CN118264859A - Display output method, device, equipment and medium - Google Patents
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Abstract
The application relates to a display output method, a device, equipment and a medium, wherein the display output method comprises the following steps: acquiring a video image; dividing the video image to obtain at least two video image partitions; determining frame inserting strategy information corresponding to each video image partition according to the original frame rate of each video image partition; determining a target refresh rate corresponding to each video image partition based on the frame inserting strategy information; and outputting display driving signals corresponding to each video image partition according to the target refresh rate corresponding to each video image partition, so that the video image partition can refresh data according to the target refresh rate corresponding to each video image partition, thereby realizing the effect that different areas can realize smooth image quality of moving images, and solving the problem of area jitter caused by unmatched frame refresh rate and frame rate of partial areas of the video images in the prior art.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a display output method, device, apparatus, and medium.
Background
With the rapid development of display technology, video pictures displayed by display devices such as liquid crystal televisions are becoming clearer. For example, existing lcd televisions typically implement their motion estimation and motion compensation (ESTIMATE AND Motion Compensation, MEMC) functions using motion picture quality compensation techniques. However, due to the rapid development of streaming media technology, video sources of video websites are very abundant at present, for example, the video sources of video websites may be short videos made by a producer by editing original videos. Many videos do not necessarily match the frame rate of the subtitle configuration with the original video due to the background knowledge of the producer or equipment limitations, such as 60HZ for the video source, but 50HZ for the subtitle portion. Because the current LCD driving technology can only uniformly receive signals with one frame rate, whether 60HZ is used as standard or 50HZ is used as standard, and finally, only 120HZ or 100HZ can be uniformly inserted for displaying, the unmatched area jitter can be caused, and the optimal effect of the MEMC function can not be exerted.
Disclosure of Invention
The application provides a display output method, a device, equipment and a medium, which are used for solving the problem of area jitter caused by unmatched frame refresh rate and frame rate of partial area of video image in the prior art.
In a first aspect, the present application provides a display output method, including:
acquiring a video image;
dividing the video image to obtain at least two video image partitions;
Determining frame inserting strategy information corresponding to each video image partition according to the original frame rate of each video image partition;
determining a target refresh rate corresponding to each video image partition based on the frame inserting strategy information;
And outputting display driving signals corresponding to the video image partitions according to the target refresh rates corresponding to the video image partitions.
Optionally, determining the frame inserting policy information corresponding to each video image partition according to the original frame rate of each video image partition, including:
identifying an original frame rate for each video image partition;
And determining the frame inserting strategy information corresponding to the original frame frequency and a preset target frame inserting frequency as the frame inserting strategy information for each video image partition.
Optionally, the dividing the video image to obtain at least two video image partitions includes:
Performing subtitle identification on the video image to obtain boundary information of the subtitle;
Performing example segmentation on the video image by utilizing the boundary information to obtain a subtitle region and a background image region;
And determining the subtitle region and the background image region as the video image region.
Optionally, the performing subtitle recognition on the video image to obtain boundary information of the subtitle includes:
Judging whether the video image is a picture with a subtitle;
If the video image is a picture with a subtitle, inputting the video image into a preset subtitle identification model to obtain subtitle coordinate information output by the subtitle identification model;
And determining boundary information of the caption by adopting the caption coordinate information.
Optionally, the determining, based on the frame inserting policy information, a target refresh rate corresponding to each video image partition includes:
Determining the line refreshing frequency of each video image partition by adopting the frame inserting strategy information corresponding to each video image partition;
for each video image partition, the row refresh frequency is determined to be the target refresh rate.
Optionally, outputting display driving signals corresponding to each video image partition according to the target refresh rate corresponding to each video image partition, including:
Acquiring display resolution;
A target pixel row corresponding to each video image partition based on the display resolution;
and outputting the display driving signals to the target pixel row according to the target refresh rate for each video image partition.
Optionally, the display output method further includes:
determining a current frame field refresh rate corresponding to the video image by adopting a target refresh rate corresponding to each video image partition;
and outputting a data source signal to the pixel columns corresponding to the video partitions according to the current frame field refresh rate.
