CN105741753A - Receiving card, LED display control and recording system and LED display control method - Google Patents
Receiving card, LED display control and recording system and LED display control method Download PDFInfo
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- CN105741753A CN105741753A CN201610077585.6A CN201610077585A CN105741753A CN 105741753 A CN105741753 A CN 105741753A CN 201610077585 A CN201610077585 A CN 201610077585A CN 105741753 A CN105741753 A CN 105741753A
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- 238000000034 method Methods 0.000 title claims abstract description 54
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 238000013461 design Methods 0.000 abstract description 2
- 230000035611 feeding Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 4
- 238000000605 extraction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/20—Circuitry for controlling amplitude response
- H04N5/202—Gamma control
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/14—Picture signal circuitry for video frequency region
- H04N5/20—Circuitry for controlling amplitude response
- H04N5/205—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic
- H04N5/208—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0127—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level by changing the field or frame frequency of the incoming video signal, e.g. frame rate converter
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The present invention relates to a receiving card, an LED display control and recording system adopting the receiving card and an LED display control method, wherein the LED display control method comprises the steps of receiving an input video based on the function design of the receiving card, wherein the input video comprises a first video frame and a second video frame which are inputted in an alternating manner; changing a display starting point of the second video frame relative to the first video frame and/or changing the display duration of the second video frame to obtain a target video; and outputting the target video to drive an LED display screen to display. Therefore, the present invention provides the technical scheme that the frame display duration in the LED display screen and the phases can be adjusted in the receiving card, and the purpose that the LED display screen is used as the background application during the living broadcast, and the frame display duration in the LED display screen and the phases can be adjusted on the basis of not influencing the feedings of the field audiences to the LED display screen, so that different advertisement content can be displayed and played in different regions, is achieved.
Description
Technical field
The present invention relates to LED display control technology field, particularly relate to receiving card, adopt the LED of this kind of receiving card to show control and recording system and LED display control method.
Background technology
In some LED screen environment as a setting, such as football pitch etc., LED screen is applied mainly as the carrier of a kind of advertisement.Time live, live for different regions, live television advertising business will in the live middle advertisement that content in LED screen is replaced to different regions so that the value maximization of advertisement.
Specifically, referring to Fig. 1, content is play (contentplayout) device and video source is exported LED display controller, after video source being processed by LED controller, video signal is exported in receiving card, then the LED drive chip driven in LED display in LED lamp panel by receiving card allows LED display carry out picture to show.Wherein, content player typically carries out video source output with the frame frequency of 100HZ (or 120HZ), wherein having a frame in two frames is live commercial video (in Fig. 2 unfilled rectangle frame), and an other frame is special video (such as the rectangle frame that Fig. 2 bend is filled) the such as red picture inserted；Synchronizing signal is had to carry out between content player with video camera synchronize, thus when content player plays the special video frame inserted, the special video of this insertion that video camera sync pulse jamming LED display shows, in order to the special video of this insertion can be replaced by corresponding advertisement in live.
But, owing to the special video source of aforementioned live commercial video source and insertion is all the video (as shown in Figure 2) of 50HZ (or 60HZ), if not doing special process, owing to the video content of two frames is different, the spectators that can cause scene feel that LED screen is glimmered, and human eye is uncomfortable.
Summary of the invention
Therefore, for overcoming defect of the prior art and deficiency, the present invention proposes a kind of receiving card, a kind of LED display control adopting this kind of receiving card and recording system and a kind of LED display control method.
Specifically, a kind of receiving card that the embodiment of the present invention proposes, it is used for driving LED display.Described receiving card includes: memory access controls module；Image receiver module, for receiving input video and the first frame of video inputted in an alternating manner in described input video and the second frame of video being controlled in the storage space that module stores is extremely different via described memory access；First image conversion and gray scale abstraction module, for via described memory access control module take out from memorizer described first frame of video carry out image conversion and gray scale extract with the first frame of video after being processed and by the first frame of video after described process via in described memory access control module stores to memorizer；First image-driven module, is driven output for controlling the first frame of video after module takes out described process from memorizer via described memory access；Second image conversion and gray scale abstraction module, for via described memory access control module take out from memorizer described second frame of video carry out image conversion and gray scale extract with the second frame of video after being processed and by the second frame of video after described process via in described memory access control module stores to memorizer；Second image-driven module, is driven output for controlling the second frame of video after module takes out described process from memorizer via described memory access；Image output multi-channel Multiplexing module, exports for the second frame of video after the described process of the first frame of video after the described process of described first image-driven module output and described second image-driven module output is combined into output video；And frame display phase place and duration adjustment module, for export select signal using control the first frame of video after described image output multi-channel Multiplexing module selects the described process of described first image-driven module output as the time span of output and initial/end point and after selecting the described process of described second image-driven module output the second frame of video as the time span of output and initial/end point.
