CN114035758B - Image mosaic display system and image mosaic display method - Google Patents
Image mosaic display system and image mosaic display method Download PDFInfo
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- CN114035758B CN114035758B CN202110851668.7A CN202110851668A CN114035758B CN 114035758 B CN114035758 B CN 114035758B CN 202110851668 A CN202110851668 A CN 202110851668A CN 114035758 B CN114035758 B CN 114035758B
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- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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Abstract
The invention relates to an image mosaic display system and an image mosaic display method, wherein the image mosaic display system comprises: the image splicing display system comprises an image sending module, N image receiving modules and an image splitting module, wherein the image sending module carries out horizontal segmentation on an original image to obtain a sub-image, then sends the sub-image to the corresponding image receiving module, the image receiving module carries out vertical segmentation on the sub-image to obtain a display image, and then directly sends the display image to the corresponding display module for display; and the received original image is directly segmented, and the finally obtained display image is directly transmitted to the display module for display, so that complicated buffer temporary storage is not needed, the image splicing display step is reduced, the display effect is improved, the image splicing display cost is reduced, and further the user experience is improved.
Description
Technical Field
The present invention relates to the field of semiconductor display technologies, and in particular, to an image mosaic display system and an image mosaic display method.
Background
Currently, in an image mosaic display system, a large screen is assembled by a small screen display module, and then the large screen is combined to display a complete image, and the small screen of the large screen is coordinated to display a complete image or video, which generally includes: image caching, image segmentation, transmission, receiving, synchronization and display; the lighting system on the market at present can all realize the splice display function, but is usually more loaded down with trivial details, includes sender and receiver in the splice display system, and wherein the sender includes: image memory DDR (Double Data Rate SDRAM, double rate SDRAM)) buffering (Buffer), segmentation, data transfer, network transmission and the like; the receiving end comprises: network receiving, data deserializing, DDR (Buffer) image storage, synchronization, display and other steps, the existing image splicing and displaying steps are more, the image segmentation steps are complex, the display effect is poor, and the image splicing and displaying cost is high.
Therefore, how to reduce the steps of image mosaic display and improve the display effect is a problem to be solved.
Disclosure of Invention
In view of the shortcomings of the related art, an object of the present application is to provide an image mosaic display system and an image mosaic display method, which aim to solve the problems of multiple image mosaic display steps and poor display effect in the prior art.
An image tiled display system, comprising: the image transmission module, N image receiving modules, one of which is connected with M display modules; the image sending module is used for horizontally dividing the received original image into N sub-images and sending the sub-images to the corresponding image receiving modules, wherein one sub-image corresponds to one image receiving module; the image receiving module is used for vertically dividing the received sub-image into M display images and sending the display images to the corresponding display modules, wherein one display image corresponds to one display module; and the display module is used for displaying according to the received display image.
The image splicing display system comprises an image sending module and N image receiving modules, wherein the image sending module carries out horizontal segmentation on an original image to obtain a sub-image and then sends the sub-image to the corresponding image receiving module, the image receiving module carries out vertical segmentation on the received sub-image to obtain a display image and then directly sends the display image to the corresponding display module for display, and the image splicing display system provided by the embodiment firstly carries out horizontal segmentation on the original image into horizontal sub-images and then carries out vertical segmentation on the horizontal sub-images into the display image, so that the image segmentation is simple and feasible; and the received original image is directly segmented, and the finally obtained display image is directly transmitted to the display module for display, so that complicated buffer temporary storage is not needed, the image splicing display step is reduced, the display effect is improved, the image splicing display cost is reduced, and further the user experience is improved.
Optionally, the image mosaic display system further includes: a computing module; the computing module is used for dividing the display enabling signals of the original image into N display enabling signal effective areas according to the number of the image receiving modules.
Optionally, the image sending module includes: a first control chip; and the first control chip is used for carrying out horizontal segmentation on the original image according to the display enabling signal effective area when receiving the field synchronous signal to obtain N sub-images, and sending the sub-images to the corresponding image receiving modules.
Optionally, the first control chip is: a field programmable gate array.
According to the image mosaic display system, when the first control chip in the image sending module is the field programmable gate array, the original image is directly segmented based on the FPGA to obtain the sub-image and is transmitted to the image receiving module, so that complicated Buffer temporary storage is not needed, the step of image mosaic display is reduced, and meanwhile, the Buffer temporary storage is avoided, and the cost of image mosaic display is saved.