In a second aspect, the present application provides a display output device comprising:
the video image acquisition module is used for acquiring video images;
The video image segmentation module is used for segmenting the video image to obtain at least two video image partitions;
the frame inserting strategy determining module is used for determining frame inserting strategy information corresponding to each video image partition according to the original frame rate of each video image partition;
The target refresh rate determining module is used for determining a target refresh rate corresponding to each video image partition based on the frame inserting strategy information;
and the driving output module is used for outputting display driving signals corresponding to the video image partitions according to the target refresh rates corresponding to the video image partitions.
In a third aspect, the present application provides a display apparatus comprising: the device comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus; a memory for storing a computer program; and a processor for implementing the steps of the display output method according to any one of the above-described embodiments of the present application when executing the program stored in the memory.
In a fourth aspect, the present application provides a computer storage medium storing computer executable instructions for performing the steps of the display output method according to any one of the above-mentioned aspects of the present application.
According to the technical scheme provided by the embodiment of the application, the video image is obtained and segmented to obtain at least two video image partitions, and then the frame inserting strategy information corresponding to each video image partition is determined according to the original frame rate of each video image partition, so that the target refresh rate corresponding to each video image partition is determined based on the frame inserting strategy information, and accordingly display driving signals corresponding to each video image partition can be output according to the target refresh rate corresponding to each video image partition, the video image partition can refresh data according to the target refresh rate corresponding to each video image partition, and further the effect that moving images are smooth in quality can be achieved in different areas is achieved, and the problem of area jitter caused by mismatching of the frame refresh rate and the frame rate of a video image partial area in the prior art is solved.
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The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.
FIG. 1 is a flowchart illustrating steps of a display output method according to an embodiment of the present application;
fig. 2 is a schematic flow chart of dividing a video image by using caption coordinate information according to an example of the present application;
fig. 3 is a schematic diagram of dividing a video image into a subtitle region and a background image region according to an example of the present application;
FIG. 4 is a schematic diagram of a pixel array according to an example of the present application;
FIG. 5 is a block diagram showing the final structure of a display output according to an embodiment of the present application;
Fig. 6 is a schematic structural diagram of a display device according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The following disclosure provides many different embodiments, or examples, for implementing different structures of the invention. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
It should be noted that, the working principle of the MEMC is mainly to use a dynamic mapping system to insert a frame of motion compensation frame between two traditional frames of images, so as to raise the 50/60Hz refresh rate of a common flat-panel television to 100/120Hz, thus making the moving picture clearer and smoother, and better than the normal response effect, so as to achieve the effects of eliminating the afterimage of the previous frame of image and improving the dynamic definition, and reduce the image tailing to the extent that the human eyes are hard to perceive.
For example, the frame sequence of the original one streaming picture is: 123 45 6; after the motion trend of the image is analyzed in both the horizontal and vertical directions by dividing the block, an intermediate frame is inserted between the original frames, and the frame sequence after the frame insertion becomes: 1 1C2 2C 3 3C 4 4C 5 5C 6, so that the original field frequency is insufficient to appear in all frames, the field frequency needs to be doubled, i.e. from 50/60Hz to 100/120Hz.
In the related art, the timing control (Timing Controller, tcon) circuit actually has only one vertical synchronization (Vertical Synchronization, vsync) circuit for receiving the field frequency signal and applying to the field synchronization of the entire panel driving signal. Therefore, the current lcd driving technology can only uniformly receive signals of one frame rate, such as 50HZ,60HZ,100HZ or 120HZ signals. At this time, the frame is uniformly inserted to 120HZ or 100HZ at last, regardless of whether 60HZ or 50HZ is used, which causes unmatched area jitter and affects the smooth effect of the moving image quality.
In order to solve the problem of the region jitter, the embodiment of the application provides a display output method, a device, equipment and a medium, which can output different frame rates for different regions and realize the effect that different regions of a picture can move smoothly.
