CN109559675B - Warp direction addressing display method based on panoramic spherical display - Google Patents
Warp direction addressing display method based on panoramic spherical display Download PDFInfo
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- CN109559675B CN109559675B CN201811301209.6A CN201811301209A CN109559675B CN 109559675 B CN109559675 B CN 109559675B CN 201811301209 A CN201811301209 A CN 201811301209A CN 109559675 B CN109559675 B CN 109559675B
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- 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]
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Abstract
The invention discloses a warp direction addressing display method based on a panoramic spherical display, which comprises the following steps of: firstly, scanning along the longitude direction, and entering the next line of adjacent longitudes after scanning of one line is finished; step two, obtaining the panoramic spherical resolution; step three, matrix establishment and projection filling: establishing a two-dimensional matrix for storing frame image data, wherein elements of the matrix are copied and assigned by corresponding spherical image pixels; step four, scanning and displaying. According to the invention, spherical image pixels belong to a plurality of different matrix rows respectively, and are copied to corresponding row addresses during frame cache addressing, so that the method is compatible with the traditional display scanning time sequence; downward compatibility can be realized without adjusting the display time sequence; compared with the traditional determinant addressing, the method has the advantages that the longitude and latitude of the spherical coordinate system are used as two axes of the panoramic addressing, the problem of difficulty in addressing of the curved surface structure is solved, the panoramic spherical display can be separated from the dependence of a processor, the decoding addressing is directly carried out through a hardware circuit, and the cost is reduced.
Description
Technical Field
The invention relates to the field of panoramic image display and image addressing display, and the field of closed cabin information display and interaction, in particular to a warp direction addressing display method based on a panoramic spherical display.
Background
In recent years, the augmented reality technology, the virtual reality technology, the aviation field and other fields are rapidly developed, the requirements for acquiring and displaying panoramic images are continuously improved, and the status and the value of panoramic display in a closed cabin are more and more prominent.
The panoramic display system is mainly applied to two scenes, and is based on virtual reality firstly, and the panoramic display method is popular in the prior art. However, most of panoramic display schemes based on virtual reality require users to wear VR glasses, which not only limits the visual field of the users, but also causes inconvenience to the actions of the users, and also has various problems of edge distortion, easy glare and the like.
A second application scenario for panoramic display systems is closed cabin display systems. In a traditional closed cabin display system, a display part mostly adopts multiple display units, namely panoramic display is realized by splicing multiple two-dimensional screens. The control module corresponding to the display module respectively controls the contents displayed on a plurality of screens through a plurality of video capture cards, so that different images are displayed on different screens, and the displayed contents are mutually related. The process of addressing and displaying is simple for this display scheme. But the method is realized based on two-dimensional screen splicing, and the number of screens is limited; when a better display effect is pursued and a finer cambered surface is tried to be spliced by the flat display screen, the number of the display screens required by the scheme and the number of the corresponding video acquisition cards are greatly increased; meanwhile, the complexity of controlling the video capture cards and the display screen in parallel is greatly increased, and the corresponding software and hardware costs are greatly increased. Thus, such a solution is difficult to implement in a closed environment of a spherical or other irregular housing.
Furthermore, for spherical panoramic displays, addressing of images is an unsolved problem, conventional display devices are based on two-dimensional planar determinant scanning, and spherical images cannot traverse all pixels at once without processing.
Disclosure of Invention
The technical problem to be solved by the invention is as follows:
in order to solve the problem of difficulty in addressing of panoramic spherical display due to the curved surface structure of the panoramic spherical display, the invention provides a panoramic spherical display and an addressing display method based on the panoramic spherical display.
The invention adopts the following technical scheme for solving the technical problems:
the invention provides a warp direction addressing display method based on a panoramic spherical display, which comprises the following steps:
firstly, determining a scanning time sequence, namely firstly scanning along the longitude direction, entering the next line of adjacent longitudes after one line of scanning is finished, setting an included angle between a connecting line of a scanning point and a sphere center and a positive semi-axis of a z axis as a scanning angle α, and setting an included angle between a vertical line from the scanning point to the z axis and a 0-degree longitude plane as a scanning angle β, wherein the scanning angle α ranges from 0 degree to 180 degrees in the scanning process along the same longitude, and the scanning angle β ranges from 0 degree to 360 degrees in the scanning process of changing longitude;
step two, obtaining the panoramic spherical resolution: let the spherical pixel pitch be d, the spherical radius of the panoramic spherical display be r, and then the panoramic spherical resolution is expressed as:
wherein, ymIs the total number of pixels in the warp direction, xmThe total number of pixels in the weft direction;
step three, matrix establishment and projection filling: establishing an xm*ymThe two-dimensional matrix is used for storing frame image data, and elements of the matrix are copied and assigned by corresponding spherical image pixels;
step four, scanning and displaying: and scanning the scanning points on the spherical display according to the time sequence in the step one, and sequentially outputting the matrix elements in the step three.