Optionally, the calculating module is further configured to divide the pixel clock signal of the sub-image into M pixel clock signal effective areas according to the number of the display modules.
Optionally, the image receiving module includes: a second control chip; and the second control chip is used for vertically dividing the sub-images according to the effective areas of the pixel clock signals when receiving the line synchronizing signals to obtain M display images, and sending the display images to the display module.
Optionally, the second control chip is: a field programmable gate array.
According to the image mosaic display system, when the second control chip in the image receiving module is the field programmable gate array, the sub-images are directly segmented based on the FPGA to obtain the display images and are transmitted to the display module, so that complicated Buffer temporary storage is not needed, the step of image mosaic display is reduced, and meanwhile, the Buffer temporary storage is avoided, and the cost of image mosaic display is saved.
Optionally, the image mosaic display system further includes: a first RGB signal transmission line and a second RGB signal transmission line; the image sending module is connected with the image receiving module through the first RGB signal transmission line, and the first RGB signal transmission line is used for transmitting the sub-image to the corresponding image receiving module; the image receiving module is connected with the display module through the second RGB signal transmission line, and the second RGB signal transmission line is used for transmitting the display image to the display module.
In the image mosaic display system, the resolution ratio of the sub-image obtained by segmentation of the image sending module is smaller, the sub-image can be directly sent to the corresponding image receiving module through the first RGB signal transmission line between the image sending module and the image receiving module, the display image obtained by segmentation of the sub-image by the image receiving module can be directly transmitted to the display module through the second RGB signal transmission line, complex network communication and network hardware are omitted, the network transmission step in the image mosaic display is reduced, the cost of the image mosaic display is saved, meanwhile, the transmission information source loss through the RGB signal transmission line is small, and the display effect of the image mosaic display is improved.
Based on the same inventive concept, the application also provides an image mosaic display method, which comprises the following steps: the image sending module horizontally divides the received original image into N rows of sub-images and sends the sub-images to the corresponding image receiving modules, and one sub-image corresponds to one image receiving module; the image receiving module vertically divides the received sub-image into M display images and sends the display images to a display module, and one display image corresponds to one display module; and the display module is used for displaying according to the received display image.
According to the image mosaic display method, the image sending module is used for horizontally dividing the original image to obtain the sub-image, then sending the sub-image to the corresponding image receiving module, the image receiving module is used for vertically dividing the sub-image to obtain the display image, and then directly sending the display image to the corresponding display module for display; and the received original image is directly segmented, and the finally obtained display image is directly transmitted to the display module for display, so that complicated buffer temporary storage is not needed, the image splicing display step is reduced, the display effect is improved, the image splicing display cost is reduced, and further the user experience is improved.
Optionally, the sending the sub-image to the corresponding image receiving module includes: transmitting the sub-image to the corresponding image receiving module through a first RGB signal transmission line between the image transmitting module and the image receiving module; the sending the display image to a display module includes: and transmitting the display image to the display module through a second RGB signal transmission line between the image receiving module and the display module.
Drawings
Fig. 1 is a schematic diagram of a basic structure of an image mosaic display system according to an embodiment of the present invention;
FIG. 2 is a timing diagram of RGB image signals according to an embodiment of the present invention;
FIG. 3 is a basic schematic diagram of the transverse uniform segmentation of DENs of an original image according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a PLCK vertical uniform division of a sub-image according to an embodiment of the present invention;
FIG. 5 is a basic schematic diagram of a driving display module according to an embodiment of the present invention;
FIG. 6-1 is a schematic diagram of an image display system according to an embodiment of the present invention;
FIG. 6-2 is a schematic diagram of another exemplary embodiment of an image stitching display system;
FIG. 7 is a basic schematic diagram of an RGB sequential actual corresponding image according to an embodiment of the present invention;
FIG. 8 is a basic schematic diagram of a horizontally segmented raw image according to an embodiment of the present invention;
FIG. 9 is a basic schematic diagram of a vertically segmented sub-image according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of a basic flow chart of an image stitching display method according to another alternative embodiment of the present invention;
reference numerals illustrate:
1-image sending module, 2-image receiving module and 3-display module.