Fig. 1 is a schematic flow chart of steps of a display output method according to an embodiment of the present application. In an embodiment of the present application, the display output method provided in the embodiment of the present application may be applied to a display device such as a liquid crystal display, and may specifically include the following steps:
Step 110, obtaining a video image;
The video image may refer to a video picture extracted from a video.
Step 120, dividing the video image to obtain at least two video image partitions;
The video image partition may refer to an image area that is segmented from a video image, such as a subtitle area and a background image area that may include a video image, which is not limited in this embodiment. In this step, the video image may be divided to divide the video image into two or more video image partitions, so that the subtitle region and other regions in the video image may be distinguished. The other region refers to a non-subtitling region in the video image, such as a background image region that may be video.
Step 130, determining frame inserting strategy information corresponding to each video image partition according to the original frame rate of each video image partition;
The original frame rate of the video image analysis refers to the frame rate of the original frame of the video image partition; the frame insertion policy information corresponding to the video image partition may refer to a frame insertion policy adopted by the video image partition, for example, may include a refresh rate after frame insertion, which is not limited in this embodiment. Specifically, after the video image partitions after the video image segmentation are obtained, the embodiment of the application can identify the original frame rate of each video image partition, so that corresponding frame inserting strategy information is adopted according to the original frame rate and is used as the frame inserting strategy information corresponding to the video image partitions, and different frame inserting frequency multiplication can be carried out on different areas based on the frame inserting strategy information.
Step 140, determining a target refresh rate corresponding to each video image partition based on the frame inserting strategy information;
The target refresh rate of the video image partition may refer to a refresh rate of the video image partition that needs to be output. Specifically, after determining the frame inserting strategy information corresponding to each video image partition, the embodiment of the application can determine the target refresh rate corresponding to the video image partition by adopting the frame inserting strategy information for each video image partition, so that the display output can be carried out according to the target refresh rate corresponding to each video image partition subsequently, and different areas can be output according to different frame refresh rates.
And step 150, outputting display driving signals corresponding to the video image partitions according to the target refresh rates corresponding to the video image partitions.
Wherein the display drive signal may be used to control the gate drive switch such that each video image partition may individually output a frame refresh rate that is the same as the target refresh rate. Specifically, display devices such as a liquid crystal display screen and the like are usually displayed through a pixel array, after determining a target refresh rate corresponding to each video image partition, the embodiment of the application can output a display driving signal to pixels corresponding to each video image partition according to the target refresh rate corresponding to the video image partition for each video image partition, so as to output a corresponding display driving signal to each video image partition according to the target refresh rate corresponding to each video image partition, and the pixels in different video image partitions can refresh data according to respective frequencies, namely according to the target refresh rate, thereby enabling different areas to realize the effect of smooth moving image quality.
In summary, the embodiment of the application obtains at least two video image partitions by acquiring video images and dividing the acquired video images, then determines the frame inserting strategy information corresponding to each video image partition according to the original frame rate of each video image partition, so as to determine the target refresh rate corresponding to each video image partition based on the frame inserting strategy information, and further output display driving signals corresponding to each video image partition according to the target refresh rate corresponding to each video image partition, so that the video image partition can refresh data according to the target refresh rate corresponding to each video image partition, further realize the effect of smooth moving image quality in different areas, and solve the problem of unmatched frame refresh rate and frame rate of partial area of video image caused by the refresh data according to the same frequency in the prior art, namely, solve the problem of area dithering caused by unmatched frame refresh rate and frame rate of partial area of video image in the prior art.
In an embodiment of the application, the frame inserting strategy information corresponding to each video image partition can be determined by identifying the original frame rate of each video image partition, so that the driving mode of the display device is improved by adopting the corresponding frame inserting strategy according to the original frame rate of the video image partition, and the display device can receive different frame refreshing rates in a partition, thereby realizing the effect that the moving image quality of different areas can be smooth. Optionally, the determining, according to the original frame rate of each video image partition, the frame inserting policy information corresponding to each video image partition may specifically include: identifying an original frame rate for each video image partition; and determining the frame inserting strategy information corresponding to the original frame frequency and a preset target frame inserting frequency as the frame inserting strategy information for each video image partition.
