CN116939255A

CN116939255A - Video image display method, device and storage medium

Info

Publication number: CN116939255A
Application number: CN202311190404.7A
Authority: CN
Inventors: 魏巍; 殷建东
Original assignee: Suzhou HYC Technology Co Ltd
Current assignee: Suzhou HYC Technology Co Ltd
Priority date: 2023-09-15
Filing date: 2023-09-15
Publication date: 2023-10-24
Anticipated expiration: 2043-09-15
Also published as: CN116939255B

Abstract

The disclosure relates to a video image display method, a video image display device and a storage medium. The method relates to the technical field of video image processing, and comprises the following steps: acquiring video images displayed in transmission nodes in each transmission channel; determining a load value of each transmission node when the video image is displayed based on the type of the video image; and in response to the load value not meeting the preset requirement, adjusting the load parameter in each transmission channel according to the topology structure corresponding to each transmission node in the transmission channel and the load value when each transmission node displays the video image, so as to instruct each transmission node to display the video image according to the adjusted load parameter in the corresponding transmission channel, wherein the adjusted load parameter is used for enabling the load value when the transmission node in each transmission channel displays the video image to meet the preset requirement. By adopting the method, the load can be accurately adjusted, and the load balance is ensured, so that the display brightness of the video image cannot be different.

Description

Video image display method, device and storage medium

Technical Field

The present disclosure relates to the field of video image processing technologies, and in particular, to a method and apparatus for displaying a video image, a computer device, and a storage medium.

Background

Currently, video image processing systems based on FPGAs (Field Programmable Gate Array, field programmable gate arrays) and embedded systems, in particular, video image processing systems with VESA (VideoElectronics Standards Association, digital video interface standard), MIPI (Mobile Industry Processor Interface, mobile industry processor interface standard), HDMI (HighDefinition Multimedia Interface, high definition multimedia interface standard) and the like are involved to drive and display panels and terminals such as liquid crystal (LCD, liquid Crystal Display), organic Light-emitting diode (OLED), and the like, and when supporting multi-channel display, the number of nodes and/or video terminals on different channels, the performance of parameters, such as resolution, bit depth of video data (BPC, bits Per Component), refresh rate, lane number, and the like, determine the load amount on each channel, i.e., the traffic of signaling and video data, significantly varies.

However, when nodes and/or video terminals in multiple channels support both standard dynamic range (SDR, standard Dynamic Range) and high dynamic range (HDR, high Dynamic Range) images, it is difficult to adjust the backlight of the HDR image, and thus adjust its load, resulting in load imbalance, which can cause differences in the display brightness of the video image.

Disclosure of Invention

In view of the foregoing, it is desirable to provide a video image display method, apparatus, computer device, and storage medium that can accurately adjust a load and ensure load balancing so that there is no difference in display brightness of video images.

In a first aspect, the present disclosure provides a method of displaying a video image. The method is applied to a video source, the video source is connected with a transmission node through a transmission channel, and the method comprises the following steps:

acquiring video images displayed in transmission nodes in each transmission channel;

determining a load value of each transmission node when the video image is displayed based on the type of the video image;

and in response to the load value not meeting the preset requirement, adjusting the load parameter in each transmission channel according to the topology structure corresponding to each transmission node in the transmission channel and the load value when each transmission node displays the video image, so as to instruct each transmission node to display the video image according to the adjusted load parameter in the corresponding transmission channel, wherein the adjusted load parameter is used for enabling the load value when the transmission node in each transmission channel displays the video image to meet the preset requirement.

In one embodiment, the determining, based on the type of the video image, a load value when each of the transmission nodes displays the video image includes:

determining a first load weight of the standard dynamic range image based on a predetermined first target weight in response to the type of the video image being the standard dynamic range image;

determining a first load value when each transmission node displays the standard dynamic range image according to the first load weight of the standard dynamic range image;

determining a low dynamic range image constituting the high dynamic range image in response to the type of the video image being a high dynamic range image;

and determining a second load value when each transmission node displays the high dynamic range image based on at least one low dynamic range image and a preset weight value of each low dynamic range image, wherein the preset weight value of each low dynamic range image is determined at least based on the influence of the low dynamic range image on the high dynamic range image.

In one embodiment, the determining, based on at least one of the low dynamic range images and a weight value preset for each low dynamic range image, a second load value when each transmission node displays the high dynamic range image includes:

Dividing a display panel of the transmission node into a plurality of sub-areas; wherein a plurality of sub-regions are used for displaying at least one of the low dynamic range images, the sub-regions comprising at least: a display area and/or an overlap area;

calculating to obtain a load value of each sub-area based on a sub-weight value preset in each sub-area;

determining a load value when the display panel displays at least one of the low dynamic range images based on the load value of each display region and the load value of the overlap region;

and determining a second load value when each transmission node displays the high dynamic range image based on the load value when at least one low dynamic range image and a preset weight value of the low dynamic range image.

In one embodiment, the determining the load value when the display panel displays at least one of the low dynamic range images based on the load value of each display area and the load value of the overlapping area includes:

calculating a load sum of the load values of the display areas;

and determining the load value when the display panel displays at least one low dynamic range image by subtracting the load value of the overlapped area from the load sum.

In one embodiment, the dividing the display panel of the transmission node into a plurality of sub-areas includes:

determining a display area in the display panel based on a coordinate value preset in the display panel;

or determining a start coordinate and an end coordinate in the display panel, and determining an initial display area in the display panel based on the start coordinate and the end coordinate;

determining an offset display area in the display panel based on a preset offset, a start coordinate and an end coordinate; determining a display area in the display panel based on the initial display area and the offset display area;

determining a coordinate margin of an overlapping portion in the display area;

and determining an overlapping area based on the coordinate allowance and the corresponding coordinates of the display area.

In one embodiment, the method further comprises:

and responding to the load value not meeting the preset requirement, and carrying out local dimming or backlight adjustment on the transmission nodes based on the load value of each transmission node so that the adjusted load value of the transmission node meets the preset requirement.

In one embodiment, the local dimming or backlight adjustment of the transmission node includes: and carrying out local adjustment or backlight adjustment on the transmission node based on the configuration of the register.

In one embodiment, the adjusting the load parameter in each transmission channel according to the topology structure corresponding to each transmission node in the transmission channel and the load value when each transmission node displays the video image includes:

determining a load adjustment threshold corresponding to each load parameter, wherein the load parameters comprise: at least one of bit depth, number of physical channels, refresh rate, resolution of the video data;

and adjusting the corresponding load parameters according to the topological structure corresponding to each transmission node in each transmission channel based on the load adjustment threshold value and the load value corresponding to each load parameter.

In one embodiment, the video source communicates with the transmitting node using an adjust equalization frame; the adjustment equalization frame is obtained based on a standard frame; the adjusting the equalization frame includes:

the balance starting time slot is used for confirming whether load parameters are adjusted, starting an adjustment balance frame when the load parameters are adjusted, and starting a standard frame when the load parameters are not required to be adjusted;

the equalization adjustment time slot is used for confirming whether to adjust the load parameter in each transmission channel and confirming whether to perform local dimming or backlight adjustment on the transmission node;

An adjustment threshold determining time slot for determining a load adjustment threshold corresponding to each load parameter;

the load parameter adjustment time slot is used for adjusting the corresponding load parameter based on a load adjustment threshold value and the load value corresponding to each load parameter;

and the feedback time slot is used for feeding back the result of local dimming or backlight adjustment and the result of displaying the video image by each transmission node through adjusting the corresponding load parameter.