Detailed Description
In order to facilitate an understanding of the present application, a more complete description of the present application will now be provided with reference to the relevant figures. Preferred embodiments of the present application are shown in the accompanying drawings. This application may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
Currently, the image mosaic display includes a transmitting end and a receiving end, where the transmitting end includes: image storage DDR (Buffer), segmentation, data string transfer, network transmission and the like; the receiving end comprises: network receiving, data deserializing, DDR (Buffer) image storage, synchronization, display and other steps, the existing image splicing display steps are multiple and complex, the transmission speed is limited by the network, the display speed is low, the display effect is poor, and the cost is high.
Based on this, the present application intends to provide a solution to the above technical problem, the details of which will be explained in the following embodiments.
Embodiments of the invention
In order to solve the problems of more image mosaic display steps and poor display effect in the related art, an embodiment of the present invention provides an image mosaic display system, please refer to fig. 1, which includes but is not limited to: image transmission modules 1, N (e.g., N > 1) image reception modules 2, one of the image reception modules 2 being connected to M (e.g., M > 2) display modules 3; the image sending module 1 is configured to split a received original image horizontally into N sub-images, and send the sub-images to the corresponding image receiving modules 2, where one sub-image corresponds to one image receiving module 2; the image receiving module 2 is configured to vertically divide the received sub-image into M display images, and send the display images to the corresponding display modules 3, where one display image corresponds to one display module 3; the display module 3 is configured to display according to the received display image.
The image mosaic display system provided by the embodiment comprises an image sending module 1 and N image receiving modules 2, wherein the image sending module 1 carries out horizontal segmentation on an original image to obtain a sub-image and then sends the sub-image to the corresponding image receiving module 2, the image receiving module 2 carries out vertical segmentation on the sub-image to obtain a display image and then directly sends the display image to the corresponding display module 3 for display, and the image mosaic display system provided by the embodiment firstly carries out horizontal segmentation on the original image to form a horizontal sub-image and then carries out vertical segmentation on the horizontal sub-image to form a display image, so that the image segmentation is simple and feasible; and the received original image is directly segmented, and the finally obtained display image is directly transmitted to the display module 3 for display, so that complicated buffer temporary storage is not needed, the image splicing display step is reduced, the display effect is improved, the image splicing display cost is reduced, and further the user experience is improved.
It should be understood that, as shown in fig. 2, fig. 2 shows a timing chart of RGB image signals, and as shown, an image frame of an original image includes a field synchronization signal (VSYNC), a line synchronization signal (HSYNC), a display enable signal (DEN), a pixel clock signal (PCLK), and DATA, wherein the field synchronization signal is used as a start of a frame of the image; the line synchronization signal is used as the start of a line image, when the DEN signal is active, the image starts to be transmitted and displayed on the screen, one DEN active area represents a line image display, one pixel clock signal corresponds to one pixel, and DATA is RGB image DATA. It should be understood that, where the number of image receiving modules 2 is N, the number of display modules 3 is M, and the number of display modules 3 is M.
In some examples of this embodiment, the image mosaic display system further includes: a computing module; the computing module is used for dividing the display enabling signals of the original image into N display enabling signal effective areas according to the number of the image receiving modules 2; for example, taking the pixel of the original image as 4K (3840 x 2160) (the image has 2160 DEN signals, 3840 PCLK signals, one DEN corresponds to one row pixel, one PCLK corresponds to one column pixel), taking the number of image receiving modules 2 as 8 as an example, the number of image receiving modules 2 as 8 has 8 display enable signal effective areas (the number of display enable signal effective areas corresponds to the number of image receiving modules 2), as shown in fig. 3, 2160 display enable signals are uniformly divided into 8 display enable signal effective areas, each display enable signal effective area has 270 rows of display enable signals, wherein the first display enable signal effective area includes display enable signals of rows 0 to 270, the second display enable signal effective area includes display enable signals of rows 271 to 540, and the eighth display enable signal effective area includes display enable signals of rows 1891 to 2160, and then the eighth display enable signal effective area divides the display enable signals of rows 2160 for the original image.