In one embodiment of the invention, the frame frequency of described input video is 100HZ or 120HZ.
In one embodiment of the invention, described selection signal is made up of logical zero level and logical one level；When described selection signal is logical zero, after the described process of the described first image-driven module output of described image output multi-channel Multiplexing module selection, the first frame of video is as output；And when selection signal is logical one, after the described process of the described second image-driven module output of described image output multi-channel Multiplexing module selection, the second frame of video is as output.
Additionally, a kind of LED display that the embodiment of the present invention proposes controls and recording system, including: content player, LED display controller, LED display, video camera and any one receiving card aforementioned.Described content player is for by video source output to described LED display controller, described input video output extremely described receiving card is obtained after described video source being processed by described LED display controller, being obtained described output video exporting to described LED display by described receiving card according to described input video again to display, described video camera carries out synchronize to shoot the des in described first frame of video and described second frame of video that described LED display shows by synchronizing signal with described content player.
Furthermore, a kind of LED display control method that the embodiment of the present invention proposes, including step: receive input video and the first frame of video inputted in an alternating manner in described input video and the second frame of video stored to different storage space；From memorizer, take out described first frame of video carry out image conversion and gray scale and extract with the first frame of video after being processed and the first frame of video after described process stored to memorizer；After taking out described process from memorizer, the first frame of video is driven output；From memorizer, take out described second frame of video carry out image conversion and gray scale and extract with the second frame of video after being processed and the second frame of video after described process stored to memorizer；After taking out described process from memorizer, the second frame of video is driven output；And produce to select signal to control to deliver to the first frame of video after driving the process of output time span and initial/end point that target LED display displays and the second frame of video after the process of output is delivered to time span and initial/end point that described target LED display displays.
In one embodiment of the invention, the frame frequency of described input video is 100HZ or 120HZ.
In one embodiment of the invention, described selection signal is made up of logical zero level and logical one level；When described selection signal is logical zero, selects that the first frame of video after the process of driving output is delivered to target LED display and display；And when selection signal is logical one, selects that the second frame of video after the process of driving output is delivered to target LED display and display.
Finally, a kind of LED display control method that another embodiment of the present invention proposes, including step: receiving input video, wherein said input video includes the first frame of video and the second frame of video that input in an alternating manner；Change described second frame of video and relative to the display starting point of described first frame of video and/or change the display duration of described second frame of video to obtain target video；And export described target video to drive target LED display to display.
As from the foregoing, the embodiment of the present invention proposes to realize the technical scheme of frame display duration and phase-adjustable joint in LED display on receiving card, solve live middle LED display to apply as a setting, not affecting, the basis that LED display is experienced by audience realizes the scalable of frame display duration and phase place in LED display, such that it is able to solve different regions display to play different this difficult problem of ad content.
By the detailed description below with reference to accompanying drawing, other side and the feature of the present invention become apparent upon.It is understood that this accompanying drawing is only the purpose design of explanation, not as the restriction of the scope of the present invention.It should also be noted that unless otherwise noted, it is not necessary to scale accompanying drawing, they only try hard to structure described herein and flow process are described conceptually.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Fig. 1 is the configuration diagram of a kind of LED display control and recording system.
Fig. 2 is the view of the frame of video in the video source of the output of content player shown in Fig. 1.
Fig. 3 is the functional block diagram of a kind of receiving card that the embodiment of the present invention proposes.
Fig. 4 is that receiving card shown in Fig. 3 realizes frame display phase place and the process schematic of duration adjustment.
Fig. 5 is that receiving card shown in Fig. 3 realizes frame display phase place and the result schematic diagram of duration adjustment.
Detailed description of the invention
Understandable for enabling the above-mentioned purpose of the present invention, feature and advantage to become apparent from, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
For playing two kinds of frame of video in prior art in an alternating manner simultaneously, the embodiment of the present invention can cause that the spectators at scene feel LED screen flicker, the uncomfortable technical problem of human eye, then propose in live, camera shutter time is made to shorten, thus the display time of the special video inserted can be very short, thus can reach to replace the effect of the ad content play in LED screen on the basis have little influence on audience.
Specifically, the embodiment of the present invention proposes to realize frame of video display phase place and the adjustable technical scheme of duration on receiving card, owing to there being synchronizing signal to carry out synchronize (with reference to Fig. 1) between content player with video camera, such that it is able to it is consistent with the time of exposure of video camera to regulate the special video frame inserted, by controlling the frame display duration of exposure time and the special video of insertion, make video camera can just intercept out by the special video of insertion, thus conveniently replacing with the advertisement video of different regions in live telecast.