In one embodiment, the video source and the transmission node communicate using an adjustment equalization signaling, the adjustment equalization signaling comprising:

an equalization enable field for confirming whether to adjust the load parameter;

the balance adjustment field is used for confirming whether to adjust the load parameter in each transmission channel and confirming whether to perform local dimming or backlight adjustment on the transmission node;

an adjustment threshold determining field, configured to determine a load adjustment threshold corresponding to each load parameter;

a load parameter adjustment field, configured to adjust a corresponding load parameter based on a load adjustment threshold value and the load value corresponding to each load parameter;

and the feedback field is used for feeding back the result of local dimming or backlight adjustment and the result of displaying the video image by each transmission node through adjusting the corresponding load parameter.

In a second aspect, the present disclosure also provides a display device for video images. The device comprises:

the device is applied to a video source, the video source is connected with a transmission node through a transmission channel, and the device comprises:

the video image acquisition module is used for acquiring video images displayed in the transmission nodes in each transmission channel;

the load value determining module is used for determining a load value when each transmission node displays the video image based on the type of the video image;

and the load parameter adjusting module is used for adjusting the load parameter in each transmission channel according to the topological structure corresponding to each transmission node in the transmission channel and the load value when each transmission node displays the video image in response to the load value not meeting the preset requirement so as to instruct each transmission node to display the video image according to the adjusted load parameter in the corresponding transmission channel, wherein the adjusted load parameter is used for enabling the load value when the transmission node in each transmission channel displays the video image to meet the preset requirement.

In a third aspect, the present disclosure also provides a computer device. The computer device comprises a memory storing a computer program and a processor implementing the steps of any of the method embodiments described above when the processor executes the computer program.

In a fourth aspect, the present disclosure also provides a computer-readable storage medium. The computer readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of any of the method embodiments described above.

In a fifth aspect, the present disclosure also provides a computer program product. The computer program product comprises a computer program which, when executed by a processor, implements the steps of any of the method embodiments described above.

In the above embodiments, when the transmission node displays a video image, the video image displayed in the transmission node in each transmission channel may be acquired. Since the types of the video images are different, the load parameters used when the video images are displayed are also different, so that the load values are different, the load value when each transmission node displays the video images can be determined based on the types of the video images. When the load value does not meet the preset requirement, the display effect needs to be ensured, and the load parameter in each transmission channel can be adjusted by utilizing the topology structure corresponding to each transmission node in the transmission channel and the load value when each transmission node displays the video image. The transmission node displays the video image according to the adjusted load parameter, and the load value of the transmission node is ensured to meet the preset requirement. The load parameters are adjusted, so that the load value is adjusted accurately, load balance is guaranteed, the video image is guaranteed not to be different in display brightness and other display aspects, and the display effect is guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the prior art, the drawings that are required in the detailed description or the prior art will be briefly described, it will be apparent that the drawings in the following description are some embodiments of the present disclosure, and other drawings may be obtained according to the drawings without inventive effort for a person of ordinary skill in the art.

FIG. 1 is a schematic view of an application environment of a method for displaying video images in one embodiment;

FIG. 2 is a schematic diagram of a video image processing system in one embodiment;

FIG. 3 is a flow chart of a method for displaying video images according to one embodiment;

FIG. 4A is a schematic diagram of a transmitting node displaying video images in one embodiment;

FIG. 4B is a schematic diagram of a topology of a transmitting node in one embodiment;

FIG. 5 is a flow chart of step S204 in one embodiment;

FIG. 6 is a flow chart of step S308 in one embodiment;

FIG. 7 is a schematic illustration of a sub-region in one embodiment;

FIG. 8 is a flow chart of step S406 in one embodiment;

FIG. 9 is a flow chart of step S402 in one embodiment;

FIG. 10 is a schematic diagram of start coordinates, end coordinates, and coordinate residuals in one embodiment;

FIG. 11 is a flowchart illustrating the step S206 in one embodiment;

FIG. 12 is a schematic diagram of a standard frame structure in one embodiment;

FIG. 13 is a schematic diagram of an adjustment equalization architecture in one embodiment;

FIG. 14 is a flowchart of a method for displaying video images according to another embodiment;

FIG. 15 is a block diagram showing the structure of a display device of a video image in one embodiment;

FIG. 16 is a schematic diagram of the internal structure of a computer device in one embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present disclosure.

It should be noted that the terms "first," "second," and the like in the description and claims herein and in the foregoing figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, apparatus, article, or device that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or device.

In this document, the term "and/or" is merely one association relationship describing the associated object, meaning that three relationships may exist. For example, a and/or B may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

As described in the background art, in the conventional technology, because the HDR technology adopts low dynamic range (LDR, low Dynamic Range) images with different exposure times, by synthesizing the LDR image with the best detail corresponding to each exposure time into the final HDR image, it is difficult to adjust the overall backlight (Full-array black light) in the HDR image display to achieve the purpose of adjusting the power and thus the load thereof, which results in that when the video source sends signaling and video data to multiple channels, the load imbalance occurs and the transmission power is greatly related, so that the received power of the nodes and/or the video terminals of the different channels have significant differences, thereby causing the difference in display brightness, and also causing phenomena such as jitter and flicker of the display, and significantly reducing the display experience.

Accordingly, to solve the above-mentioned problems, an embodiment of the present disclosure provides a method for displaying a video image, which can be applied to an application environment as shown in fig. 1. Wherein the video source 102 is directly or indirectly connected to the plurality of transmission nodes 104 through transmission channels, respectively. The video source 102 may acquire video images displayed in the transmission node 104 of each transmission channel. The video source 102 determines a load value for each of the transmission nodes 104 when displaying the video image based on the type of video image. In response to the load value not meeting the preset requirement, the video source 102 may adjust a load parameter in each transmission channel according to the topology structure corresponding to each transmission node 104 in the transmission channel and the load value when each transmission node 104 displays the video image, so as to instruct each transmission node to display the video image according to the adjusted load parameter in the corresponding transmission channel. The adjusted load parameters are used for enabling the load value of the transmission nodes in each transmission channel when the transmission nodes display video images to meet preset requirements.

The video image display method provided by the embodiment of the disclosure can be applied to a video image processing system. As shown in fig. 2, the video image processing system may include: the system comprises an embedded control module, an FPGA module, an external storage module, a rapid storage module, a peripheral module, a video interface physical layer realization module and a video transmission link.

The embedded control module can use any embedded chip and system, and is mainly responsible for initiating signaling interaction, such as reading/writing a register, starting/closing a video display module and module, peripheral control, video display module parameter setting and the like. The FPGA module is mainly responsible for realizing the implementation parts which need a large amount of data processing and low round trip delay (latency), such as storage control, peripheral control, video interface IP core implementation and the like. The external storage module is mainly responsible for storing the original data stream of the video image to be displayed in the video image processing system, and storage media such as NandFlash, SSD are applied to the part, but not limited to the part. The fast memory module is used in the implementation process of the FPGA module requiring a large amount of data processing and low round trip delay (latency), and the module for storing the latency for reducing the latency is applied to a fast and low latency physical device, such as DDR3, but not limited thereto. Peripheral modules including, but not limited to, GPIO (General-purpose input/output), UART (Universal AsynchronousReceiver/Transmitter, universal asynchronous receiver Transmitter), USB (Universal Serial Bus ), network ports, and the like. The video interface physical layer implementation module is mainly responsible for the physical layer implementation required for driving the display module, such as, but not limited to, TX/RX (Transmitter/Receiver) -PHY of DisplayPort, DPHY of MIPI, etc.