In some examples of the present embodiment, the image transmission module 1 includes: a first control chip; the first control chip is configured to, when receiving a field synchronization signal, perform horizontal segmentation on the original image according to the display enable signal effective area to obtain N sub-images, and send the sub-images to the corresponding image receiving module 2; for example, in the above example, the first control chip detects the field sync signal, takes the field sync signal as the start signal, then takes the DEN signal as the number of horizontal divisions, when detecting the 0 th to 270 th DEN (i.e. 270 rows, the first display enable signal valid region) as the 0 th horizontal division sub-image and transmits it, similarly, when detecting the 271 th to 540 th DEN (i.e. 270 rows, the second display enable signal valid region) as the 1 st horizontal division sub-image and transmits it, and so on, the 1891 th to 2160 th DEN signal as the 7 th horizontal division sub-image and transmits it, so that the original image is divided into 8 parts in parallel, it should be understood that in some examples, the first control chip may divide the original image into one sub-image and transmit it to the corresponding image receiving module 2, and after dividing the original image into N sub-images, the first control chip may also transmit each sub-image to the corresponding image receiving module 2 synchronously.
It should be understood that in some examples, the image mosaic display system can directly calculate by the image transmission module 1 and then divide the display enable signal of the original image into N display enable signal valid areas, without separately setting a calculation module.
In some examples of this embodiment, the first control chip is: in the Field Programmable Gate Array (FPGA), the image mosaic display system provided in this embodiment directly segments the original image based on the FPGA to obtain the sub-image, and transmits the sub-image to the image receiving module 2, so that complicated Buffer temporary storage is not required, the steps of image mosaic display are reduced, and meanwhile, the cost of image mosaic display is saved because Buffer temporary storage is avoided.
In some examples of this embodiment, the calculating module is further configured to divide the pixel clock signal of the sub-image into M pixel clock signal valid areas according to the number of the display modules 3; for example, taking the pixel of the original image as 4K (3840 x 2160), the number of display modules 3 is 16 as an example, the pixel of the original image as 3840 indicates that each sub-image has 3840 columns of pixel clock signals (PCLK signals), the number of display modules 3 as 16 has 16 effective pixel clock signal areas (corresponding to the number of display modules 3), and as shown in fig. 4, the 3840 pixel clock signals are uniformly divided into 16 effective pixel clock signal areas, and each effective pixel clock signal area has 240 pixel clock signals; that is, the first pixel clock signal effective area includes pixel clock signals of columns 0-240, the second pixel clock signal effective area includes pixel clock signals of columns 241-480, and so on, the 16 th pixel clock signal effective area includes pixel clock signals of columns 3601-3840, and then the 3840 column pixel clock signals of the original image are divided into 16 pixel clock signal effective areas.
In some examples of this embodiment, the image receiving module 2 includes: a second control chip; the second control chip is configured to vertically divide the sub-image according to the effective area of the pixel clock signal when receiving a line synchronization signal, obtain M display images, and send the display images to the display module 3; for example, in the above example, the second control chip detects a line synchronization signal (HSYNC), which is used as a start signal of one sub-image (a line image), uses HSYNC as a start signal, then uses PLCK signals as vertical division numbers, when detecting PLCK of columns 0-240 (i.e., column 240, the first pixel clock signal valid region) as column 0, vertically divides and transmits the display image, and simultaneously generates RGB control signals of the display image 0 to drive the display module 3 to display, and similarly, when detecting PLCK of columns 241-480 (i.e., column 240, the second pixel clock signal valid region) as column 1, vertically divides and transmits the display image 1, and simultaneously generates RGB control signals of the display image 1 to drive the second display module 3 to display, and so on, PLCK of columns 3601-3840 as column 15 vertically divides and transmits and simultaneously generates RGB control signals of the display image 15 to drive the display module 3 to display, thus the sub-image is vertically divided into 16 equally; it should be understood that, in some examples, the image receiving module 2 may divide a display image to transmit the display image to the corresponding display module 3, or the image receiving module 2 may divide the sub-image into M display images, and then transmit each sub-image to the corresponding display module 3 synchronously.
It should be understood that the image processing of the image receiving module 2 is not limited to the manner of vertically dividing the image, but may be a non-dividing manner, and is not specifically limited herein.
It should be appreciated that in some examples, the image mosaic display system divides the pixel clock signal of the sub-image into M pixel clock signal valid areas according to the number of the display modules 3 directly through the image receiving module 2, without separately providing a calculating module.
