CN113038036A - Background image display method, video processing equipment, display system and main control card - Google Patents
Background image display method, video processing equipment, display system and main control card Download PDFInfo
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- CN113038036A CN113038036A CN201911347623.5A CN201911347623A CN113038036A CN 113038036 A CN113038036 A CN 113038036A CN 201911347623 A CN201911347623 A CN 201911347623A CN 113038036 A CN113038036 A CN 113038036A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
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Abstract
The embodiment of the invention relates to a background image display method, video processing equipment, a display system and a main control card which are suitable for the background image display method. The background image display method includes, for example: drawing a dynamic or 3D background image according to the background pixel material, and sending the dynamic or 3D background image to a switching back plate; controlling the switch backplane to transmit the dynamic or 3D background map to a plurality of output cards; and the plurality of output cards respectively process the dynamic or 3D background image according to the position and the size of the loading area of the output cards in the target display screen and then output the processed dynamic or 3D background image to the target display screen. The embodiment of the invention can realize the on-screen display of the dynamic or 3D background picture.
Description
Technical Field
The invention relates to the technical field of video equipment and image display control, in particular to a background picture display method, video processing equipment, a display system and a main control card.
Background
The large-screen background image in a video processing device such as a video stitching processor is a static 2D image, which causes the large-screen background image to be displayed singly and rigidly, and cannot meet the use requirements of high-end markets.
Disclosure of Invention
Therefore, to overcome the defects and shortcomings of the prior art, embodiments of the present invention provide a background map display method, a video processing device, a display system, and a host card, which are capable of implementing dynamic or 3D background map display.
In one aspect, a method for displaying a background image according to an embodiment of the present invention includes: drawing a dynamic or 3D background image according to the background pixel material, and sending the dynamic or 3D background image to a switching back plate; controlling the switch backplane to transmit the dynamic or 3D background map to a plurality of output cards; and the plurality of output cards respectively process the dynamic or 3D background image according to the position and the size of the loading area of the output cards in the target display screen and then output the processed dynamic or 3D background image to the target display screen.
The background image display method of the embodiment draws a dynamic or 3D background image according to the background image pixel material, and then distributes the dynamic or 3D background image to a plurality of output cards through the switching backplane to perform corresponding processing and display the dynamic or 3D background image on the screen, thereby realizing the display of the dynamic or 3D background image.
In an embodiment of the present invention, the drawing a dynamic or 3D background map according to background pixels and sending the dynamic or 3D background map to a switch backplane includes: drawing the dynamic or 3D background image by a graphics processor built in the embedded processor according to the background image material; transmitting the dynamic or 3D background image to a programmable logic device, so that the programmable logic device converts the dynamic or 3D background image into a SerDes signal and then sends the SerDes signal to a switching matrix of the switching backplane; the controlling the switch backplane to communicate the dynamic or 3D background map to a plurality of output cards includes: the switching matrix of the switching backplane is controlled by a central processor built in the embedded processor to transmit the dynamic or 3D background map to the plurality of output cards.
In an embodiment of the present invention, the processing, by the output cards, the dynamic or 3D background image according to the position and size of the loading area thereof in the target display screen, and outputting the processed dynamic or 3D background image to the target display screen includes: and intercepting and zooming the dynamic or 3D background image according to the position and the size of the self loading area in the target display screen.
In another aspect, an embodiment of the present invention provides a video processing apparatus, including: a switching backplane; a plurality of output cards electrically connected to the switch backplane; the master control card is electrically connected with the exchange back plate and is provided with an embedded processor; the embedded processor is internally provided with a graphic processor and a central processing unit, the graphic processor is used for drawing a dynamic or 3D background image according to background pixel materials and sending the dynamic or 3D background image to the exchange backboard, the central processing unit is used for controlling the exchange backboard to transmit the dynamic or 3D background image to target output cards in the output cards, and the target output cards are used for processing the dynamic or 3D background image according to the position and the size of a loading area of the target output cards in a target display screen and then outputting the processed dynamic or 3D background image to the target display screen.