Further, the FPGA module comprises a bus interaction module, an MCU (Microcontroller Unit, micro control module) video stream preprocessing module, a video data stream transmission control module, a clock control module, an embedded soft core control module, a bus controller module, an internal storage controller module, an external control module, a display clock generator module, a video time sequence controller module and a video interface IP core module. The bus interaction module is mainly responsible for the functions of selection, decision and the like of all other modules connected to the bus interaction module. The MCU video stream preprocessing module is mainly responsible for preprocessing and converting the video data stream input from the external storage module according to the format and the parameter type set by the system so as to facilitate the processing of the later stage. The video data stream transmission control module is mainly responsible for controlling the time sequence, parameters and the like of the data stream after the data stream pretreatment and conversion. The clock control module is mainly responsible for generating and controlling a global clock in the video image processing system. The embedded soft core control module is a control core of the FPGA module and is mainly responsible for the core functions of time sequence control, parameter configuration, physical process realization and the like of all modules in the FPGA module, and the embedded soft core control module can be used in the realization of the time sequence control, parameter configuration, physical process realization and the like, such as Xilinx MicroBlaze and the like, but is not limited to the realization of the time sequence control, parameter configuration, physical process realization and the like. The bus controller module is mainly responsible for controlling all modules connected with the bus interaction module, but is not limited to the bus interaction module. The video image processing module is mainly responsible for mode conversion, time sequence control and the like of the video image data stream corresponding to the video interface IP core module, but is not limited to the video image processing module. The internal memory controller module is mainly responsible for controlling the flash memory module, including writing/reading of data stream, frame control, etc., but not limited thereto. The peripheral control module is mainly responsible for controlling all peripheral modules, including the starting/closing of peripheral, the control of working mode and the like, but is not limited thereto. The display clock generator module is mainly responsible for time sequence control of all the IP core modules and the physical layer realization modules of the video interface, but is not limited to the time sequence control. The video time sequence controller module is mainly responsible for processing such as data conversion and time sequence control when the data input from the video image processing module is transmitted to the video interface IP core module, but is not limited to the processing.

The video transmission link may include: video source (video transmission source), transmission node (embedded physical repeater, cable with active ID, detachable physical repeater, video receiving end, etc.), but is not limited thereto. In some embodiments disclosed, the transmission node may comprise one or more of a node, a video device, a video source, depending on the context.

In one embodiment, as shown in fig. 3, a method for displaying a video image is provided, which is described by taking as an example that the method is applied to the video source 102 in fig. 1 or the video source in fig. 2, and includes the following steps:

s202, acquiring video images displayed in transmission nodes in each transmission channel.

Wherein the transmission channel may in some embodiments of the present disclosure generally be a connection channel between the transmission node and the video source. The video image may include: SDR images, HDR images, LDR images, etc.

Specifically, the video source may send the video image to be displayed to the transmission node via the transmission channel. When the transmission node starts displaying the video image, the video source may acquire the video image displayed in the transmission node in each transmission channel.

S204, determining a load value when each transmission node displays the video image based on the type of the video image.

Specifically, in general, the types of video images are different, and various load parameters used by the transmission node at the time of display are also different. The load parameters may include, for example: resolution, bit depth of video data (BPC, bits Per Component), refresh rate, lane (number of physical channels), etc. The parameter performance generally determines the load value of each transmitting node on the display of video data. The load value at which each transmission node displays a video image can thus be determined in a manner selected to match the type of video image, depending on the type of video image.

As an example, for example, the video image type includes a type a and a type B, and when the transmission node displays the video image of the type a, the load value at the time of transmitting the video image of the type a of the node can be calculated in a manner corresponding to the type a. And when the transmission node displays the video image of the B type, the load value when the video image of the B type is transmitted can be calculated by using the mode corresponding to the B type. The load value for displaying different types of video images may be calculated based on resolution, refresh rate, number of pixels per frame or per second, etc., and may also be calculated based on some other way.

Further, as shown in fig. 4A, SDR represents a transmission node or video device that requires standard dynamic range image display, such as transmission node 2, video device 4, video device 5, and video device 11.HDR represents that a transmission node or video device needs to perform high dynamic range image display, such as transmission node 1, video device 2, etc. In displaying an SDR image or an HDR image, the transmitting node or video device needs to display using the corresponding parameters, i.e. parameter 1, parameter 2, parameter 3 and parameter 4. Parameters may include, but are not limited to: resolution, bit depth of video data (BPC), refresh rate, lane number, etc.

S206, in response to the load value not meeting the preset requirement, according to the topology structure corresponding to each transmission node in the transmission channel and the load value when each transmission node displays the video image, adjusting the load parameter in each transmission channel to instruct each transmission node to display the video image according to the adjusted load parameter in the corresponding transmission channel, wherein the adjusted load parameter is used for enabling the load value when the transmission node in each transmission channel displays the video image to meet the preset requirement.

The preset requirements may include any one of the following: 1. the load values of the transmission nodes in each transmission channel are the same, or the difference between the load values of the transmission nodes in each transmission channel is within a preset range, so that the balance of the transmitting power and the performance can be ensured as long as the load values on each transmission channel are basically kept consistent for the video source. 2. The load values of the transmission nodes of different levels (different levels on the same channel are kept basically consistent as far as possible) in each transmission channel are the same, or the difference value between the load values of the transmission nodes is in a preset range, so that the transmitting power and the receiving power on a single transmission channel and the performance can not be enhanced or reduced, and the display effect is ensured. 3. The load values of the transmission nodes in the same level in each transmission channel are the same, or the difference value between the load values of the transmission nodes is in a preset range, so that the display brightness in the same level is the same, and the phenomena of display jitter, flicker and the like are avoided. Fig. 4B is a schematic diagram of a topology between a transmission node and a video source according to an embodiment of the disclosure. The topologies referred to in this disclosure may include the following classes: video source→node 1→video device 1, video device 2, and video device 3. Wherein the video apparatus 3 may also be directly connected to a video source. I.e. video source→video apparatus 3. Video source→node 2→video device 4 and video device 5. Video source→node 3→video device 6, video device 7, video device 8, video device 9, and video device 10. Video source→video device 6. Video source→node 4→node 5→video device 11. The data transfer process involved in this embodiment may send video images to various nodes or video devices for a video source. Each node issues video images to each video device. Each video device or node displays video data. In some embodiments, the transmission node may include one or more of a node, a video device, and a video source. Taking the video device 3 as an example, two topologies of the video device 3 exist, respectively: 1. video source→node 1→video device 3. 2. Video source→video apparatus 3. As shown in fig. 4B, the same hierarchy in the same transmission channel may be used for the video apparatus 1, the video apparatus 2, and the video apparatus 3 in the transmission channel 1. Thus, the preset requirements may be: 1. at least the load values of the transmission nodes in transmission channel 1 and transmission channel 2 are guaranteed to be the same. 2. The load values of the various transmission nodes in the transmission channel 1 are guaranteed to be the same. 3. The load values of the video apparatus 1, the video apparatus 2, and the video apparatus 3 in the transmission channel 1 are ensured to be the same. Typically, the topology level is defined relative to the location of the video source, the more levels the longer the link to the video source, i.e., the greater transmit power and receive power are required to reach the node and/or video terminal; and vice versa. In addition, the greater the number of transmission nodes in each hierarchy, the greater the transmit power required to transmit the video image, and the ability to cover all transmission nodes on that hierarchy, and vice versa.