Referring to Fig. 3, the functional block diagram of its a kind of receiving card proposed for the embodiment of the present invention.In figure 3, the receiving card 30 of the present embodiment includes image receiver module 31, image conversion and gray scale abstraction module 32 and 33, image-driven module 34 and 35, memory access controls module 36, frame shows phase place and duration adjustment module 37 and image output multi-channel Multiplexing module 38.
Wherein, image receiver module 31 is used for receiving the input video of default frame frequency such as 100HZ (or 120HZ) and the first frame of video inputted in an alternating manner in the input video received and the second frame of video being delivered to memory access controlling module 36 to be respectively stored in different storage space；Image conversion and gray scale abstraction module 32,33 for being respectively completed the first frame of video and the process of the second frame of video under the field sync signal of the half such as 50HZ (or 60HZ) of the frame frequency that frequency is input video of image receiver module 31 offer, it controls module 36 mainly by memory access and takes out frame of video from dynamic RAM and complete gamma conversion, correction, gray scale extraction etc. and operate, and then passes through memory access control module 36 and the frame of video after completing image procossing and gray scale extraction is stored to dynamic RAM；Display between image-driven module 34,35 and synchronize and be respectively used to control module 36 by memory access and from dynamic RAM, takes out the first frame of video after image procossing and gray scale extract and the second frame of video is driven exporting；Frame shows that phase place and duration adjustment module 37 select signal to select with the output to image-driven module 34,35 for exporting, namely control image output multi-channel Multiplexing module 38 selects the first frame of video of driving output to drive the second frame of video exported as the time span exported and to initiate/end point as the time span exported and initial/end point and selection；Finally, video frequency output will be carried out with frame frequency 100HZ (or 120HZ) by image output multi-channel Multiplexing module 38.
Referring to Fig. 4, it is the process schematic that the receiving card 30 of the embodiment of the present invention realizes frame display phase place and duration regulates.In the diagram, VS1 is the display starting point (also a display end point of A frame) of B frame (such as corresponding second frame of video), and VS2 is the display end point (also another display starting point of A frame) of B frame；In order to A frame (such as corresponding first frame of video), B frame are exported simultaneously, produce A, B frame as shown in Figure 4 and select signal, low level (namely logical zero) time candidate's A frame as output, high level (namely logical one) time candidate's B frame as output.When specifically regulating, a) display phase place (namely B frame is relative to display starting point of A frame) can be locked, only regulate display duration；B) display duration (namely length of VS1 to VS2) can be locked, only regulate display phase place；And display phase place and duration c) can also be regulated simultaneously.
Referring to Fig. 5, it is the result schematic diagram that the receiving card 30 of the embodiment of the present invention realizes frame display phase place and duration regulates.The left side is the view of the first frame of video of exporting in an alternating manner of content player and the second frame of video, and the right is the view of the first frame of video after receiving card 30 shown in Fig. 3 processes and the second frame of video；In the practical application shown in Fig. 1, the rectangle frame that Fig. 5 bend is filled is corresponding live commercial frame of video such as, the special video frame that unfilled rectangle frame correspondence is inserted, thus when LED screen shows, it is achieved the display starting point (namely frame display phase place) of the special video frame of insertion and the display equal scalable of duration.
In sum, the embodiment of the present invention proposes and realizes frame of video display phase place and the adjustable technical scheme of duration in LED display on receiving card, solve live middle LED display to apply as a setting, not affecting, the basis that LED display is experienced by audience realizes the display phase place of frame of video in LED display and the scalable of duration, such that it is able to solve different regions display to play different this difficult problem of ad content.
The above, it it is only presently preferred embodiments of the present invention, not the present invention is done any pro forma restriction, although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention, any those skilled in the art, without departing within the scope of technical solution of the present invention, when the technology contents of available the disclosure above makes a little change or is modified to the Equivalent embodiments of equivalent variations, in every case it is without departing from technical solution of the present invention content, according to any simple modification that above example is made by the technical spirit of the present invention, equivalent variations and modification, all still fall within the scope of technical solution of the present invention.