For example, in the video playing process, a video image frame to be displayed can be obtained, a picture of the video image frame is taken as a video image, then the same video image can be divided into two or more video image partitions through a segmentation task, then the original frame rate of each video image partition can be identified by adopting an original frame judging mode aiming at the video image partition, different frame inserting frequency multiplication is carried out on different areas by adopting corresponding frame inserting strategy information, and a display driving mode is improved, such as a display driving mode of a liquid crystal screen is improved, so that the liquid crystal screen can receive different frame refreshing rates in a partition mode, and the effect that moving images in different areas are smooth in quality is achieved.
It should be noted that, the segmentation task refers to a task of segmenting an image into a plurality of regions, each region generally corresponding to an object or a part of an object in the image; the segmentation task may include instance segmentation; instance segmentation is the segmentation of each object instance in an image, typically by segmenting each object in the image to obtain bounding box and mask information for the object. The object of example segmentation is to segment each object in the image to obtain individual object examples, and common example segmentation methods include a bounding box-based method, a mask-based method, a blending method based on a bounding box and a mask, and the like, which are not limited by the embodiments of the present application.
In an alternative embodiment of the present application, after identifying a subtitle in a video image, the video image may be subjected to example segmentation using the boundary information of the subtitle to distinguish a region from other regions, where the other regions may include a background image region of the video image, and further the subtitle region and the background image region may be determined as the video image partition. Optionally, the method for dividing the video image to obtain at least two video image partitions according to the embodiment of the present application may specifically include: performing subtitle identification on the video image to obtain boundary information of the subtitle; performing example segmentation on the video image by utilizing the boundary information to obtain a subtitle region and a background image region; and determining the subtitle region and the background image region as the video image region.
In a specific implementation, after a video image is obtained, whether the video image is a picture with a subtitle can be determined by judging whether the video image contains the subtitle, so that the video image is subjected to subtitle recognition to obtain boundary information of the subtitle under the condition that the obtained video image is the picture with the subtitle, and thus the video image can be subjected to example segmentation by utilizing the boundary information of the subtitle to obtain a subtitle region and a background image region, so that the video image region is used as a video image partition.
Optionally, the embodiment of the present application performs subtitle recognition on the video image to obtain boundary information of the subtitle, which may specifically include: judging whether the video image is a picture with a subtitle; if the video image is a picture with a subtitle, inputting the video image into a preset subtitle identification model to obtain subtitle coordinate information output by the subtitle identification model, so that the boundary information of the subtitle can be determined by using the subtitle coordinate information.
As an example of the present application, in the case where the display screen of the television is a liquid crystal screen, the GPU module of the SOC of the television chip may be utilized to obtain a required AI caption recognition model through a large number of training with caption pictures, and the AI caption recognition model may be used as a preset caption recognition model, so that boundary information of a caption may be obtained when a video image is arbitrarily input to the caption recognition model. Specifically, when a video image is arbitrarily input to the caption recognition model, as shown in fig. 2, caption coordinate information may be obtained, for example, the caption coordinate information may include four coordinate values, which are respectively X1, X2, Y1, and Y2, and then the four coordinate values may be input to the MEMC module of the back end SOC as boundary information of the caption, and then the video image may be cut into two areas, namely, a background area 1 and a caption area 2, by the MEMC module, as shown in fig. 3, so that the background area 1 may be determined as a background image area of the video image, and the caption area 2 may be determined as a caption area of the video image, and then different original frame rate decisions may be made according to the obtained caption area and background image area, so that different frame insertion policy information may be respectively adopted for different signals by the MEMC module, so that different frame insertion frequency multiplication may be made for different areas based on the frame insertion policy information, and different areas of the liquid crystal display effects after different frame insertion. Note that, in fig. 3, point a is the origin of the coordinate system, and its coordinate value is (0, 0); the point a coordinate value is (X1, Y2).