Specifically, when the load value does not meet the preset requirement, for example, the difference between the load values of the transmission nodes in the transmission channel 1 and the transmission channel 2 is not within the preset range, it is determined that the transmission nodes in the transmission channel 1 and the transmission channel do not meet the preset requirement. The topology of each transmission node in transmission channel 1 and transmission channel 2 may be based. A transmission node belonging to transmission channel 1 is determined, and a transmission node belonging to transmission channel 2 is determined. And then, adjusting the load parameters according to the load values of the transmission nodes in the transmission channel 1 and the load values of the transmission nodes, so that after each transmission node in the transmission channel 1 displays the video image according to the adjusted load parameters, the load value of each transmission node in the transmission channel 1 meets the preset requirement (the load values of the transmission nodes in the transmission channel 1 are basically the same). Then, the load parameters can be adjusted according to the load values of the transmission nodes in the transmission channel 2, so that after each transmission node in the transmission channel 2 displays the video image according to the adjusted load parameters, the load value of each transmission node in the transmission channel 2 meets the preset requirement (the load values of the transmission nodes in the transmission channel 2 are basically the same). The load parameters in each transmission channel can be adjusted according to the load values of the transmission nodes in the transmission channel 1 and the transmission channel 2, so that after each transmission node in the transmission channels 1 and 2 displays the video image according to the adjusted load parameters, the load value of each transmission node in the transmission channels 1 and 2 meets the preset requirement (the load values of the transmission nodes in the transmission channel 1 and the transmission channel 2 are basically the same).

In the method for displaying video images, when the transmission node displays the video images, the video images displayed in the transmission node in each transmission channel can be acquired. Since the types of the video images are different, the load parameters used when the video images are displayed are also different, so that the load values are different, the load value when each transmission node displays the video images can be determined based on the types of the video images. When the load value does not meet the preset requirement, the display effect needs to be ensured, and the load parameter in each transmission channel can be adjusted by utilizing the topology structure corresponding to each transmission node in the transmission channel and the load value when each transmission node displays the video image. The transmission node displays the video image according to the adjusted load parameter, and the load value of the transmission node is ensured to meet the preset requirement. The load parameters are adjusted, so that the load value is adjusted accurately, load balance is guaranteed, the video image is guaranteed not to be different in display brightness and other display aspects, and the display effect is guaranteed.

In one embodiment, as shown in fig. 5, the determining, based on the type of the video image, a load value when each of the transmission nodes displays the video image includes:

S302, determining a first load weight of the standard dynamic range image based on a predetermined first target weight in response to the type of the video image being the standard dynamic range image.

Wherein the standard dynamic range image may be an SDR image, which is a Standard Dynamic Range image format, the brightness range of the image is moderate, and bright or dark details are not highlighted too much.

Specifically, in general, when the transmission node displays the SDR image, a large difference in load or the like does not occur, and therefore, when the type of the video image is the SDR image, in order to facilitate determination of the load amount, a first target weight set in advance may be used as a reference, and further, a first load weight of the SDR image may be determined, and in addition, in order to facilitate the determination, the first target weight may be set to 1, and the first target weight may be set to the first load weight. It is to be understood that the foregoing is only illustrative.

S304, according to the first load weight of the standard dynamic range image, determining a first load value when each transmission node displays the standard dynamic range image.

Specifically, after the first load weight is determined, the first load weight may be determined as the first load value when each transmission node displays the SDR image, and for example, the first load value may also be set to 1.

And S306, determining a low dynamic range image forming the high dynamic range image in response to the video image type being the high dynamic range image.

The high dynamic range image may be an HDR image, which is High Dynamic Range, which is a special image format that can more accurately represent the brightness and color details in the image. HDR images have a higher range of brightness than traditional SDR images, and can display more details of bright and dim areas. It uses more bits to represent the color value of each pixel, typically using a color depth of 10 bits, 12 bits or more. HDR images typically contain a larger dynamic range, enabling more detail to be displayed, providing a more realistic, lively, and lifelike visual experience. The low dynamic range image may be an LDR image, referred to as Low Dynamic Range, which is a common image format, with a relatively narrow range of brightness that does not display a wide range of bright and dim details.

In particular, since the HDR image is synthesized based on a plurality of LDR images, the video source can determine the LDR image used in generating the HDR image.

And S308, determining a second load value when each transmission node displays the high dynamic range image based on at least one low dynamic range image and a preset weight value of each low dynamic range image, wherein the preset weight value of each low dynamic range image is determined at least based on the influence of the low dynamic range image on the high dynamic range image.

Specifically, one or more low dynamic range images and preset weight values corresponding to the one or more low dynamic range images may be selected to determine the second load value when each transmission node displays the high dynamic range image. The second load value may be calculated, for example, using any one of the load parameters in the one or more low dynamic range images and a preset weight value corresponding to the one or more low dynamic range images.

In general, the second load value when the transmission node displays the high dynamic range image can be accurately calculated by using all the low dynamic range images and the weights preset by the low dynamic range images. And the second load value is calculated by using a part of low dynamic range images and preset weights corresponding to the part of low dynamic range images, so that the calculation complexity can be reduced. Therefore, the video source can select a proper number of low dynamic range images according to the actual scene to calculate the second load value, so that the accuracy and the complexity of the calculated second load value are reasonably compromised, the accuracy can be ensured, and the complexity can be reduced. Since the HDR image is generated using a plurality of LDR images, each LDR image generally affects data such as contrast and gray level of the HDR image, different weight values can be set according to the extent to which the LDR image affects the gray level and contrast of the HDR image. In addition to this, some LDR images play an important role in the display of HDR, and the weight values of these LDR images will typically be set larger. Typically, the preset weight value of each LDR image is smaller than 1, and the sum of the weight values of all LDR images is equal to 1. Thus, the weight values of the different LDR images may be used to calculate the second load value of the HDR image, and the effect thereof on the data of the HDR image contrast, gray scale, etc. may also be determined by the weight value of each LDR image. The weight value of each LDR image is set to be the same, so that the calculation complexity is reduced, the weight values of the LDR images are set to be different, the second load value can be accurately calculated, and the accuracy of load value calculation is improved. Therefore, the video source can select a reasonable compromise according to the actual situation, so that the result of the second load value calculation is accurate, and the calculation complexity can be reduced.

In some exemplary embodiments, the second load value may be calculated using the following formula:

wherein, the liquid crystal display device comprises a liquid crystal display device,for the second load value, a is the first load weight when SDR images, n is the number of LDR images used in the calculation of HDR load values, b _i Is the weight value represented by the LDR image in the HDR image.

It should be noted that, in order to effectively reduce the calculation difficulty, for the SDR mode, a single frame estimation is adopted to adjust the overall backlight (black light) or the local dimming (local dimming), that is, only a mode of fixing a load weight value in a region is adopted for processing, so as to adjust the corresponding load parameter; for HDR, only a whole backlight (Blacklight) mode may be adopted, or local dimming (local dimming) may be calculated and realized by using a smaller frame number average mode, that is, the value of the number m of sub-regions is 1, and the LDR image is treated as one region, so as to adjust the load parameter of one region, and the whole backlight (Blacklight) mode is adopted; the value of the sub-area m may be set to be greater than 1, and the LDR image may be divided into a plurality of sub-areas, so as to implement local dimming (local dimming) processing (adjusting load parameters of the plurality of sub-areas).