A method of displaying a panoramic spherical display based on the warp direction addressing as described above, further wherein the polar pixels are connected to each row of display drivers with solid lines.
The method for displaying the panoramic spherical display by addressing in the warp direction is characterized in that the pole pixels are not connected with the display drive, and a blank pixel period is reserved on the time sequence drive.
As mentioned above, in the scanning display process of step four, for the pixel particles near the poles, a multi-row driving circuit is provided, so that the driving circuit is compatible with the conventional driving.
Compared with the prior art, the invention adopting the technical scheme has the following technical effects:
1. the addressing display method divides and arranges panoramic spherical pixel points by longitude and latitude, the circumferences of different longitude lines are the same, pixels close to poles respectively belong to a plurality of different rows, the frames are cached and addressed, repeated pixels are copied to corresponding row addresses, and the traditional display scanning time sequence is compatible;
2. the method only operates the pixel arrangement of the frame buffer, carries out uniform alignment processing on pixel data of unaligned lines, aligns the memory space occupied by each line with the maximum line, and sets the empty pixel space to be black. Although the method uses more memory capacity, the method can be directly compatible with the traditional display time sequence without other operations, such as adjusting the display time sequence.
3. Compared with the traditional determinant addressing, the addressing method has the advantages that the latitude and longitude are used as two axes of the panoramic addressing, and the panoramic image can be directly displayed on the spherical display, so that the problem of difficulty in addressing of the spherical panoramic display due to the curved surface structure of the spherical panoramic display is solved, the panoramic spherical display can be separated from the processor, the decoding and addressing can be directly carried out through the hardware circuit, the cost is reduced, the energy efficiency is improved, and the panoramic display standard is unified.
Drawings
FIG. 1 is a schematic view of a warp line synchronous scanning coordinate;
FIG. 2 is a diagram illustrating the relationship between pole pixels and a matrix;
FIG. 3 is a schematic diagram of a relationship between a pixel and a matrix;
FIG. 4 is a corresponding bottom level circuit driver;
FIG. 5 is a block diagram of a panoramic spherical display;
Detailed Description
The technical scheme of the invention is further explained in detail by combining the attached drawings:
it will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The addressing display method of the invention is used for solving the existing problems in the situation of panoramic spherical display, so that the addressing display method is based on the hardware of a panoramic spherical display. The display is used for realizing panoramic spherical display of images and at least comprises a spherical shell, a spherical circuit substrate, a luminescent material, a spherical protective layer, a spherical upper electrode plate and an addressing circuit. The panoramic spherical display may further include a power supply and a video input interface. Fig. 5 is a structural diagram of the panoramic spherical display. The spherical circuit substrate is used as an electrode of the display panel and a driving source of the luminescent particles; the luminous material is used as a luminous source of the panoramic spherical display; the luminescent material, the spherical protective layer and the spherical upper electrode plate are sequentially attached to the spherical circuit substrate in a physical deposition mode.
The display directions of the panoramic spherical display comprise outward display and inward display, the light-emitting device is formed by densely arranging and attaching point light source devices suitable for spherical display, such as L ED patches.
In the scanning process of the invention, scanning is firstly carried out along the warp direction, namely the warp direction is taken as the row direction for displaying the scanning time sequence, next row is entered after one row is scanned, namely the weft direction is taken as the column direction for displaying the scanning time sequence, the next row is selected according to the weft direction, namely the weft direction is taken as the column direction for displaying the scanning time sequence, the scanning angle α ranges from 0 degree to 180 degrees in the longitudinal scanning process along longitude and across latitude, and the scanning angle β ranges from 0 degree to 360 degrees in the transverse scanning process along longitude and across longitude.
The coordinate system and scanning timing of the spherical scanning are specified, and then the resolution of the panoramic spherical display needs to be determined.
For different grain sizes of the display material, taking Mini L ED as an example, the pixel pitch of L ED patches is d, and if the radius of the panoramic spherical display is r, the panoramic resolution is as follows:
in the case of a panoramic spherical display of defined size, the resolution of the image is thus defined.
On the other hand, the scheme ensures that the image data is still a complete two-dimensional matrix, so that the method is compatible with the traditional image addressing method. Because the display addressing time sequence is along the longitude direction, near the pole, a plurality of elements in the two-dimensional matrix store the value of the same pixel point in the image.