For example, although the frame rate of the current video is 60HZ, if the detected original frame of the background image area is 24HZ, 24HZ may be used as the original frame rate of the background image area, and the frame inserting strategy information corresponding to the background image area may be determined as the frame inserting frequency 120HZ corresponding to the preset target frame inserting frequency corresponding to 24HZ, so that the background image area may be uniformly inserted to 120HZ based on the frame inserting strategy information later; if the detected original frame of the background image area is 25HZ, the 25HZ may be used as the original frame rate of the background image area, and the frame inserting strategy information corresponding to the background image area may be determined by using the target frame inserting frequency 100HZ corresponding to the 25HZ as the frame inserting strategy information corresponding to the background image area, so that the background image area may be uniformly inserted to 100HZ based on the frame inserting strategy information. If the detected original frame rate of the caption area is 25HZ, the preset target frame inserting frequency 100HZ corresponding to 25HZ can be determined as the frame inserting strategy information corresponding to the caption area, so that the caption area is uniformly inserted to 100HZ for display output. If the detected original frame rate of the caption area is 24HZ, the preset target frame inserting frequency 120HZ corresponding to the 24HZ is determined as frame inserting strategy information corresponding to the caption area, so that the caption area is uniformly inserted to 100HZ for display output.
Therefore, the background image area and the subtitle area in this example can be refreshed with the frequencies most suitable for each, for example, the refreshing can be performed according to 100HZ or 120HZ, so that different areas of the liquid crystal display show different effects after frame insertion, further, the effect that different areas of the picture can be smooth in movement is achieved, and the picture smoothness is improved.
It should be noted that, the display output method provided by the embodiment of the present application may be applied to not only outputting a subtitle scene, but also displaying situations with different frame rates in other frames, such as picture-in-picture, multiplexing, etc. all may use the display output method provided by the embodiment of the present application, by dividing video images first, then making an original frame decision for each video image partition, so as to identify the original frame rate of each video image partition, and determining a target refresh rate corresponding to each video image partition by adopting corresponding frame inserting policy information, so as to use different policies to double frequencies, and send to a timing control module capable of setting different output frame rates, so that display devices such as a liquid crystal display may output different frame rates for different areas, and finally realize the effect that different areas of the picture may move smoothly.
In a specific implementation, a display device such as a liquid crystal display is typically driven line by line, i.e., a row is turned on sequentially, and each time a row is turned on, all data signals transmitted by the data signal lines are applied to the pixels of the row. Therefore, in an optional embodiment of the present application, after determining the frame inserting policy information corresponding to each video image partition, the frame inserting policy information may be used to determine a row refresh frequency corresponding to each video image partition, and the row refresh frequency may be used as a target refresh rate corresponding to the video image partition, so that driving output may be performed according to the row refresh corresponding to each video image partition, so that different pixel rows may be refreshed according to respective frequencies, that is, the video image partition may refresh data according to the row refresh rate, to implement different video image partitions to implement different frame refresh rate output.
Optionally, the determining, based on the frame inserting policy information, a target refresh rate corresponding to each video image partition according to the embodiment of the present application may specifically include: determining the line refreshing frequency of each video image partition by adopting the frame inserting strategy information corresponding to each video image partition; for each video image partition, the row refresh frequency is determined to be the target refresh rate. The line refresh rate corresponding to the video image partition may refer to a frame refresh rate required to be output by a pixel line where the video image partition is located.
For example, after the frame inserting strategy information corresponding to a certain video image partition is determined, the frame inserting strategy information can be used for determining the target refresh frequency of the video image partition, the target refresh frequency can be used as the target refresh rate corresponding to the video image partition, and a driving display signal is output to a target pixel row corresponding to the video image partition according to the target refresh rate corresponding to the video image partition, so that different pixel rows can carry out data refresh according to respective row refresh frequencies, further different areas can be output according to different frame refresh rates, the effect that the moving image quality of the different areas is smooth can be achieved, and the problem of area jitter caused by mismatching of the frame refresh rate and the frame rate of the video image partial area in the prior art is solved.
It should be noted that, the target pixel row corresponding to the video image partition may refer to a pixel row required to be driven for displaying the video image partition, where the pixel row refers to a row in the pixel array, for example, in a case where the first row of pixels and the second row of pixels in the pixel array need to be driven for displaying the background image area, the first row and the second row in the pixel array may be determined as the target pixel row corresponding to the background image area; as another example, in the case where the subtitle region displaying the video image needs to drive the third row of pixels in the pixel array, the third row in the pixel array may be determined as the target pixel row corresponding to the background image region.