In the present embodiment, since the types of video images are different, the load value can be calculated in different manners according to the types of different video images. When the video image is a high dynamic range image, the load value when the high dynamic range image is displayed can be accurately calculated according to the low dynamic range image used when the high dynamic range image is generated, so that the display effect of the subsequent high dynamic range image is ensured.

In one embodiment, as shown in fig. 6, the determining, based on at least one of the low dynamic range images and the weight value preset for each low dynamic range image, the second load value when each transmission node displays the high dynamic range image includes:

s402, dividing a display panel of the transmission node into a plurality of sub-areas; wherein a plurality of sub-regions are used for displaying at least one of the low dynamic range images, the sub-regions comprising at least: display area and/or overlap area.

The display panel may be a panel for displaying video images or video data in a transmission node in general. The overlapping area may be a display area where an overlap exists.

In particular, the display panel of the transmission node may be divided into a plurality of sub-areas. The plurality of sub-areas are used to display a part of the low dynamic range image, and the plurality of sub-areas display the low dynamic range image together. As shown in fig. 7, the display panel may be divided into A, B, C, D, E five sub-regions, which may be display regions, and overlapping portions exist in the C and D regions, so that X1 may overlap the overlapping regions. In addition, in general, after the display panel is divided into the sub-regions, all the portions in the display panel are divided into the sub-regions, so that the re-division of the divided/undivided regions can be avoided, and the subsequent calculation is not difficult. Of course, depending on the actual computing requirements, for example, only a part of the display panel is normally used to display the image, and another part is not used to display the current video image, the part of the display panel may be divided into sub-areas. The person skilled in the art can flexibly choose to divide the entire area of the display panel into sub-areas or to divide a partial area in the display panel into sub-areas.

S404, calculating to obtain the load value of each sub-area based on the preset sub-weight value of each sub-area.

Wherein the sub-weight value may be determined according to the location of each sub-region, or other factors of the sub-regions. The sub-weight values for each sub-region may or may not be the same.

Specifically, the load value of each sub-area can be calculated according to the preset sub-weight value of each sub-area and the load parameter of each area. The load value of each sub-region may include: the load value of the area and the load value of the overlapping area are displayed.

S406, determining a load value when the display panel displays at least one low dynamic range image based on the load value of each display area and the load value of the overlapped area.

Specifically, since the display area includes the overlapping area, the load value of the overlapping area can be calculated and then subtracted from the load value of the display area, so that the load value of the overlapping area is not repeatedly calculated, and finally the load value when the display panel of the transmission node displays the low dynamic range image is obtained.

S408, determining a second load value when each transmission node displays the high dynamic range image based on the load value when at least one low dynamic range image and the preset weight value of the low dynamic range image.

Specifically, after the load value when the low dynamic range image is displayed is calculated, because the HDR image is generated by the LDR image, the displayed LDR image load value may be multiplied by the weight preset by the LDR image to perform weighted summation, so as to obtain the second load value when the final transmission node displays the high dynamic range image.

wherein LW _HDR Is an HDR image pairA second load value, m, is the number of sub-areas dividing each display panel, c _j Is the sub-weight value corresponding to each sub-region. Typically, each sub-region corresponds to a sub-weight value c _j Less than b _i 。

In this embodiment, the display panel is divided into the sub-regions, so that the load value of the low dynamic range image can be accurately calculated based on each sub-region, and the second load value can be accurately calculated.

In one embodiment, as shown in fig. 8, the determining the load value when the display panel displays at least one low dynamic range image based on the load value of each display area and the load value of the overlapping area includes:

s502, calculating the load sum of the load values of the display areas.

S504, the load and the load value of the overlapped area are subtracted, and the load value when the display panel displays at least one low dynamic range image is determined.

Specifically, after the load value of the display area is calculated, the load value of the display area may be added to obtain the load sum. Since there is also an overlap region in the display region, incorporating the overlap region into the calculation of the load value may affect the accuracy of the resulting load value. Therefore, the load and the load value of the overlapping area may be subtracted to eliminate the influence of the overlapping area, thereby determining the load value when the display panel displays at least one of the low dynamic range images.

In some exemplary embodiments, continuing with the description of fig. 7, the load values for display area a, display area B, display area C, display area D, and display area E may be calculated and then added to obtain a load sum. The load value of the overlap region X1 may also be calculated, and since the overlap region X1 is included in the display region C and the display region D, the load value of the overlap region X1 may be subtracted from the load sum by calculating the load sum twice, once in the display region C and once in the display region D, in order to eliminate the influence of the overlap region X1.

In this embodiment, when calculating the low dynamic range image, since there is an overlapping area, the overlapping area affects the accuracy of the load value of the low dynamic range image, and the load value of the overlapping area are subtracted to eliminate the influence of the overlapping area and ensure the accuracy of the load value of the low dynamic range image.

In one embodiment, as shown in fig. 9, the dividing the display panel of the transmission node into a plurality of sub-areas includes:

s602, determining a display area in the display panel based on a coordinate value preset in the display panel.

The coordinate values may be actual coordinate values in the display panel.

Specifically, a plurality of coordinate values may be set in advance, and a display area in the display panel may be determined based on the set coordinate values. For example, the display panel may have a size of 10×10, the first coordinate may be (0, 0), the second coordinate may be (5, 0), the third coordinate may be (5, 5), and the fourth coordinate may be (0, 5), and then 1 display area in the display panel may be determined according to the four coordinates.

Alternatively, S604, a start coordinate and an end coordinate are determined in the display panel, and an initial display area in the display panel is determined based on the start coordinate and the end coordinate.

Specifically, the start and end coordinates may be selected in the display panel, and typically the start and end coordinates are not in the same row and column. The initial display area is then determined using the start and end coordinates. Typically, the start and end coordinates are positive integers.

In some exemplary embodiments, as shown in fig. 10, for example, a start coordinate (X0, Y0) and an end coordinate (X1, Y1). The area in the initial display area may be composed of four points (X0, Y0), (X0, Y1), (X1, Y0).

S606, determining an offset display area in the display panel based on a preset offset, a start coordinate and an end coordinate; and determining a display area in the display panel based on the initial display area and the offset display area.

Specifically, in general, the preset offset may be multiple, that is, the other display areas except the initial display area in the display panel are all determined by using the offset, so that other display areas can be determined according to the number of the offset, and the other display areas may be offset display areas. Further, the offset start coordinate may be obtained by adding the start coordinate to the offset, and the offset end coordinate may be obtained by adding the end coordinate to the offset. An offset display area is determined from the offset start coordinate and the offset end coordinate. And determining the display area in the display panel according to the determined all offset display areas and the initial display area.

In some exemplary embodiments, the offset value may take a positive or negative integer value, when taken, indicating that the corresponding offset display region is to the right and/or lower side of the initial display region; when taking a negative integer value, indicating that the corresponding offset display region is at the left side and/or the upper side of the initial display region; therefore, the offset value is a relative coordinate value, and does not correspond to an actual coordinate value on the panel, and the actual coordinate of the offset display area is calculated as follows:

AZLVCSN(XN0，YN0) = AZLVC0(X0，Y0) + ZLVCON(XN0，YN0)

AZLVCEN(XN1，YN1) = AZLVC0(X0，Y0) + ZLVCON(XN1，YN1)

wherein AZLVCSN (XN 0, YN 0) and AZLVCEN (XN 1, YN 1) are offset start coordinates and offset end coordinates of the nth offset display region to be determined; AZLVC0 (X0, Y0) is a coordinate value in the initial display area; ZLVCON (XN 0, YN 0) and ZLVCON (XN 1, YN 1) are the offset of the nth offset display region with respect to the start coordinate and the offset of the end coordinate of the initial display region.

