CN206433068U - Utilize the dispensing device of Double-strand transmission super large resolution ratio and superelevation frame per second vision signal - Google Patents
Utilize the dispensing device of Double-strand transmission super large resolution ratio and superelevation frame per second vision signal Download PDFInfo
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Abstract
Using the dispensing device of Double-strand transmission super large resolution ratio and superelevation frame per second vision signal, including be sequentially connected color space convert unit, YUV gain control units, image segmentation unit, coding unit, D/A converting units；Rgb format is converted into yuv format through color space convert unit and the adjustment of YC is carried out by YUV gain control units by vision signal；Image segmentation unit is divided into some subgraphs to the vision signal after adjustment；Coding unit carries out brightness Y, colourity UV to subgraph and is encoded separately and is converted into analog signal by D/A converting units to be transmitted on twisted pair transmission line；The utility model has that framework cost is low, the simple advantage of mode, beneficial to suppression common mode interference, decay is reduced, the utility model realizes multichannel down conversion process and reduces the bandwidth requirement of every signal transmission and reduce the distortion factor of transmission frequency while effectively prevent because YC interferes the transmission problem of generation.
Description
Technical field
The utility model is related to the dispensing device of vision signal, and in particular to utilize Double-strand transmission super large resolution ratio and super
The dispensing device of high frame-rate video signal.
Background technology
Transmission of video, is particularly suffered from again to the transmission of video of two field picture in people's daily life and production industrial circle
The application wanted.Traditional field simulation HD video transmission belongs to single line transmission by the way of coaxial cable linear transmission,
When transmitting multi-signal, inter-signal interference is big, transmits the limited resolution of video, is easily produced because of external electromagnetic wave interference altogether
Mould is disturbed, and aggravates colourity decay；Furthermore, single coaxial line transmission bandwidth is limited, is directed to similar super large resolution ratio and Hyperframe
For the high frequency video signal of rate, coaxial line unicast communication bandwidth, which is difficult to meet, to be required, and it is higher to be transmitted signal frequency,
Coaxial transmission decay is bigger, and transmission range is shorter；When coaxial line progress video is directly transmitted, image surrounding bright color crosstalk is big；Together
Axis framework cost is higher；Meanwhile, traditional video signal transmission is difficult to carry out early stage processing to vision signal and follows single line
Road brightness and colourity are encoded together, easily produce bright color crosstalk.
Utility model content
There is problem and shortage there is provided first transmission video signal is adjusted in the utility model in order to solve prior art
Processing, then brightness, colourity are separately encoded, then by multi-line transmission means, utilize Double-strand transmission super large resolution ratio
With the dispensing device of superelevation frame per second vision signal.
To achieve the above object, the utility model provides following technical scheme：
Utilize the dispensing device of Double-strand transmission super large resolution ratio and superelevation frame per second vision signal, including the color being sequentially connected
Spend space conversion unit, YUV gain control units, image segmentation unit, parallel encoding unit, D/A converting units；
Rgb format is converted into yuv format and by YUV gain control units by vision signal through color space convert unit
Carry out the adjustment of YC；
Image segmentation unit is divided into some subgraphs to the vision signal after adjustment；
Parallel encoding unit carries out brightness Y, colourity UV to subgraph and is encoded separately and is converted into mould by D/A converting units
Intend signal to be transmitted on twisted pair transmission line.
As an improvement, image segmentation unit includes a scanning element, and the scanning element includes three scanners, institute
State scanner and three interlacing scans are carried out to vision signal, it is final to obtain four width subgraphs.
As an improvement, in addition to concurrency control unit, the concurrency control unit is by switching control through image point
Cut subgraph that unit formed simultaneously and be advanced into parallel encoding unit.
As an improvement, parallel encoding unit includes the number one-to-one corresponding of four encoders, encoder and subgraph.
As an improvement, encoder includes discrete luminance coding module and chroma coder module, the subgraph
As forming luminance signal Y after luminance coding module, carrier chrominance signal C is formed after chroma coder module.
The beneficial effects of the utility model are：Transmission of the Double-strand transmission compared with coaxial cable has that framework cost is low, framework
The simple advantage of mode, and be conducive to suppression common mode to disturb, decay is reduced, meanwhile, the utility model Double-strand transmission is realized
The purpose of multipath signal propagation, realizes multichannel down conversion process and reduces the bandwidth requirement of every signal transmission, further,
The utility model effectively prevent what is produced by bright color crosstalk to the early stage adjustment and YC separation transmission means of transmitting signal
Transmission problem.