In an optional embodiment of the present application, outputting display driving signals corresponding to each video image partition according to a target refresh rate corresponding to each video image partition, may specifically include: acquiring display resolution; a target pixel row corresponding to each video image partition based on the display resolution; and outputting the display driving signals to the target pixel row according to the target refresh rate for each video image partition. The display driving signal may be used to control a switch of each row in the pixel array, for example, may be a Gate driving signal, which may be a signal output from a Gate driving integrated circuit (Gate IC).
Specifically, after determining the target refresh rate corresponding to the video image partition, the embodiment of the application can calculate the pixel row where each video image partition is located by acquiring the display resolution of the display device and calculating according to the display resolution, and can determine the pixel row where each video image partition is located as the target pixel row corresponding to the video image partition, and then can output a display driving signal to the target pixel row corresponding to each video image partition according to the target refresh rate corresponding to each video image partition so as to control the switch of the target pixel row, so that each pixel row can be refreshed according to the respective target refresh rate, and further different frame refresh rate outputs are respectively realized in different areas.
Note that, the Gate driving signal Gate, as a display driving signal, may be used to control the switches of each row of the pixel array as described in fig. 4; a data Source integrated circuit (Source IC) for controlling data refresh for each column in the pixel array; the data is refreshed once when the row switch and the column switch are simultaneously turned on, i.e., once when the row and the column are simultaneously turned on.
In the prior art, different pixel rows refresh data at the same frequency, so that the area jitter caused by the mismatch between the frame refresh rate and the frame rate of the partial area of the video image occurs in the prior art. Therefore, in an embodiment of the present application, a display driving manner may be improved by controlling a switch of the Gate IC, and a display driving signal may be output to a target pixel row corresponding to the video image partition according to a target refresh rate, so as to control the switch of the target pixel row, so that each pixel row may be refreshed according to a respective target refresh rate, and further different regions may realize different frame refresh rate outputs, thereby solving the problem that in the prior art, the frame refresh rate is not matched with the frame rate of a partial region of the video image due to the refresh data according to the same frequency.
Optionally, the display output method provided by the embodiment of the present application may further include: determining a current frame field refresh rate corresponding to the video image by adopting a target refresh rate corresponding to each video image partition; and outputting a data source signal to the pixel columns corresponding to the video partitions according to the current frame field refresh rate. The data Source signal may be a data Source (Source) portion signal, and may specifically be a Source signal output by a Source IC, for controlling data refresh of each column in the pixel array.
For example, to achieve that different regions of the lcd may receive different frame refresh rates, in combination with the above example, the current frame field refresh rate may be mentioned as 600HZ based on a least common multiple of 100HZ and 120HZ, and then the refresh rates of different rows may be controlled by controlling the switch of the gate driving chip gateIC, so that the target pixel rows corresponding to each video image partition may output display driving signals according to their corresponding target refresh rates, that is, each row in the pixel array may individually output a frame refresh rate of 100HZ or 120HZ, for example, the first row and the second row in the pixel array may be refreshed according to 100HZ, and the third row may be refreshed according to 100 HZ; the data source signal is output according to 600HZ, such as a signal of 100HZ is output by 6 times, and a signal of 120HZ is output by 5 times, as column signals of the pixel array. Although the data source signal is output according to 600HZ, the data will not be brushed as long as the Gate signal is not updated, thereby realizing different frame brushing rate output for different areas respectively.
In summary, the embodiment of the application divides the acquired video image and determines the frame inserting strategy information of each video image partition according to the original frame rate of each video image partition, so as to determine the target refresh rate corresponding to each video image partition based on the frame inserting strategy information corresponding to each video image partition, thereby outputting the display driving signal corresponding to each video image partition according to the target refresh rate corresponding to each video image partition, determining the current frame field refresh rate by adopting the target refresh rate corresponding to each video image partition, outputting the data source signal to the pixel column corresponding to each video partition according to the current frame field refresh rate, realizing the improvement of the driving mode, further realizing the smooth effect of the moving image quality in different areas on the premise of not greatly changing the current MEMC hardware and the liquid crystal screen hardware, and solving the problem that various scenes such as the original 24HZ, 25HZ or 30HZ signals are matched with different subtitles.