And S608, determining the coordinate allowance of the overlapped part in the display area.

Where the coordinate residual typically refers to the coordinates of the overlapping portion in the display area.

Specifically, the video image displayed in each display area may be read, and the video image of the overlapping portion may be determined from the read video image, thereby determining the coordinate margin. The coordinate margin may be determined using the addition of a specified number of coordinate values of the display area, for example, video data of 5 row/column coordinate values is read more at a time.

And S610, determining an overlapping area based on the coordinate allowance and the corresponding coordinates of the display area.

In particular, the coordinate residual is typically used to demarcate the overlap region. Accordingly, a display region where the coordinate margin is generated can be determined, and the overlapping region can be determined based on the coordinates of the display region and the coordinate margin.

In some exemplary embodiments, as shown in FIG. 10, the coordinate residuals (ΔX, ΔY) are used to demarcate the overlap regions where the video source will store the overlap regions where no load value calculation is needed; the video source uses the coordinate allowance to read video data from a plurality of load value calculation areas to be partitioned, compares the stored video data of the overlapping area appointed by the coordinate allowance part to confirm the validity of the video data, if the video data are consistent, the video data of the load value calculation areas to be partitioned are valid, otherwise, the video source considers that the video data are invalid, and the coordinate area needs to be determined again, and then the overlapping area needs to be determined again.

The overlapping area is determined by the coordinates and the coordinate offset of the coordinate allowance (delta X, delta Y) and the load value calculation area to be partitioned, the coordinate allowance is always a positive integer value, and the size of the overlapping area is calculated as follows:

ZLVCOASN(XN0，YN0) = AZLVCSN(XN0，YN0) - ZLVCCRN(ΔXN0，ΔYN0)

ZLVCOAEN(XN1，YN1) = AZLVCEN(XN1，YN1) + ZLVCCRN(ΔXN0，ΔYN0)

Wherein ZLVCOASN (XN 0, YN 0) and ZLVCOAEN (XN 1, YN 1) are the start and end coordinates of the nth overlapping region; ZLVCCRN (Δxn0, Δyn0) is the coordinate margin of the nth overlapping region.

In this embodiment, the display panel can be accurately divided into a plurality of sub-areas by using the coordinate mode, so as to ensure the accuracy of the sub-areas.

In one embodiment, the method further comprises:

Among them, local dimming (local dimming) is a display technology for improving contrast and black appearance of display. The local dimming technique can reduce the backlight brightness in a region where black is desired to be displayed by controlling the brightness of the backlight to divide it into a plurality of regions, thereby increasing the local contrast and black expression. Thus, bright and dark areas can be displayed in the same picture at the same time, and the sense of reality and detail expression capability of the picture are improved. Backlight adjustment (black light) for adjusting the backlight brightness of the transmission node. Backlight adjustment is typically achieved by adjusting the brightness of the backlight or using dynamic backlight control techniques.

Specifically, in the above embodiments, the load parameter is adjusted to further reduce the load value when displaying the video image. When displaying video images, the hardware circuit portion of the transmission node may also affect the load value of the transmission node, for example, the display brightness is too large, so that the power and/or current is too large, and the load value increases. Therefore, when the load value does not meet the preset requirement, local dimming or backlight adjustment can be performed on the transmission node in physical aspect, so as to ensure that the adjusted load value of the transmission node meets the preset requirement.

In some exemplary embodiments, registers may be configured, and local adjustment or backlight adjustment may be performed on the transmission node based on the configuration of the registers. The transmission node and the video source are interacted through the configuration of the register, so that signaling interaction is reduced. The configuration of the registers may be as shown in the register configuration table of table 1.

Table 1 register configuration table

In this embodiment, the load value may be adjusted by using a physical adjustment manner, so that the load value meets a preset requirement, thereby ensuring the display effect.

In one embodiment, as shown in fig. 11, the adjusting the load parameter in each transmission channel according to the topology structure corresponding to each transmission node in the transmission channel and the load value when each transmission node displays the video image includes:

S702, determining a load adjustment threshold corresponding to each load parameter, wherein the load parameters comprise: at least one of bit depth of video data, number of physical channels, refresh rate, resolution.

The bit depth of the video data may be (BPC, bits Per Component), among others. Bits Per Component refers to the number of bits required for the representation of each color channel in image processing. In the RGB color model, each pixel is composed of three color channels of red, green and blue, and each channel has a value ranging from 0 to 255, so that each channel typically requires 8 bits to represent. Therefore, bits PerComponent of the RGB image is typically 8. However, higher numbers of bits are sometimes used to represent each channel to achieve higher color depths and finer image quality.

Specifically, since the load parameters may include multiple types, it is important to adjust which type of load parameter is used when adjusting the load parameters, so as to ensure that the adjusted load value meets the preset requirement. A load threshold corresponding to each load parameter may be set. For example, the load adjustment threshold corresponding to the bit depth of the video data may be a first threshold, the load adjustment threshold corresponding to the number of physical channels may be a second threshold, and so on.

And S704, adjusting the corresponding load parameters according to the topological structure corresponding to each transmission node in each transmission channel based on the load adjustment threshold value and the load value corresponding to each load parameter.

In particular, the adjusted load parameter may be determined according to a relationship between the load adjustment threshold and the load value. And then, the corresponding load parameters are adjusted according to the topological structure corresponding to the transmission node, so that the load value of the transmission node can meet the preset requirement when the video image is displayed according to the adjusted load parameters.

In some exemplary embodiments, the adjusted load parameters may be determined from the table 2 load parameter table.

Table 2 load parameter table

Wherein LCV is the load value. LRT0 is a load adjustment threshold corresponding to the bit depth of video data. LRT1 is a load adjustment threshold corresponding to the number of physical channels. LRT2 is a load adjustment threshold corresponding to the refresh rate, and LRT3 is a load adjustment threshold corresponding to the resolution. LRT4 is the highest preset load adjustment threshold, and LRT0< LRT1< LRT2< LRT3< LRT4 in general. It is to be understood that the foregoing is only illustrative.

In this embodiment, the load adjustment threshold value corresponding to each load parameter and the load value are set to determine the load parameter to be adjusted, so that a plurality of load parameters can be prevented from being adjusted to influence the load value in a large range, the load value can be accurately adjusted according to different load values and the load adjustment threshold value, the adjusted load value is ensured to meet the preset requirement, and the display effect is ensured.

In one embodiment, the video source communicates with the transmitting node using an adjust equalization frame; as shown in fig. 12, a schematic diagram of a standard frame structure provided in an embodiment of the disclosure, the standard frame structure may include: BS (Blanking Start), VB-ID (Vertical BlankingIdentifier, field Blanking flag), mvid (timer value of Video data), naud (timer value of audio data), dummy Video (for Dummy data padding), BE (Blanking End), pixel data (for transmission of Video data), FS (Fill Start), fill Video (padding data for padding when data is not sufficient), FE (Fill End). The adjustment of the equalization frame may be based on adding a new time slot to the standard frame. Fig. 13 is a schematic diagram of an adjustment equalization frame structure according to an embodiment of the disclosure. The equalization frame is adjusted by adding an equalization enabling time slot, an equalization adjusting time slot, an adjustment threshold determining time slot, a load parameter adjusting time slot and a feedback time slot to the standard frame.