Brief description of the drawings
Fig. 1 is structural schematic block diagram of the present utility model.
Fig. 2 is image dividing processing flow chart of the present utility model.
Fig. 3 is coding flow chart of the present utility model.
Fig. 4 is the internal structure schematic diagram of the utility model encoder.
Fig. 5 is luminance coding structure chart of the present utility model.
Fig. 6 is chroma coder flow chart of the present utility model.
Embodiment
Embodiment of the present utility model is further described below.Following examples only carry out further to the application
Illustrate, should not be construed as the limitation to the application.
Utilization Double-strand transmission super large resolution ratio as shown in Figure 1, Figure 2, Figure 3, Figure 4 and the hair of superelevation frame per second vision signal
Send device, including be sequentially connected color space convert unit 1, YUV gain control units 2, image segmentation unit 3, parallel compile
Code unit 4, D/A converting units 5；Rgb format is converted into yuv format through color space convert unit 1 and passed through by vision signal
YUV gain control units 2 carry out the adjustment of YC；Vision signal after 3 pairs of adjustment of image segmentation unit is divided into some
Subgraph；Parallel encoding unit 4 carries out brightness Y, colourity UV to subgraph and is encoded separately and is converted into by D/A converting units 5
Analog signal on twisted pair transmission line to be transmitted；The utility model changes traditional cable transmission with Double-strand transmission
Circuit is transmitted, and because twisted-pair feeder is four groups of separate signal wires, every group of circuit is used to transmit the bright of a secondary subgraph
Carrier chrominance signal, therefore bright, color is carried out after can the vision signal of super large resolution ratio and superelevation frame per second be split and is encoded separately passing
It is defeated, avoid light tone from disturbing while realizing frequency reducing, the single signal transmission bandwidth load for renting twisted-pair feeder of reduction and requirement.
Further, the utility model additionally uses color space convert unit 1, YUV gain control units 2 and video is believed
Number pre-processed, RGB coded system video datas are converted into corresponding YUV coded systems according to NTSC or pal mode
Video data, Gain tuning is carried out to Y, U, V by YUV gain units 2 after yuv format is converted into, the utility model draws
The mode of the vision signal early stage processing entered, vision signal is converted to by rgb format the YUV lattice for being more suitable for encoding and transmitting
Formula is easy to separate bright chroma information, it is to avoid light tone is disturbed；And YUV gains are controlled, it is that YUV three-components are controlled respectively, can reaches
More preferable visual effect, further, it is adjusted to faint variate-value, is easy to subsequent transmission, to prevent small-signal
Decay causes subsequent acquisition and its difficulty；Further, the utility model is creatively by the good yuv format vision signal of gain
The image segmentation of diversified forms is carried out into image segmentation unit 3, concrete mode system uses different scan modes, and such as interlacing is swept
Retouch etc. and the video information of input is scanned untill so that vision signal meets the transmission requirement of twisted pair transmission line, scheme
As the introducing of cutting unit 3 make it that the video information of script super large resolution ratio and superelevation frame per second obtains multiple segmentation, and according to
The result of segmentation carries out multi-line transmission, realizes the purpose of frequency reducing, and with the video information for being divided into multigroup subgraph, its is right
The bandwidth requirement of transmission cable is also correspondingly reduced, both served so that it is relatively independent between subgraph video information, avoid mutually
Mutually the effect of interference, reduces the bandwidth pressure of sin-gle twisted pair again, it is to avoid high frequency video signal attenuation is big, it is short to transmit
Problem.
Last the utility model employs according to the subgraph quantity after segmentation each subgraph being directed respectively into each simultaneously
Row coding unit 4, the segmented good subgraph of 4 pairs of parallel encoding unit carries out the separation of colourity and brightness again, if that is,
Originally after the subgraph that splits is 4 width, the then encoded brightness of unit 4 and chrominance separation, the transmission signal separately formed is 8
It is individual, it is respectively each self-corresponding brightness Y of 4 width subgraphs after splitting through image segmentation unit 3 and the transmission signal of chrominance C, totally 8
It is individual, it is to avoid the crosstalk of image surrounding light tone when transmission of video, it is ensured that final video transmission reduction degree, resolution ratio, definition
It is less to there is distortion situation all in higher standard.