It should be noted that, for simplicity of description, the method embodiments are shown as a series of acts, but it should be understood by those skilled in the art that the embodiments are not limited by the order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments.
As shown in fig. 5, the embodiment of the present application further provides a display output device, which includes the following modules:
A video image acquisition module 510, configured to acquire a video image;
the video image segmentation module 520 is configured to segment the video image to obtain at least two video image partitions;
The frame inserting strategy determining module 530 is configured to determine frame inserting strategy information corresponding to each video image partition according to an original frame rate of each video image partition;
a target refresh rate determining module 540, configured to determine a target refresh rate corresponding to each video image partition based on the frame insertion policy information;
The driving output module 550 is configured to output display driving signals corresponding to each video image partition according to the target refresh rate corresponding to each video image partition.
Optionally, the frame insertion policy determining module 530 includes:
An original frame rate identification sub-module for identifying an original frame rate of each video image partition;
and the frame inserting strategy information sub-module is used for determining the frame inserting strategy information corresponding to the original frame frequency and a preset target frame inserting frequency for each video image partition.
Optionally, the video image segmentation module 520 includes:
The subtitle identification sub-module is used for carrying out subtitle identification on the video image to obtain the boundary information of the subtitle;
the segmentation sub-module is used for carrying out example segmentation on the video image by utilizing the boundary information to obtain a subtitle region and a background image region;
And the image partition determining submodule is used for determining the subtitle area and the background image area as the video image partition.
Optionally, the subtitle identifying submodule is specifically configured to: judging whether the video image is a picture with a subtitle; if the video image is a picture with a subtitle, inputting the video image into a preset subtitle identification model to obtain subtitle coordinate information output by the subtitle identification model; and determining boundary information of the caption by adopting the caption coordinate information.
Optionally, the target refresh rate determination module 540 includes:
The target refresh rate determining submodule is used for determining the line refresh frequency of each video image partition by adopting the frame inserting strategy information corresponding to each video image partition;
a target refresh rate determination sub-module for determining, for each video image partition, the row refresh rate as the target refresh rate.
Optionally, the driving output module 550 includes:
a resolution obtaining sub-module for obtaining display resolution;
a target pixel row sub-module, configured to determine a target pixel row corresponding to each video image partition based on the display resolution;
And the display driving output sub-module is used for outputting the display driving signals to the target pixel row according to the target refresh rate for each video image partition.
Optionally, the display output device further includes: the field refresh rate determining module and the data source signal output module. The field refresh rate determining module is used for determining a current frame field refresh rate corresponding to the video image by adopting a target refresh rate corresponding to each video image partition; and the data source signal output module is used for outputting data source signals to the pixel columns corresponding to the video partitions according to the current frame field refresh rate.
In a specific implementation, the display output device can be applied to a display device, so that the display device can obtain two or more video image partitions by acquiring video images and dividing the video images, so as to determine the frame inserting strategy information of each video image partition according to the original frame rate of each video image partition, and further determine the target refresh rate corresponding to each video image partition based on the frame inserting strategy information corresponding to each video image partition, so as to output display driving signals corresponding to each video image partition according to the target refresh rate corresponding to each video image partition, and enable different areas to realize the effect of smooth moving image quality.
It should be noted that the display device may be formed by two or more physical entities, or may be formed by one physical entity, for example, the display device may be a personal computer (Personal Computer, PC), a liquid crystal display, a television, or the like, which is not particularly limited in this embodiment of the present application.
As shown in fig. 6, an embodiment of the present application provides a display device including a processor 111, a communication interface 112, a memory 113, and a communication bus 114; wherein, the processor 111, the communication interface 112, the memory 113 finish the mutual communication through the communication bus 114; the memory 113 is used for storing a computer program; the processor 111 is configured to implement the steps of the display output method provided in any one of the foregoing method embodiments when executing the program stored in the memory 113.