The equalization enabling time slot is used for confirming whether to adjust the load parameter, when the load parameter needs to be adjusted, all newly added time slots are enabled, when the load parameter needs to be adjusted, all newly added time slots are disabled, the standard frame structure shown in fig. 12 is enabled, the standard equipment is maximally compatible, and meanwhile signaling overhead is reduced, and data transmission efficiency is improved. The balance adjustment time slot is used for the video source to select an appropriate strategy according to the load value to realize the load value of the multi-channel transmission node in the video image processing system, for example, whether to adjust the load parameter in each transmission channel or whether to perform local dimming or backlight adjustment on the transmission node can be selected. The adjustment threshold determines a time slot and the video source determines a load adjustment threshold corresponding to each load parameter. And the load parameter adjustment time slot is used for adjusting the corresponding load parameter based on the load adjustment threshold value and the load value corresponding to each load parameter. And the feedback time slot is used for transmitting the result of the local dimming or backlight adjustment to the video source, feeding back the result of the video image display to the video source by each transmission node by utilizing the load parameter corresponding to the adjustment, feeding back the result of the local dimming or backlight adjustment, feeding back the load parameter in each transmission channel, and the like. For the roles in specific time slots in this embodiment, reference may be made to the above embodiments, and the description thereof will not be repeated here.

In this embodiment, the communication is performed by using the adjustment equalization frame, and the adjustment equalization frame is obtained by adding a time slot to the standard frame structure, when enabled, the newly added time slot is enabled, when disabled, all the newly added time slots are disabled, and the standard frame structure is enabled to be maximally compatible with the standard device, and meanwhile, signaling overhead is reduced, and data transmission efficiency is improved.

an equalization enable field for confirming whether to adjust the load parameter, and when the equalization enable field is received, the adjustment of the load parameter of the transmission node may be performed in the manner mentioned in the above-mentioned embodiments according to the embodiments of the present disclosure.

And a feedback field for feeding back a result of performing local dimming or backlight adjustment and a result of displaying the video image by each transmission node using the load parameter corresponding to the adjustment, and the like.

For specific limitation and implementation manners of other fields in the embodiments of the present disclosure, reference may be made to use and implementation manners of timeslots in the foregoing embodiments, and repeated descriptions are omitted herein. Wherein the role of the equalization-enabled time slot and the equalization-enabled field is substantially the same. The equalization adjustment slots and the equalization adjustment fields function substantially the same. The adjustment threshold determination time slot and the adjustment threshold determination field function substantially the same. The load parameter adjustment time slot and the load parameter adjustment field function substantially the same. The feedback slots and feedback fields function the same. Those skilled in the art may choose to use the equalization frame or the equalization signaling for communication according to the actual situation.

In one embodiment, as shown in fig. 14, another method for displaying a video image is further provided in an embodiment of the present disclosure, where the video source is connected to a transmission node through a transmission channel, and the method includes:

s802, acquiring video images displayed in transmission nodes in each transmission channel.

S804, determining a first load weight of the standard dynamic range image based on a predetermined first target weight in response to the type of the video image being the standard dynamic range image.

S806, according to the first load weight of the standard dynamic range image, determining a first load value when each transmission node displays the standard dynamic range image.

S808 determining a low dynamic range image constituting the high dynamic range image in response to the type of the video image being a high dynamic range image.

S810, dividing a display panel of the transmission node into a plurality of subareas; wherein a plurality of sub-regions are used for displaying at least one of the low dynamic range images, the sub-regions comprising at least: display area and/or overlap area.

S812, calculating the load value of each sub-area based on the preset sub-weight value of each sub-area.

S814, determining a load value when the display panel displays at least one of the low dynamic range images based on the load value of each display region and the load value of the overlapping region.

S816, determining a second load value when each transmission node displays the high dynamic range image based on the load value when the at least one low dynamic range image and the preset weight value of the low dynamic range image.

S818, determining a load adjustment threshold corresponding to each load parameter in response to the load value not meeting the preset requirement, wherein the load parameters comprise: bit depth of video data, number of physical channels, refresh rate, resolution.

S820, based on the load adjustment threshold value and the load value corresponding to each load parameter, the corresponding load parameter is adjusted according to the topological structure corresponding to each transmission node in each transmission channel, and the adjusted load parameter is used for enabling the load value when the transmission node in each transmission channel displays the video image to meet the preset requirement.

S822, responding to the load value not meeting the preset requirement, and carrying out local dimming or backlight adjustment on the transmission nodes based on the load value of each transmission node so as to enable the adjusted load value of the transmission node to meet the preset requirement.

Reference may be made to the foregoing embodiments for specific implementation and limitation in this embodiment, and the detailed description is not repeated here.

It should be understood that, although the steps in the flowcharts related to the embodiments described above are sequentially shown as indicated by arrows, these steps are not necessarily sequentially performed in the order indicated by the arrows. The steps are not strictly limited to the order of execution unless explicitly recited herein, and the steps may be executed in other orders. Moreover, at least some of the steps in the flowcharts described in the above embodiments may include a plurality of steps or a plurality of stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of the steps or stages is not necessarily performed sequentially, but may be performed alternately or alternately with at least some of the other steps or stages.

Based on the same inventive concept, the embodiments of the present disclosure also provide a video image display apparatus for implementing the above-mentioned related video image display method. The implementation of the solution provided by the device is similar to the implementation described in the above method, so the specific limitation in the embodiments of the display device for one or more video images provided below may be referred to the limitation of the display method for video images hereinabove, and will not be repeated here.

In one embodiment, as shown in fig. 15, there is provided a display apparatus 900 for video images, the video source being connected to a transmission node through a transmission channel, including: a video image acquisition module 902, a load value determination module 904, and a load parameter adjustment module 906, wherein:

a video image acquisition module 902, configured to acquire a video image displayed in a transmission node in each transmission channel;

a load value determining module 904, configured to determine, based on the type of the video image, a load value when each of the transmission nodes displays the video image;

and a load parameter adjustment module 906, configured to adjust, according to the topology structure corresponding to each transmission node in the transmission channel and the load value when each transmission node displays the video image, a load parameter in each transmission channel to instruct each transmission node to display the video image according to the adjusted load parameter in the corresponding transmission channel, where the adjusted load parameter is used to make the load value when the transmission node in each transmission channel displays the video image meet the preset requirement.

In one embodiment of the apparatus, the load value determining module 904 includes:

a first load value determining module, configured to determine a first load weight of a standard dynamic range image based on a predetermined first target weight in response to a type of the video image being the standard dynamic range image; and determining a first load value when each transmission node displays the standard dynamic range image according to the first load weight of the standard dynamic range image.

A second load value determining module configured to determine a low dynamic range image constituting the high dynamic range image in response to the type of the video image being a high dynamic range image; and determining a second load value when each transmission node displays the high dynamic range image based on at least one low dynamic range image and a preset weight value of each low dynamic range image, wherein the preset weight value of each low dynamic range image is determined at least based on the influence of the low dynamic range image on the high dynamic range image.