In the video processing device of this embodiment, the graphics processor is built in the embedded processor on the main control card, and the dynamic or 3D background map can be drawn by the graphics processor according to the background map pixel material, and then the drawn dynamic or 3D background map can be distributed to one or more output cards for processing and then displayed on the screen, so that the display of the dynamic or 3D background map can be realized.
In an embodiment of the present invention, the main control card further includes: the programmable logic device is electrically connected with the embedded processor; the programmable logic device is used for receiving the dynamic or 3D background image drawn by the graphics processor, converting the dynamic or 3D background image into a SerDes signal and then sending the SerDes signal to a switching matrix of the switching backplane.
In an embodiment of the present invention, the target output card is specifically configured to output the dynamic or 3D background image to the target display screen after performing clipping and scaling processing on the dynamic or 3D background image according to a position and a size of a self-loading area in the target display screen.
In one embodiment of the invention, the master control card and the plurality of output cards are respectively inserted and fixed to the exchange backplane.
In another aspect, an embodiment of the present invention provides a display system, including: a display screen; and any one of the video processing devices, and the display screen is used as the target display screen.
In another aspect, an embodiment of the present invention provides a master card, which is suitable for being applied to a video processing device including a switch backplane and a plurality of output cards. The master control card comprises: the embedded processor is internally provided with a graphic processor and a central processing unit; the graphics processor is used for drawing a background image according to background image materials and sending the background image to the exchange backboard; the central processing unit is used for controlling the exchange back plate to transmit the background image to a target output card in the output cards, so that the target output card processes the background image according to the position and the size of the loading area of the target output card in a target display screen and outputs the processed background image to the target display screen.
In the main control card of this embodiment, the embedded processor of the main control card is provided with the graphics processor, and the graphics processor can draw a background map, such as a dynamic or 3D background map, according to the background map material, and then the drawn background map can be distributed to one or more output cards for processing and then displayed on a screen, so that background map display can be implemented.
In an embodiment of the present invention, the main control card further includes: the programmable logic device is electrically connected with the embedded processor; the programmable logic device is used for receiving the background image drawn by the graphics processor, converting the background image into a SerDes signal and then sending the SerDes signal to the switching backplane.
As can be seen from the above, the above technical features of the present invention may have one or more of the following advantages: according to the background map display method, the video processing device, the display system and the main control card of the embodiment, a background map such as a dynamic or 3D background map can be drawn according to a background map material, and then the drawn background map is distributed to one or more first output cards for back-end processing and then on-screen display; the drawing operation can be completed by a graphics processor built in the embedded processor. Therefore, the embodiment can realize flexible and complex large-screen background effect, support dynamic images and 3D effect images and support high-resolution images, and can bring an extremely elegant viewing experience to users
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a video processing apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a display system according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of another video processing apparatus according to an embodiment of the present invention.
Fig. 4 is a flowchart of a background diagram display method according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, a video processing apparatus 10 according to an embodiment of the present invention includes: a master card 11, a switch backplane 13, and a plurality of output cards 151-15 n.
Wherein the plurality of output cards 151-15n are electrically connected to the switch backplane 13, respectively. The main control card 11 is electrically connected to the switch backplane 13 and is provided with an embedded processor 112. The embedded processor 112 here is, for example, a processor in which an embedded operating system such as a Linux system is installed, and a Central Processing Unit (CPU)1121 and a Graphics Processing Unit (GPU)1123 are built therein. For example, the central processing unit 1121 may be a multi-core CPU, and the graphics processing unit 1123 may be a multi-core GPU. Furthermore, the video processing device 10 of the present embodiment may be a card-insertion device, and accordingly, the main control card 11 and the plurality of output cards 151 to 15n are respectively inserted and fixed to the switch backplane 13.
As mentioned above, the graphics processor 1123 is configured to draw a dynamic or 3D background map according to the background pixels, and send the dynamic or 3D background map to the switch backplane 13. The central processor 1121 is configured to control the switch backplane 13 to transmit the dynamic or 3D background map to a target output card of the plurality of output cards 151-15n, so that the target output card is configured to process the dynamic or 3D background map according to a position and a size of a loading area of the target output card in a target display screen and output the processed dynamic or 3D background map to the target display screen. The target output card here is one or more of the plurality of output cards 151-15 n; here, the processing of the dynamic or 3D background image is, for example, a clipping process and a scaling process.