In some examples of this embodiment, the second control chip is: the Field Programmable Gate Array (FPGA) is used for directly dividing the sub-images based on the FPGA to obtain the display images and transmitting the display images to the display module 3, so that complicated Buffer temporary storage is not needed, the step of image splicing display is reduced, and meanwhile, the cost of image splicing display is saved because Buffer temporary storage is avoided.
In some examples of this embodiment, the image mosaic display system further includes: a first RGB signal transmission line and a second RGB signal transmission line; it should be understood that the first RGB signal transmission line and the second RGB signal transmission line are only used to distinguish the signal transmission lines between different modules, and the present embodiment is not limited to the material, the specification, and other parameters of the first RGB signal transmission line and the second RGB signal transmission line, that is, other parameters of the first RGB signal transmission line and the second RGB signal transmission line may be the same or different.
In the above example, the image sending module 1 is connected to the image receiving module 2 through the first RGB signal transmission line, where the first RGB signal transmission line is used to transmit the sub-image to the corresponding image receiving module 2. For example, with the above example, when the image transmitting module 1 detects the 0 th to 270 th DEN (i.e., 270 rows, the first display enable signal effective area) as the 0 th horizontally split sub-image and transmits to the image receiving module 2 through the first RGB signal transmission line between the image receiving modules 2 corresponding to the sub-image, when the 271 th to 540 th DEN (i.e., 270 rows, the second display enable signal effective area) is detected as the 1 st horizontally split sub-image and transmits to the corresponding image receiving module 2 through the first RGB signal transmission line between the image receiving modules 2 corresponding to the sub-image, and so on, the 1891 th to 2160 th horizontally split sub-image as the 7 th horizontally split sub-image and transmits to the corresponding image receiving module 2 through the first RGB signal transmission line between the receiving modules corresponding to the sub-image.
In some examples of this embodiment, the sub-image is sent to the corresponding image receiving module 2 through the first RGB signal transmission line between the image sending module 1 and the image receiving module 2, the resolution of the sub-image obtained by segmentation is small, and the sub-image can be directly transmitted through the first RGB signal transmission line, so that complicated network communication and network hardware are omitted, the steps of network transmission in image mosaic display are reduced, the cost of image mosaic display is saved, and meanwhile, the loss of the transmission information source through the first RGB signal transmission line is small, and the display effect of the image mosaic display is improved.
In some examples of this embodiment, the image receiving module 2 is connected to the display module 3 through the second RGB signal transmission line, and the second RGB signal transmission line is used to transmit the display image to the display module 3. For example, in the above example, when the image receiving module 2 detects PLCK of the 0 th to 240 th columns (i.e., 240 th columns, the first pixel clock signal effective area) as the 0 th vertically divided display image, the PLCK is transmitted to the corresponding display module 3 through the second RGB signal transmission line between the display modules 3 corresponding to the 0 th display image 3601 to 3840 th PLCK as the 15 th horizontally divided sub-image, and the PLCK is transmitted to the corresponding display module 3 through the second RGB signal transmission line connected to the 16 th display module 3.
In some examples of this embodiment, the display image is sent to the corresponding display module 3 through the human RGB signal transmission line between the image receiving module 2 and the display module 3, where the resolution of the display image obtained by dividing the image receiving module 2 is small, and the display image can be directly transmitted through the second RGB signal transmission line, so that cumbersome network communication and network hardware are omitted, the steps of network transmission in image mosaic display are reduced, the cost of image mosaic display is saved, and meanwhile, the loss of the transmission information source through the second RGB signal transmission line is small, and the display effect of image mosaic display is improved.
In some examples of this embodiment, the display module 3 is configured to display according to the received display image, and it should be understood that when the display module 3 receives the display image, a corresponding RGB control signal is also received, and the display module 3 displays according to the received RGB control signal and the display image, as shown in fig. 5.