As an improvement embodiment, as shown in Fig. 2 image segmentation unit 3 includes scanning element 31,
Scanning element 31 carries out three scanning to vision signal to obtain subgraph, and the utility model is believed video by the way of scanning
Number split, be simply easily achieved, and because each scanning element 31 scan mode, scanning number of times it is different, Ke Yigen
The scan mode corresponding to different scanning elements 31 is selected according to the real needs of subgraph number, a variety of points can be specifically used
The mode of cutting is scanned, e.g., interlacing, by column split etc., if demand is more, can by one or more it is identical or
Different scanning elements 31 carries out multiple scanning or cross scan is achieved, and the image partitioning scheme of scanning has been conducive to
Site preparation retains all compositions of original image, it is only necessary to which by the part for scanning segmentation, according to the method for scanning, split can be complete again
After the combination of paired subgraph, i.e. scanning segmentation, the restructuring of subgraph is also easily realized and can mutually correlated, operability
By force.
As an improvement embodiment, as shown in Fig. 2 the scanning element 31 includes three scanners 311,
It is interlacing scan 0, interlacing scan 1 and interlacing scan 2 respectively.Yuv data (4*M, 4*N) is sent into the interlacing of image segmentation unit
Scanning 0, by the big image in different resolution interlacing scan of the single frames of above-mentioned input, obtains odd-numbered line scanned picture (2*M, 4*N) and even number
Row scanned picture (2*M, 4*N)；Above-mentioned two width subgraph is subjected to interlacing scan respectively again, the final segmentation figure picture of four width is obtained
(M, 4*N).The utility model system is transmitted for super large resolution ratio and superelevation frame per second vision signal, in order to meet frequency reducing, drop
Low each circuit undertakes signal bandwidth to reach the purpose of bandwidth requirement of the present utility model.
As an improvement embodiment, as shown in figure 1, utilization Double-strand transmission super large of the present utility model point
The dispensing device of resolution and superelevation frame per second vision signal, in addition to concurrency control unit 6, concurrency control unit 6 are controlled through image
Subgraph that cutting unit 3 is formed simultaneously and is advanced into parallel encoding unit 4, and concurrency control unit 6 is all through figure to cause
The subgraph formed as cutting unit 3 can be simultaneously, it is parallel must enter parallel encoding unit 4 so that parallel encoding list
Member 4 can be handled subgraph simultaneously, and coding unit 4 includes four encoders 41, can be specifically, in each encoder 41
Front end disposes a parallel control switch, ensures that signal enters encoder 41 simultaneously, while single encoder 41 can also be selected
Conducting, that is, carried out in one-channel signal transmission, such as independent control, Fig. 4, and it is logical that 4 parallel control of control of concurrency control unit 6 are switched
It is disconnected, it so as to optimum choice signal transfer mode, for forms such as low frequency signals, can split without image, only open
One encoder 41 carries out light tone and separately transmitted, and is equally applicable to pass using a pair of circuits of twisted-pair feeder, i.e. the utility model
System low frequency signal is transmitted.
As an improvement embodiment, it is described to compile as shown in figure 4, coding unit 4 includes four encoders 41
The number of code device 41 and subgraph is corresponded；One-to-one encoder 41 can guarantee that all 3 points of process image segmentation units
To cut the subgraph to be formed can parallel, independently be encoded, it is to avoid interference each other accelerates coding pass simultaneously, carries
High efficiency, the setting of four encoders 41 can at utmost coordinate the setting of Double-strand transmission mode, rationally efficiently.
As an improvement embodiment, as shown in figure 4, the encoder 41 include discrete brightness compile
Code module 42 and chroma coder module 43, subgraph forms luminance signal Y after luminance coding module 42, through chroma coder module
Carrier chrominance signal C is formed after 43；41 points by encoder of the utility model is two coding modules, is the He of luminance coding module 42 respectively
Chroma coder module 43, the subgraph after luminance coding module 42 and chroma coder module 43 can be formed luminance signal Y and
Carrier chrominance signal C, the characteristics of due to yuv format itself, wherein Y is luminance component, and UV is chromatic component, therefore encoder 41 is real
Border has carried out the luminance coding and UV components of Y-component by luminance coding module 42 and chroma coder module 43 to yuv format
Chroma coder, so that the brightness and chrominance section in subgraph are just able to distinguish and form transmission letter respectively in coding
Number, if that is, correspondingly image is divided into 4 subgraphs by image segmentation unit 3, now encoded device 41 carries out YC
Be encoded separately after, that is, form 8 transmission signals, this 8 transmission signals are carrier chrominance signal C and the brightness of 4 subgraphs respectively
Signal Y, thus afterwards line transmission when, luminance signal Y and carrier chrominance signal C also can respective individual transmission, that is, avoid transmitting procedure
The mutual crosstalk phenomenon of middle bright signal.
