according to the current position of the target actor in the stage;
if yes, determining that the image display mode is a tracking display mode;
the processing the initial display image according to the image display mode to obtain the target image further comprises the following steps:
when the image display mode is a tracking display mode, acquiring an included angle between a target actor and a stage preset azimuth;
Acquiring an image of a target actor in tracking display from an initial display image;
acquiring an initial display angle of an image of a target actor according to the initial display image;
acquiring a final display angle of an image of the target actor according to an included angle between the target actor and a stage preset azimuth;
determining the pixel rotation quantity of the original image according to the final display angle and the initial display angle;
and performing rotation processing on each pixel of the initial image according to the pixel rotation quantity to obtain a target image.
5. A display control device for a multi-modal display screen, the device comprising:
the combined form and scene information acquisition module is used for acquiring the current combined form and the current stage performance information of the polymorphic display screen, and the combined form at least comprises a folding form and a separating form;
the system comprises an initial image acquisition module, a stage performance information acquisition module and a stage performance information acquisition module, wherein the initial image acquisition module is used for acquiring an initial image according to current stage performance information;
the display mode acquisition module is used for determining an image display mode according to the current combination form and/or stage performance information, and comprises the following steps:
If the current combined form is a folding form, the image display mode is a combined screen display mode, and the combined screen display mode is that a pair of complete images are jointly displayed on the folded sub-display screens;
if the current combined form is a separated form, the image display mode is a split screen display mode or an independent display mode, wherein the split screen display mode is that the separated sub-display screens respectively display part of the original images, and the independent display mode is that at least two sub-display screens display different original images;
the image processing module is used for processing the initial display image according to the image display mode to obtain a target image;
the image processing module further includes:
the sub display screen quantity acquisition sub module is used for acquiring the quantity of sub display screens for split display if the image display mode is a split display mode;
the original image segmentation submodule is used for segmenting an original image into a plurality of sub-images according to the number of sub-display screens used for split-screen display;
the sub-image distribution sub-module is used for distributing the sub-images to all sub-display screens to serve as target images of all sub-display screens;
The display module is used for controlling the multi-form display screen to display the target image according to the image display mode and comprises the following steps:
detecting whether a face image exists in the target image of each sub display screen;
if yes, detecting whether the face image is completely displayed on the currently corresponding sub-display screen;
if the face image is not completely displayed on the currently corresponding sub-display screen, adjusting the target image;
the step of if the face image is not completely displayed on the currently corresponding sub-display screen further comprises:
acquiring the outline of a face image;
judging whether the face image can be completely displayed on a sub display screen according to the outline of the face image;
if yes, selecting one sub display screen from all sub display screens as a target display screen;
and adjusting the target images of each sub-display according to the target display screen and the face images so as to completely display the face images in the target display screen.
6. The polymorphic display screen, its characterized in that includes: the control circuit is used for controlling the sub-display screen driving mechanism to control the sub-display screens to be mutually separated or combined into a spherical display screen after being folded, and comprises at least one processor, at least one memory and computer program instructions stored in the memory, wherein the computer program instructions are executed by the processor to realize the method according to any one of claims 1-4.
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