In one embodiment of the present application, the processor 111 is configured to implement the display output method provided in any one of the foregoing method embodiments when executing the program stored in the memory 113, where the method includes: acquiring a video image; dividing the video image to obtain at least two video image partitions; determining frame inserting strategy information corresponding to each video image partition according to the original frame rate of each video image partition; determining a target refresh rate corresponding to each video image partition based on the frame inserting strategy information; and outputting display driving signals corresponding to the video image partitions according to the target refresh rates corresponding to the video image partitions.
The embodiment of the present application also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the display output method provided in any one of the method embodiments described above.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
From the above description of embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus a general purpose hardware platform, or may be implemented by hardware. Based on such understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the related art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the method described in the respective embodiments or some parts of the embodiments.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A display output method, comprising:
acquiring a video image;
dividing the video image to obtain at least two video image partitions;
Determining frame inserting strategy information corresponding to each video image partition according to the original frame rate of each video image partition;
determining a target refresh rate corresponding to each video image partition based on the frame inserting strategy information;
And outputting display driving signals corresponding to the video image partitions according to the target refresh rates corresponding to the video image partitions.
2. The display output method according to claim 1, wherein determining the frame insertion policy information corresponding to each of the video image partitions according to the original frame rate of each of the video image partitions, respectively, comprises:
identifying an original frame rate for each video image partition;
And determining the frame inserting strategy information corresponding to the original frame frequency and a preset target frame inserting frequency as the frame inserting strategy information for each video image partition.
3. The method of claim 1, wherein the dividing the video image to obtain at least two video image partitions comprises:
Performing subtitle identification on the video image to obtain boundary information of the subtitle;
Performing example segmentation on the video image by utilizing the boundary information to obtain a subtitle region and a background image region;
And determining the subtitle region and the background image region as the video image region.
4. A display output method according to claim 3, wherein said performing subtitle recognition on said video image to obtain boundary information of a subtitle comprises:
Judging whether the video image is a picture with a subtitle;
If the video image is a picture with a subtitle, inputting the video image into a preset subtitle identification model to obtain subtitle coordinate information output by the subtitle identification model;
And determining boundary information of the caption by adopting the caption coordinate information.
5. The display output method according to claim 1, wherein determining a target refresh rate corresponding to each video image partition based on the frame insertion policy information comprises:
Determining the line refreshing frequency of each video image partition by adopting the frame inserting strategy information corresponding to each video image partition;
for each video image partition, the row refresh frequency is determined to be the target refresh rate.
6. The display output method according to any one of claims 1 to 5, wherein outputting the display drive signals corresponding to the respective video image partitions at the target refresh rates corresponding to the respective video image partitions, respectively, comprises:
Acquiring display resolution;
A target pixel row corresponding to each video image partition based on the display resolution;
and outputting the display driving signals to the target pixel row according to the target refresh rate for each video image partition.
7. The display output method according to claim 6, further comprising:
determining a current frame field refresh rate corresponding to the video image by adopting a target refresh rate corresponding to each video image partition;
and outputting a data source signal to the pixel columns corresponding to the video partitions according to the current frame field refresh rate.
8. A display output device, comprising:
the video image acquisition module is used for acquiring video images;
The video image segmentation module is used for segmenting the video image to obtain at least two video image partitions;
the frame inserting strategy determining module is used for determining frame inserting strategy information corresponding to each video image partition according to the original frame rate of each video image partition;
The target refresh rate determining module is used for determining a target refresh rate corresponding to each video image partition based on the frame inserting strategy information;
and the driving output module is used for outputting display driving signals corresponding to the video image partitions according to the target refresh rates corresponding to the video image partitions.
9. A display device, characterized by comprising: the device comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus;
a memory for storing a computer program;
a processor for implementing the steps of the display output method according to any one of claims 1 to 7 when executing a program stored on a memory.
10. A computer storage medium storing computer executable instructions for performing the steps of the display output method according to any one of claims 1-7.
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