Since the number of pixels per row is the same, it is compatible with conventional display addressing, and is addressable from memory. According to the conventional display addressing method, for resolution xm*ymThe frame rate of display can be directly obtained by addressing the image frame and determining the pixel clock period. Image frame data requires copying of one pixel into multiple lines as shown in fig. 3. Considering the extreme case of fig. 2, where there is only one pixel at the extreme left-most point, and the element in the image data matrix corresponding to this pixel is located in all rows of the matrix, we need to copy the value of this pixel in the image into each row of the image data matrix, from one pixel to ymThe values are stored. Repeating from two poles to the middle less and less until there is no repetition at the equator. The density and number depend on the resolution of the display and the density of the light emitting particles on the sphere.
The corresponding bottom circuit driving of the method of the invention is shown in fig. 4. And the image pixels close to the poles, each pixel corresponds to a plurality of elements in different rows in the image data matrix, and the pixel points at the poles correspond to one element in each row in the image data matrix. These correspondences may be connected by solid lines or not, leaving a blank pixel period in timing driving.
The foregoing is only a partial embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. A warp direction addressing display method based on a panoramic spherical display is characterized by comprising the following steps:
firstly, determining a scanning time sequence, namely firstly scanning along the longitude direction, entering the next line of adjacent longitudes after one line of scanning is finished, setting an included angle between a connecting line of a scanning point and a sphere center and a positive semi-axis of a z axis as a scanning angle α, and setting an included angle between a vertical line from the scanning point to the z axis and a 0-degree longitude plane as a scanning angle β, wherein the scanning angle α ranges from 0 degree to 180 degrees in the scanning process along the same longitude, and the scanning angle β ranges from 0 degree to 360 degrees in the scanning process of changing longitude;
step two, obtaining the panoramic spherical resolution: let the spherical pixel pitch be d, the spherical radius of the panoramic spherical display be r, and then the panoramic spherical resolution is expressed as:
wherein, ymIs the total number of pixels in the warp direction, xmThe total number of pixels in the weft direction;
step three, matrix establishment and projection filling: establishing an xm*ymThe two-dimensional matrix is used for storing frame image data, and elements of the two-dimensional matrix are copied and assigned by corresponding spherical image pixels;
step four, scanning and displaying: and scanning the scanning points on the spherical display according to the scanning time sequence in the step one, and sequentially outputting the elements of the two-dimensional matrix in the step three.
2. The method of claim 1, wherein the polar pixels are connected to each row of display drivers by solid lines.
3. The method of claim 1, wherein the polar pixels are not connected to the display driver and a blank pixel period is left on the timing driver.
4. The method as claimed in claim 1, wherein in the step four scanning display process, a plurality of rows of driving circuits are provided for pixel particles near the poles, so that the driving circuits are compatible with conventional driving.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102915680A (en) * | 2012-01-13 | 2013-02-06 | 深圳市康硕展电子有限公司 | Pixel arrangement structure of spherical LED (Light-Emitting Diode) display screen |
| CN106249532A (en) * | 2015-12-25 | 2016-12-21 | 北京智谷睿拓技术服务有限公司 | Sphere display packing, sphere display device and subscriber equipment |
| CN106558017A (en) * | 2015-09-25 | 2017-04-05 | 无锡羿飞科技有限公司 | Spherical display image processing method and system |
| CN107221259A (en) * | 2017-06-30 | 2017-09-29 | 成都成电光信科技股份有限公司 | A kind of spherical display and display methods |
| CN108243333A (en) * | 2016-12-23 | 2018-07-03 | 上海微湃电子科技有限公司 | The projecting method and back projection method of panoramic video and picture |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101723642B1 (en) * | 2011-01-31 | 2017-04-19 | 삼성전자주식회사 | Photographing apparatus for photographing a panorama image and method thereof |
| US10147160B2 (en) * | 2015-09-30 | 2018-12-04 | Ricoh Company, Ltd. | Image management apparatus and system, and method for controlling display of captured image |
-
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102915680A (en) * | 2012-01-13 | 2013-02-06 | 深圳市康硕展电子有限公司 | Pixel arrangement structure of spherical LED (Light-Emitting Diode) display screen |
| CN106558017A (en) * | 2015-09-25 | 2017-04-05 | 无锡羿飞科技有限公司 | Spherical display image processing method and system |
| CN106249532A (en) * | 2015-12-25 | 2016-12-21 | 北京智谷睿拓技术服务有限公司 | Sphere display packing, sphere display device and subscriber equipment |
| CN108243333A (en) * | 2016-12-23 | 2018-07-03 | 上海微湃电子科技有限公司 | The projecting method and back projection method of panoramic video and picture |
| CN107221259A (en) * | 2017-06-30 | 2017-09-29 | 成都成电光信科技股份有限公司 | A kind of spherical display and display methods |
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