Claims (8)
1. a receiving card, is used for driving LED display；It is characterized in that, described receiving card includes:
Memory access controls module；
Image receiver module, for receiving input video and the first frame of video inputted in an alternating manner in described input video and the second frame of video being controlled in the storage space that module stores is extremely different via described memory access；
First image conversion and gray scale abstraction module, for via described memory access control module take out from memorizer described first frame of video carry out image conversion and gray scale extract with the first frame of video after being processed and by the first frame of video after described process via in described memory access control module stores to memorizer；
First image-driven module, is driven output for controlling the first frame of video after module takes out described process from memorizer via described memory access；
Second image conversion and gray scale abstraction module, for via described memory access control module take out from memorizer described second frame of video carry out image conversion and gray scale extract with the second frame of video after being processed and by the second frame of video after described process via in described memory access control module stores to memorizer；
Second image-driven module, is driven output for controlling the second frame of video after module takes out described process from memorizer via described memory access；
Image output multi-channel Multiplexing module, exports for the second frame of video after the described process of the first frame of video after the described process of described first image-driven module output and described second image-driven module output is combined into output video；And
Frame display phase place and duration adjustment module, for export select signal using control the first frame of video after described image output multi-channel Multiplexing module selects the described process of described first image-driven module output as the time span of output and initial/end point and after selecting the described process of described second image-driven module output the second frame of video as the time span of output and initial/end point.
2. receiving card as claimed in claim 1, it is characterised in that the frame frequency of described input video is 100HZ or 120HZ.
3. receiving card as claimed in claim 1, it is characterised in that described selection signal is made up of logical zero level and logical one level；When described selection signal is logical zero, after the described process of the described first image-driven module output of described image output multi-channel Multiplexing module selection, the first frame of video is as output；And when selection signal is logical one, after the described process of the described second image-driven module output of described image output multi-channel Multiplexing module selection, the second frame of video is as output.
4. LED display controls and a recording system, including: content player, LED display controller, LED display, video camera and the receiving card as described in claims 1 to 3 any one；Described content player is for by video source output to described LED display controller, described input video output extremely described receiving card is obtained after described video source being processed by described LED display controller, being obtained described output video exporting to described LED display by described receiving card according to described input video again to display, described video camera carries out synchronize to shoot the des in described first frame of video and described second frame of video that described LED display shows by synchronizing signal with described content player.
5. a LED display control method, it is characterised in that include step:
Receive input video and the first frame of video inputted in an alternating manner in described input video and the second frame of video are stored to different storage space；
From memorizer, take out described first frame of video carry out image conversion and gray scale and extract with the first frame of video after being processed and the first frame of video after described process stored to memorizer；
After taking out described process from memorizer, the first frame of video is driven output；
From memorizer, take out described second frame of video carry out image conversion and gray scale and extract with the second frame of video after being processed and the second frame of video after described process stored to memorizer；
After taking out described process from memorizer, the second frame of video is driven output；And
Produce to select signal to control to deliver to the first frame of video after driving the process of output time span and initial/end point that target LED display displays and the second frame of video after the process of output is delivered to time span and initial/end point that described target LED display displays.
6. LED display control method as claimed in claim 5, it is characterised in that the frame frequency of described input video is 100HZ or 120HZ.
7. LED display control method as claimed in claim 5, it is characterised in that described selection signal is made up of logical zero level and logical one level；When described selection signal is logical zero, selects that the first frame of video after the process of driving output is delivered to target LED display and display；And when selection signal is logical one, selects that the second frame of video after the process of driving output is delivered to target LED display and display.
8. a LED display control method, it is characterised in that include step:
Receiving input video, wherein said input video includes the first frame of video and the second frame of video that input in an alternating manner；
Change described second frame of video and relative to the display starting point of described first frame of video and/or change the display duration of described second frame of video to obtain target video；And
Export described target video to drive target LED display to display.
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| CN201610077585.6A CN105741753B (en) | 2016-02-03 | 2016-02-03 | Receive card, LED display controls and recording system, LED display control methods |
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| CN201610077585.6A CN105741753B (en) | 2016-02-03 | 2016-02-03 | Receive card, LED display controls and recording system, LED display control methods |
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| CN106412459A (en) * | 2016-09-30 | 2017-02-15 | 佛山市青松科技股份有限公司 | Image display system and method |
| CN106652897A (en) * | 2016-12-26 | 2017-05-10 | 西安诺瓦电子科技有限公司 | Led display screen control system |
| CN106652896A (en) * | 2016-12-26 | 2017-05-10 | 西安诺瓦电子科技有限公司 | Scanning card |
| CN106652893A (en) * | 2016-12-26 | 2017-05-10 | 西安诺瓦电子科技有限公司 | Led display screen control system |
| CN106652895A (en) * | 2016-12-26 | 2017-05-10 | 西安诺瓦电子科技有限公司 | Scanning card |
| CN106652894A (en) * | 2016-12-26 | 2017-05-10 | 西安诺瓦电子科技有限公司 | Led display screen control system |
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| CN114783355A (en) * | 2022-03-31 | 2022-07-22 | 西安诺瓦星云科技股份有限公司 | LED display method and device, electronic equipment and readable storage medium |
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