As an improvement embodiment, as shown in figure 5, luminance component of the luminance coding module by input picture
Formed plus timing synchronization cell encoding, each two field picture luminance coding can be divided into frame blanking interval and frame effective video is interval,
Wherein frame blanking interval includes equalizing signal row, frame synchronizing signal row and normal blank lines；And the interval row of frame effective video is main
For transmitting effective video luminance component.
Luminance coding module 42 described in the utility model includes timing synchronization unit 421, the timing synchronization unit 421
Generation clock signal is simultaneously attached on luminance signal Y, needed to brightness due to luminance coding module 42 and chroma coder module 43 and
Colourity be separately encoded generating luminance signal Y and carrier chrominance signal C separately to be transmitted, same in order to ensure
The luminance signal Y and carrier chrominance signal C of subgraph can be easier to make for reconfiguring recovering after being transmitted after the completion of coding
Intactly subgraph, because the situation in transmission path, speed, the path of transmission etc. can all have influence on luminance signal Y and colourity
Signal C uniformity, thus by timing synchronization unit 421 on luminance signal Y synchronous sequence, specific system is attached to luminance signal Y
Signal blanking zone, the later stage decode when, carrier chrominance signal C sequential is together controlled by the synchronizing signal decoded on luminance signal Y,
Luminance signal Y and carrier chrominance signal C can be carried out again according to the clock signal decoded on luminance signal Y i.e. when being transmitted
Unified so that easily to recover after being transmitted, simple flow and the accuracy for ensureing transmission reduce the probability of error of transmission.
As an improvement embodiment, as shown in fig. 6, chroma coder module 43 passes through direct-type numerical frequency
The sinusoidal signal for the fixed frequency that synthesizer DDS is produced is carried out as chrominance carrier and chromatic component U and V and colour burst signal
Quadrature amplitude modulation synthesis carrier chrominance signal C；Due to the characteristic of yuv format, its chromatic component is divided into two components of UV, in order to more preferable
UV components are unified on ground to be turned into uniformly carrier chrominance signal C and is conducive to transmission, and the utility model employs the sinusoidal letter of fixed frequency
Number as chrominance carrier carry out quadrature amplitude modulation synthesis carrier chrominance signal C, wherein, sinusoidal signal according to DDS principles produce, tool
Body process is：It is assumed that original clock frequency is Q, it is necessary to which the frequency produced is P, according to Nyquist law, P is less than or equal to Q/2.
Using the accumulator of 32, the step-length P*232/Q of one 32 is added in each clock time, by tiring out for accumulator each moment
Value added output, and the phase of frequency needed for the value after accumulator, modulus is is re-fed into 232 modulus to it.Made with phase
For index, certain table is inquired about, you can the sine wave signal of frequency needed for producing；The row quadrature amplitude modulation synthesizes carrier chrominance signal
C obtains above-mentioned synthetic method and has unified UV components so that chromatic component UV can be transmitted in the form of carrier chrominance signal C, be simplified
Transfer process, both synthesize main reduction transmission channel all the way, and beneficial to unitized operation.
It the above is only preferred embodiment of the present utility model, protection domain of the present utility model is not limited merely to above-mentioned
Embodiment, all technical schemes belonged under the utility model thinking belong to protection domain of the present utility model.It should be pointed out that pair
For those skilled in the art, some improvements and modifications under the premise of the utility model principle is not departed from,
These improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (8)
1. utilize the dispensing device of Double-strand transmission super large resolution ratio and superelevation frame per second vision signal, it is characterised in that：Including according to
Color space convert unit (1), YUV gain control units (2), image segmentation unit (3), the parallel encoding unit of secondary connection
(4), D/A converting units (5)；
Rgb format is converted into yuv format and by YUV gain control units by vision signal through color space convert unit (1)
(2) adjustment of YC is carried out；
Image segmentation unit (3) is divided into some subgraphs to the vision signal after adjustment；
Parallel encoding unit (4) carries out brightness Y, colourity UV to subgraph and is encoded separately and is converted into by D/A converting units (5)
Analog signal on twisted pair transmission line to be transmitted.