In order to make the video processing apparatus 10 of the present embodiment more clearly understood, the following description will be made in detail with reference to the display system 20 shown in fig. 2.
As shown in fig. 2, the video processing apparatus in the display system 20 is provided with five output cards 151 and 155, the switching backplane 13 is provided with a switching matrix 130, and the other structures are the same as those of the video processing apparatus 10 shown in fig. 1. In addition, the display system 20 further includes a display 171 and a display 173, wherein the display 171 is electrically connected to the three output cards 151, 152 and 153, and the display 173 is electrically connected to the two output cards 154 and 155. Here, the display screen 171 and the display screen 173 are a spliced display screen such as an LED display screen, and the switching matrix 130 adopts Cross-Point switching chips, for example, but the embodiment of the present invention is not limited thereto; moreover, the number of output cards and the number of display screens of the display system 20 shown in fig. 2 are only for illustration and are not intended to limit the embodiments of the present invention.
As mentioned above, the video processing device of the display system 20 firstly takes the background pixel material from the main control card 11 in a usb disk or network uploading manner and stores the background pixel material in a local memory, such as an eMMC memory, then draws a dynamic or 3D background image according to the specified background image material through the graphics processor 1123 built in the embedded processor 112 in response to the background image display instruction, and then sends the background image to the switch matrix 130 of the switch backplane 13, and the central processing unit 1121 built in the embedded processor 112 on the main control card 11 outputs a control command to control the switch matrix 130 of the switch backplane 13 to dispatch the dynamic or 3D background image to the corresponding output card. For example, the graphics processor 1123 draws two dynamic or 3D background maps, and the switch matrix 130 of the switch backplane 13 distributes one of the dynamic or 3D background maps to the output cards 151, 152 and 153 and the other dynamic or 3D background map to the output cards 154 and 155 according to the control command of the central processor 1121; thus, the output cards 151, 152 and 153 will receive one identical dynamic or 3D background map, respectively, and the output cards 154 and 155 will receive another identical dynamic or 3D background map, respectively.
Then, the output cards 151, 152 and 153 respectively perform intercepting processing and scaling processing on the received dynamic or 3D background image according to the position and size of the loading area of the output cards in the display screen 171, and then output the dynamic or 3D background image to the display screen 171, and finally, a complete dynamic or 3D background image is displayed on the display screen 171 in a splicing manner; similarly, the output cards 154 and 155 respectively perform the clipping process and the scaling process on the received dynamic or 3D background image according to the position and size of the loaded area in the display screen 173, and then output the dynamic or 3D background image to the display screen 173, and finally display another complete dynamic or 3D background image on the display screen 173 in a splicing manner. It is to be understood herein that the display screen 171 and the display screen 173 are not limited to displaying different dynamic or 3D background images, and may also display the same dynamic or 3D background image.
Referring to fig. 3, in other embodiment modes, the main control card 11 may further be provided with a programmable logic device 114. The programmable logic device 114 is electrically connected to the embedded processor 112, and is configured to receive the dynamic or 3D background map drawn by the graphics processor 1123, convert the dynamic or 3D background map into a SerDes signal, and send the SerDes signal to the switch matrix 130 of the switch backplane 13. Here, the use of SerDes signals may simplify the number of interface pins between the master card and switch matrix 130.
As can be seen from the above, the video processing apparatus of this embodiment can implement a flexible and complex large-screen background effect, support a dynamic image and a 3D effect image, and support a high-resolution image, thereby bringing an excellent viewing experience to a user. It should be noted that the foregoing embodiment is to draw a dynamic or 3D background map by the graphics processor 1123, but the embodiment of the present invention does not exclude the application of drawing a static background map based on the graphics processor 1123.
Further, based on the foregoing description, a background map display method as shown in fig. 4 may also be summarized, which includes the steps of:
s41: drawing a dynamic or 3D background image according to the background pixel material, and sending the dynamic or 3D background image to a switching back plate;
s43: controlling the switch backplane to transmit the dynamic or 3D background map to a plurality of output cards; and
s45: and the plurality of output cards respectively process the dynamic or 3D background image according to the position and the size of the loading area of the output cards in a target display screen and then output the processed dynamic or 3D background image to the target display screen.