For a better understanding of the present invention, this embodiment provides a more specific example for explaining the present invention, and referring to fig. 6-1 and 6-2, this example provides an image mosaic display system, which includes: an image transmitting module 1, 8 image receiving modules 2 connected with the image transmitting module 1, and 16 display modules 3 connected with the image receiving module 2; fig. 7 shows an image actually corresponding to the RGB time sequence, and the invention is exemplified by the example of performing the mosaic display on the 4K (3840 x 2160) image;
the image sending module 1 adopts an FPGA, the image sending module 1 detects a field synchronization signal, takes VSYNC as a start signal, then takes a DEN signal as a transverse division number, when 270 denies (namely 270 rows) are detected, the signal is taken as a 0 th horizontal division sub-image and transmitted through an RGB signal transmission line, and similarly, when 271-540 denies (namely 270 rows) are detected, the signal is taken as a 1 st horizontal division sub-image and transmitted through an RGB signal transmission line, and the signal is pushed in this way, 1891-2160 is taken as an 8 th horizontal division sub-image and transmitted through an RGB signal transmission line. Thus, the image was equally divided into 8 portions in parallel as shown in fig. 8.
The image receiving module 2 adopts an FPGA, the image receiving module 2 detects a line synchronization signal, HSYNC is used as a starting signal, PCLK & DEN signals (namely PCLK contained after DEN is effective) are divided as vertical division numbers, namely 0-240 are used as 0 th display image to be divided and transmitted out through an RGB signal transmission line, and RGB control signals of the 0 th image are generated at the same time; 241-480 are segmented as the 1 st image and transmitted through the RGB signal transmission line, while generating RGB control signals for the 1 st image, and so on, 3601-3840 are segmented as the 15 th image and transmitted through the RGB signal transmission line, while generating RGB control signals for the 15 th image. This vertically divides the horizontal image into 16 portions as shown in fig. 9.
As shown in fig. 5, the image receiving module 2 divides the corresponding sub-image into display images with corresponding module resolution, sends the display images to each corresponding display module 3 through RGB data lines, and drives each display module 3 to display the divided images through RGB control signals corresponding to each display module 3.
According to the image mosaic display system provided by the embodiment, the image is firstly horizontally segmented into 8 parts of sub-images through the image sending module, and then each corresponding sub-image is sequentially segmented into 16 parts of display images through the image receiving module, so that the segmentation is simpler and faster; meanwhile, the image sending module and the image receiving module adopt the FPGA to capture VSYNC and HSYNC synchronous signals of the original image, and all modules are based on the synchronous signals, so that the synchronization is simple, and the synchronization software and hardware resources are not required to be increased. Meanwhile, the split small module has low image resolution, can directly transmit through the corresponding RGB signal transmission line, and then is driven according to the control signal, so that the traditional network communication is not needed, the step of image splicing display is reduced, the cost of image splicing display is reduced, and the display effect of the image splicing display is improved.
Another alternative embodiment of the invention:
the embodiment of the invention also provides an image mosaic display method, as shown in fig. 10, which includes but is not limited to:
s101, horizontally dividing a received original image into N rows of sub-images by an image sending module, and sending the sub-images to a corresponding image receiving module;
it should be understood that one image transmission module is connected with N image reception modules, one image reception module is connected with M display modules, and one of the sub-images corresponds to one of the image reception modules;
s102, the image receiving module vertically divides the received sub-image into M display images and sends the display images to a display module;
it should be understood that one of the display images corresponds to one of the display modules;
and S103, the display module displays according to the received display image.
In some examples of this embodiment, the sending the sub-image to the corresponding image receiving module includes: transmitting the sub-image to the corresponding image receiving module through a first RGB signal transmission line between the image transmitting module and the image receiving module; the sending the display image to a display module includes: and transmitting the display image to the display module through a second RGB signal transmission line between the image receiving module and the display module.
The image sending module and the image receiving module respectively adopt an FPGA, the image sending module grabs a VSYNC signal of an original image through the FPGA, the VSYNC signal is used as a starting signal for dividing the original image, the received original image is horizontally divided into N rows of sub-images, and the sub-images are sent to the corresponding image receiving module through corresponding RGB signal transmission lines; the image receiving module captures each sub-image HSYNC synchronous signal through the FPGA, the sub-images received as starting signals are vertically divided into M display images, and the display images are sent to the display module through corresponding RGB signal transmission lines.