2. dispensing device according to claim 1, it is characterised in that：Described image cutting unit (3) includes a scanning
Unit (31), the scanning element (31) includes three scanners (311), and the scanner carries out three interlacing to vision signal and swept
Retouch, it is final to obtain four width subgraphs.
3. dispensing device according to claim 1 or 2, it is characterised in that：Also include concurrency control unit (6), it is described simultaneously
Row control unit (6) is switched by parallel control to be controlled the subgraph formed through image segmentation unit (3) simultaneously and is advanced into
Parallel encoding unit (4).
4. dispensing device according to claim 1 or 2, it is characterised in that：The parallel encoding unit (4) includes four volumes
Code device (41), the encoder (41) and the number of subgraph are corresponded.
5. dispensing device according to claim 4, it is characterised in that：The encoder (41) includes discrete brightness
Coding module (42) and chroma coder module (43), the subgraph form luminance signal Y after luminance coding module (42), warp
Chroma coder module (43) forms carrier chrominance signal C afterwards.
6. dispensing device according to claim 5, it is characterised in that：It is same that the luminance coding module (42) includes sequential
Unit (421) is walked, timing synchronization unit (421) the generation clock signal is simultaneously attached on luminance signal Y.
7. dispensing device according to claim 5, it is characterised in that：Chroma coder module (43) passes through direct-type numeral frequency
The sinusoidal signal for the fixed frequency that rate synthesizer DDS is produced is entered as chrominance carrier with chromatic component U and V and colour burst signal
Row quadrature amplitude modulation synthesis carrier chrominance signal C.
8. dispensing device according to claim 1, it is characterised in that：Color space convert unit (1) is according to NTSC or PAL
RGB coded system video datas are converted into the video data of corresponding YUV coded systems by standard.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106303345A (en) * | 2016-09-29 | 2017-01-04 | 杭州雄迈集成电路技术有限公司 | A kind of dispensing device utilizing Double-strand transmission super large resolution and superelevation frame per second video signal |
| CN107770509A (en) * | 2017-10-25 | 2018-03-06 | 上海觉感视觉科技有限公司 | Pass through the method and device of YUV channel transfer MONO format-patterns |
| CN110913192A (en) * | 2019-10-14 | 2020-03-24 | 珠海亿智电子科技有限公司 | Display processing method and device |
| CN114501142A (en) * | 2022-01-27 | 2022-05-13 | 中国第一汽车股份有限公司 | Twisted pair-based data transmission method and device, electronic equipment and storage medium |
| CN117560460A (en) * | 2024-01-12 | 2024-02-13 | 杭州海康威视数字技术股份有限公司 | Conversion circuit for video analog signal transmission |
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2016
- 2016-09-29 CN CN201621092852.9U patent/CN206433068U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106303345A (en) * | 2016-09-29 | 2017-01-04 | 杭州雄迈集成电路技术有限公司 | A kind of dispensing device utilizing Double-strand transmission super large resolution and superelevation frame per second video signal |
| CN107770509A (en) * | 2017-10-25 | 2018-03-06 | 上海觉感视觉科技有限公司 | Pass through the method and device of YUV channel transfer MONO format-patterns |
| CN110913192A (en) * | 2019-10-14 | 2020-03-24 | 珠海亿智电子科技有限公司 | Display processing method and device |
| CN110913192B (en) * | 2019-10-14 | 2021-09-24 | 珠海亿智电子科技有限公司 | Display processing method and device |
| CN114501142A (en) * | 2022-01-27 | 2022-05-13 | 中国第一汽车股份有限公司 | Twisted pair-based data transmission method and device, electronic equipment and storage medium |
| CN117560460A (en) * | 2024-01-12 | 2024-02-13 | 杭州海康威视数字技术股份有限公司 | Conversion circuit for video analog signal transmission |
| CN117560460B (en) * | 2024-01-12 | 2024-04-09 | 杭州海康威视数字技术股份有限公司 | Conversion circuit for video analog signal transmission |
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Address after: 311400 4th floor, building 9, Yinhu innovation center, No. 9, Fuxian Road, Yinhu street, Fuyang District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou xiongmai integrated circuit technology Co.,Ltd. Address before: Hangzhou City, Zhejiang Province, 311422 Silver Lake Street Fu Road No. 9 silver lake leisure Innovation Center 9 building 12 room 1210 Patentee before: HANGZHOU XIONGMAI INTEGRATED CIRCUIT TECHNOLOGY Co.,Ltd. |
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