As for the specific details of each of steps S41, S43, and S45, reference may be made to the detailed description related to the video processing apparatus 10 and the display system 20, which will not be repeated herein.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A background image display method, comprising:
drawing a dynamic or 3D background image according to the background pixel material, and sending the dynamic or 3D background image to a switching back plate;
controlling the switch backplane to transmit the dynamic or 3D background map to a plurality of output cards; and
and the plurality of output cards respectively process the dynamic or 3D background image according to the position and the size of the loading area of the output cards in a target display screen and then output the processed dynamic or 3D background image to the target display screen.
2. The method for displaying a background map according to claim 1, wherein the drawing a dynamic or 3D background map according to background map materials and sending the dynamic or 3D background map to a switch backplane comprises:
drawing the dynamic or 3D background image by a graphics processor built in the embedded processor according to the background image material;
transmitting the dynamic or 3D background image to a programmable logic device, so that the programmable logic device converts the dynamic or 3D background image into a SerDes signal and then sends the SerDes signal to a switching matrix of the switching backplane;
the controlling the switch backplane to communicate the dynamic or 3D background map to a plurality of output cards includes:
the switching matrix of the switching backplane is controlled by a central processor built in the embedded processor to transmit the dynamic or 3D background map to the plurality of output cards.
3. The background image display method according to claim 1 or 2, wherein the processing, by the plurality of output cards, the dynamic or 3D background image according to the position and size of the loaded area thereof in the target display screen and outputting the processed background image to the target display screen comprises:
and intercepting and zooming the dynamic or 3D background image according to the position and the size of the self loading area in the target display screen.
4. A video processing apparatus, comprising:
a switching backplane;
a plurality of output cards electrically connected to the switch backplane; and
the main control card is electrically connected with the exchange back plate and is provided with an embedded processor;
the embedded processor is internally provided with a graphic processor and a central processing unit, the graphic processor is used for drawing a dynamic or 3D background image according to background pixel materials and sending the dynamic or 3D background image to the exchange backboard, the central processing unit is used for controlling the exchange backboard to transmit the dynamic or 3D background image to target output cards in the output cards, and the target output cards are used for processing the dynamic or 3D background image according to the position and the size of a loading area of the target output cards in a target display screen and then outputting the processed dynamic or 3D background image to the target display screen.
5. The video processing device of claim 4, wherein the master card further comprises: the programmable logic device is electrically connected with the embedded processor; the programmable logic device is used for receiving the dynamic or 3D background image drawn by the graphics processor, converting the dynamic or 3D background image into a SerDes signal and then sending the SerDes signal to a switching matrix of the switching backplane.
6. The video processing device according to claim 4, wherein the target output card is specifically configured to perform clipping and scaling processing on the dynamic or 3D background image according to the position and size of the self-loading area in the target display screen, and then output the dynamic or 3D background image to the target display screen.
7. The video processing device of any of claims 4 to 6, wherein the master card and the plurality of output cards are each plug-in secured to the switch backplane.
8. A display system, comprising:
a display screen; and
the video processing device of any of claims 4 to 7, with the display screen as the target display screen.
9. A master control card adapted for application to a video processing device comprising a switching backplane and a plurality of output cards; it is characterized in that the main control card comprises:
the embedded processor is internally provided with a graphic processor and a central processing unit;
the graphics processor is used for drawing a background image according to background image materials and sending the background image to the exchange backboard;
the central processing unit is used for controlling the exchange back plate to transmit the background image to a target output card in the output cards, so that the target output card processes the background image according to the position and the size of the loading area of the target output card in a target display screen and outputs the processed background image to the target display screen.
10. The master card of claim 9, further comprising: the programmable logic device is electrically connected with the embedded processor; the programmable logic device is used for receiving the background image drawn by the graphics processor, converting the background image into a SerDes signal and then sending the SerDes signal to the switching backplane.
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| CN201911347623.5A CN113038036A (en) | 2019-12-24 | 2019-12-24 | Background image display method, video processing equipment, display system and main control card |
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