In some examples of the embodiment, the image sending module and the image receiving module adopt FPGA to capture VSYNC and HSYNC synchronizing signals of the original image, and all modules are based on the synchronizing signals, so that synchronization is simple, and no additional synchronizing software and hardware resources are needed. Meanwhile, the split small module has low image resolution, can directly transmit through the corresponding RGB signal transmission line, and then is driven according to the control signal, so that the traditional network communication is not needed, the step of image splicing display is reduced, the cost of image splicing display is reduced, and the display effect of the image splicing display is improved.
The present embodiments also provide a computer-readable storage medium including volatile or nonvolatile, removable or non-removable media implemented in any method or technology for storage of information, such as computer-readable instructions, data structures, computer program modules or other data. Computer-readable storage media includes, but is not limited to, RAM (Random Access Memory ), ROM (Read-Only Memory), EEPROM (Electrically Erasable Programmable Read Only Memory, charged erasable programmable Read-Only Memory), flash Memory or other Memory technology, CD-ROM (Compact Disc Read-Only Memory), digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer.
The computer readable storage medium in this embodiment may be used to store one or more computer programs, where the stored one or more computer programs may be executed by a processor to implement at least one step of the image mosaic display method in the above embodiment.
It will be apparent to one skilled in the art that all or some of the steps of the methods, systems, functional modules/units in the apparatus disclosed above may be implemented as software (which may be implemented in computer program code executable by a computing apparatus), firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between the functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed cooperatively by several physical components. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit.
Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, computer program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and may include any information delivery media. Therefore, the present invention is not limited to any specific combination of hardware and software.
It is to be understood that the invention is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.
Claims (10)
1. An image mosaic display system, comprising:
the image transmission module and the image receiving modules adopt field synchronous signals and line synchronous signals of original images;
the image sending module is used for horizontally dividing the received original image into N sub-images and sending the sub-images to the corresponding image receiving modules, wherein one sub-image corresponds to one image receiving module;
the image receiving module is used for vertically dividing the received sub-image into M display images and sending the display images to the corresponding display modules, wherein one display image corresponds to one display module;
and the display module is used for displaying according to the received display image.
2. The image tiled display system according to claim 1, wherein the image tiled display system further comprises: a computing module;
the computing module is used for dividing the display enabling signals of the original image into N display enabling signal effective areas according to the number of the image receiving modules.
3. The image mosaic display system of claim 2, wherein the image transmission module comprises: a first control chip;
and the first control chip is used for carrying out horizontal segmentation on the original image according to the effective area of the display enabling signal when the field synchronizing signal is received, obtaining N sub-images and sending the sub-images to the corresponding image receiving modules.
4. The image tiled display system according to claim 3, wherein the first control chip is: a field programmable gate array.
5. The image mosaic display system of claim 2, wherein the computing module is further configured to divide the pixel clock signal of the sub-image into M pixel clock signal active areas according to the number of display modules.
6. The image tile system of claim 5, wherein the image receiving module comprises: a second control chip;
and the second control chip is used for vertically dividing the sub-images according to the effective areas of the pixel clock signals when the line synchronizing signals are received, obtaining M display images and sending the display images to the corresponding display modules.
7. The image tiled display system according to claim 6, wherein the second control chip is: a field programmable gate array.
8. The image mosaic display system of any one of claims 1-7, further comprising: a first RGB signal transmission line and a second RGB signal transmission line;
the image sending module is connected with the image receiving module through the first RGB signal transmission line, and the first RGB signal transmission line is used for transmitting the sub-image to the corresponding image receiving module;
the image receiving module is connected with the display module through the second RGB signal transmission line, and the second RGB signal transmission line is used for transmitting the display image to the display module.
9. An image mosaic display method is characterized by comprising the following steps:
the image sending module horizontally divides a received original image into N rows of sub-images and sends the sub-images to a corresponding image receiving module, one sub-image corresponds to one image receiving module, and the image sending module and the image receiving module both adopt a field synchronous signal and a row synchronous signal of the original image;
the image receiving module vertically divides the received sub-image into M display images and sends the display images to a display module, and one display image corresponds to one display module;
and the display module displays according to the received display image.
10. The image mosaic display method according to claim 9, wherein,
the sending the sub-image to the corresponding image receiving module comprises: transmitting the sub-image to the corresponding image receiving module through a first RGB signal transmission line between the image transmitting module and the image receiving module;
the sending the display image to a display module includes: and transmitting the display image to the display module through a second RGB signal transmission line between the image receiving module and the display module.
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