In an embodiment of the apparatus, the second load value determining module includes:

the partition module is used for dividing the display panel of the transmission node into a plurality of subareas; wherein a plurality of sub-regions are used for displaying at least one of the low dynamic range images, the sub-regions comprising at least: a display area and/or an overlap area;

The sub-region load value calculation module is used for calculating the load value of each sub-region based on a sub-weight value preset in each sub-region;

a low dynamic range image load value determining module, configured to determine a load value when the display panel displays at least one low dynamic range image, based on a load value of each display area and a load value of the overlapping area;

and the second load value determining submodule is used for determining a second load value when each transmission node displays the high dynamic range image based on the load value when at least one low dynamic range image and a weight value preset by the low dynamic range image.

In an embodiment of the apparatus, the low dynamic range image load value determining module is further configured to calculate a load sum of load values of the display area; and determining the load value when the display panel displays at least one low dynamic range image by subtracting the load value of the overlapped area from the load sum.

In one embodiment of the apparatus, the partitioning module is further configured to determine a display area in the display panel based on a coordinate value preset in the display panel. The partition module includes: and the initial display area determining module is used for determining initial coordinates and end coordinates in the display panel, and determining an initial display area in the display panel based on the initial coordinates and the end coordinates.

A display area determining module, configured to determine an offset display area in the display panel based on a preset offset, a start coordinate, and an end coordinate; and determining a display area in the display panel based on the initial display area and the offset display area.

And the coordinate allowance determining module is used for determining the coordinate allowance of the overlapped part in the display area.

And the overlapping area determining module is used for determining an overlapping area based on the coordinate allowance and the coordinates corresponding to the display area.

In one embodiment of the apparatus, the apparatus further comprises: and the backlight adjustment module is used for carrying out local dimming or backlight adjustment on the transmission nodes based on the load value of each transmission node in response to the load value not meeting the preset requirement, so that the adjusted load value of the transmission node meets the preset requirement.

In one embodiment of the apparatus, the load parameter adjustment module 906 includes:

the load adjustment threshold determining module is configured to determine a load adjustment threshold corresponding to each load parameter, where the load parameter includes: at least one of bit depth of video data, number of physical channels, refresh rate, resolution.

And the adjustment sub-module is used for adjusting the threshold value and the load value based on the load corresponding to each load parameter and adjusting the corresponding load parameter according to the topological structure corresponding to each transmission node in each transmission channel.

In one embodiment of the apparatus, the apparatus further comprises: a first communication module, configured to instruct communication between the video source and the transmission node using an adjustment equalization frame; the adjustment equalization frame is obtained based on a standard frame; the adjusting the equalization frame includes:

In one embodiment of the apparatus, the apparatus further comprises: a second communication module, configured to communicate between the video source and the transmission node using an adjustment equalization signaling, where the adjustment equalization signaling includes:

The respective modules in the above-described video image display apparatus may be implemented in whole or in part by software, hardware, and a combination thereof. The above modules may be embedded in hardware or may be independent of a processor in the computer device, or may be stored in software in a memory in the computer device, so that the processor may call and execute operations corresponding to the above modules.

In one embodiment, a computer device is provided, which may be a terminal, and the internal structure thereof may be as shown in fig. 16. The computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The communication interface of the computer device is used for carrying out wired or wireless communication with an external terminal, and the wireless mode can be realized through WIFI, a mobile cellular network, NFC (near field communication) or other technologies. The computer program is executed by a processor to implement a method of displaying video images. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, can also be keys, a track ball or a touch pad arranged on the shell of the computer equipment, and can also be an external keyboard, a touch pad or a mouse and the like.

Those skilled in the art will appreciate that the structures shown in fig. 16 are merely block diagrams of partial structures associated with the disclosed aspects and do not constitute a limitation of the computer device on which the disclosed aspects apply, and that a particular computer device may include more or fewer components than shown, or may combine certain components, or have a different arrangement of components.

In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having stored therein a computer program, the processor implementing the steps of the method embodiments described above when the computer program is executed.

In one embodiment, a computer readable storage medium is provided, having stored thereon a computer program which, when executed by a processor, implements the steps of any of the method embodiments described above.

In an embodiment, a computer program product is provided comprising a computer program which, when executed by a processor, implements the steps of any of the method embodiments described above.

Those skilled in the art will appreciate that implementing all or part of the above described methods may be accomplished by way of a computer program stored on a non-transitory computer readable storage medium, which when executed, may comprise the steps of the embodiments of the methods described above. Any reference to memory, database, or other medium used in embodiments provided by the present disclosure may include at least one of non-volatile and volatile memory, among others. The nonvolatile Memory may include Read-Only Memory (ROM), magnetic tape, floppy disk, flash Memory, optical Memory, high density embedded nonvolatile Memory, resistive random access Memory (ReRAM), magnetic random access Memory (Magnetoresistive RandomAccess Memory, MRAM), ferroelectric Memory (Ferroelectric Random Access Memory, FRAM), phase change Memory (Phase Change Memory, PCM), graphene Memory, and the like. Volatile memory can include Random access memory (Random AccessMemory, RAM) or external cache memory, and the like. By way of illustration, and not limitation, RAM can take many forms, such as static Random access memory (Static Random Access Memory, SRAM) or Dynamic Random access memory (Dynamic Random AccessMemory, DRAM), among others. The databases referred to in the various embodiments provided by the present disclosure may include at least one of a relational database and a non-relational database. The non-relational database may include, but is not limited to, a blockchain-based distributed database, and the like. The processors involved in the embodiments provided by the present disclosure may be general-purpose processors, central processing units, graphics processors, digital signal processors, programmable logic, quantum computing-based data processing logic, etc., without limitation thereto.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples have expressed only a few embodiments of the present disclosure, which are described in more detail and detail, but are not to be construed as limiting the scope of the present disclosure. It should be noted that variations and modifications can be made by those skilled in the art without departing from the spirit of the disclosure, which are within the scope of the disclosure. Accordingly, the scope of the present disclosure should be determined from the following claims.

Claims

1. A method for displaying video images, applied to a video source, the video source being connected to a transmission node through a transmission channel, the method comprising:

2. The method of claim 1, wherein the determining a load value for each of the transmission nodes when displaying the video image based on the type of the video image comprises:

3. The method of claim 2, wherein determining a second load value for each transmission node when displaying the high dynamic range image based on at least one of the low dynamic range images and a weight value preset for each low dynamic range image comprises:

4. A method according to claim 3, wherein said determining a load value for the display panel when displaying at least one of the low dynamic range images based on the load value for each display region and the load value for the overlap region comprises:

calculating a load sum of the load values of the display areas;

5. A method according to claim 3, wherein said dividing the display panel of the transmission node into a plurality of sub-areas comprises:

Determining a coordinate margin of an overlapping portion in the display area;

6. The method according to any one of claims 1 to 5, further comprising:

7. The method of claim 6, wherein the locally dimming or backlight adjusting the transmission node comprises:

and carrying out local adjustment or backlight adjustment on the transmission node based on the configuration of the register.

8. The method according to any one of claims 1 to 5, wherein the adjusting the load parameter in each transmission channel according to the topology structure corresponding to each transmission node in the transmission channel and the load value when each transmission node displays the video image includes:

9. The method of any one of claims 1 to 5, wherein the video source and the transmitting node communicate using an adjust equalization frame; the adjustment equalization frame is obtained based on a standard frame; the adjusting the equalization frame includes:

10. The method of any of claims 1 to 5, wherein the video source and the transmitting node communicate using an adjustment equalization signaling, the adjustment equalization signaling comprising:

11. A display device for video images, applied to a video source, said video source being connected to a transmission node through a transmission channel, said device comprising:

12. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 10.