CN102523458A - Encoding and decoding method for wireless transmission of high-definition image and video - Google Patents
Encoding and decoding method for wireless transmission of high-definition image and video Download PDFInfo
- Publication number
- CN102523458A CN102523458A CN2012100090047A CN201210009004A CN102523458A CN 102523458 A CN102523458 A CN 102523458A CN 2012100090047 A CN2012100090047 A CN 2012100090047A CN 201210009004 A CN201210009004 A CN 201210009004A CN 102523458 A CN102523458 A CN 102523458A
- Authority
- CN
- China
- Prior art keywords
- frame
- video
- image
- coding
- decoding method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
The invention discloses an encoding and decoding method for wireless transmission of high-definition images and videos. The encoding and decoding method comprises an encoding method and a decoding method. The encoding method comprises the following steps of: firstly adopting a 4:4:4 YCbCr sampling format to take the same sampling resolution to Y, Cb and Cr components, wherein Y component is stored as an original frame; then according to the need, sampling Cb and Cr for n times (n being more than or equal to 2) and storing respectively as an enhanced frame 1, an enhanced frame 2 and an enhanced frame n. During the wireless transmission of the videos, the transmission of the original frame is guaranteed firstly, a time tag is added at the header of the original frame, a decoding end firstly obtains the time tag at the header of a video stream, comparison with a local clock is made to calculate network time delay, the network time delay is fed back to an encoding end and the corresponding enhanced frames are respectively transmitted according to the need. By separating chrominance from luminance and progressively transmitting the chrominance, chrominance components which are insensitive to human eyes in image signals are properly reduced and the problem that the time delay of the transmission of high-definition images in a wireless network is large is effectively solved.
Description
Technical field
The present invention relates to a kind of decoding method that is suitable for high-definition image video wireless transmission.
Background technology
For a long time, the low bandwidth of the big data quantity of image and video and 3G wireless network is a bottleneck of restriction image/video information real-time transmission.In order to guarantee the real-time of image/video transmission, reduce the resolution of image/video during the mode that generally adopts, utilize the quality of image/video to reduce the real-time that exchanges the image/video wireless transmission for.This method is for some specific environment and inapplicable, and for example evidence etc. is gathered in the scene of a crime, for example offender's fingerprint, palmmprint, face etc., and we generally require the resolution of image high as much as possible, but lower comparatively speaking for the requirement of image color.
Summary of the invention
The objective of the invention is for overcoming the deficiency of above-mentioned prior art, provide a kind of look to show the score from the video coding-decoding method of, colourity layering and the network bandwidth adaptive through joining day label in the primitive frame.The present invention provides a kind of effective solution for the transmission of high-definition picture real-time video.
For realizing above-mentioned purpose, the present invention adopts following technical proposals:
A kind of decoding method that is suitable for high-definition image video wireless transmission comprises Code And Decode two parts, and its characteristic is following:
Described coding method comprises following steps:
(1) image video signal is at first adopted the YCbCr sample format of 4:4:4, Y, Cb, Cr are divided take identical sampling resolution, the Y component is preserved as primitive frame;
(2) Cb and Cr are carried out the ZT coding, carrier chrominance signal are decomposed into the n layer, respectively as enhancement frame 1, enhancement frame 2 ... enhancement frame n preserves, and wherein n is the natural number more than or equal to 2;
(3) in the video wireless transmission process, joining day label in primitive frame, the primitive frame of the free label of transport tape at first, the network delay situation that feeds back in real time according to decoding end then, the number of plies of decision transmission enhancement frame;
Described coding/decoding method comprises following steps:
(1) decoding end calculates network delay, and feeds back to coding side according to the time tag in the primitive frame that receives video image, and utilizes primitive frame to restore the luminance component of image, forms the image/video frame that does not have color component;
The enhancement frame of the image that (2) sends according to coding side is differentiated and is restored the respective image enhancement frame;
(3) image/video frame and image enhancement frame are superimposed, synthetic complete video image reassembled frame.
In video wireless transmission process, also according to the number of plies of the corresponding enhancement frame of real-time bandwidth and user's request decision transmission.
The said network delay situation that feeds back in real time is meant when coding joining day label in primitive frame, and decoding end is at first obtained video flowing head time tag, and through with local clock contrast, computing network time-delay, and feed back to coding side.
Said time tag joins the head or the centre of primitive frame.
The number of plies n of said enhancement frame is 8.
Said wireless transmission refers to through 3G network to be transmitted.
Behind the primitive frame of the free label of transport tape; Calculate delay time by decoding end, if delay time less than official hour, then transmits primitive frame and enhancement frame 1; And recomputate delay time; If delay time, then transmits primitive frame, enhancement frame 1 to enhancement frame n successively less than official hour, be not less than official hour up to time-delay.
A kind of decoding method that is suitable for high-definition image video wireless transmission that the present invention proposes is encoded brightness and colourity respectively in the image/video cataloged procedure, and colourity adopts the mode of hierarchical coding.And for guaranteeing decoding end feedback network situation in real time, joining day label in the video primitive frame.Be the real-time of assurance transmission and the definition of image in the process of video transmission; At first transmitting brightness is main primitive frame; Transmit corresponding colourity enhancement layer as required according to network condition and the user's request of feedback on this basis, show the score from the transmission policy of, colourity layering, on the basis of the resolution of the video image that guarantees to transmit through this look; For the user provides very big flexibility, the user can be according to the quality of the network bandwidth and the transmission of actual needs adjustment image.
Decoding method of the present invention is applicable to that mainly the 3G site inspection adopts card, emergency command etc.; General resolution and real-time requirement to some extent in this environment to the image transmitted video; Network delay is factors of two mutual restriction with the definition of transmission data, affects the quality of transmission.
The invention has the beneficial effects as follows; At primitive frame head joining day label; Through time tag reaction network time-delay situation; And through look being showed the score from the transmission of, colour grading, human eye and insensitive chromatic component have effectively solved the bigger problem of the transmission delay of high-definition image in wireless network in the suitable reduction picture signal.
Description of drawings
Fig. 1 is that frame of video of the present invention is formed;
Fig. 2 is a frame of video sample mode of the present invention;
Fig. 3 is an embodiment of the invention network condition feedback method.
Embodiment
Through instantiation the present invention is further set forth below, should be noted that following explanation only is in order to explain the present invention, its content not to be limited.
As shown in Figure 1, a kind of high-definition on-site that is applicable to is reconnoitred the video coding-decoding method of 3G outdoor scene transmission, comprises Code And Decode two parts, and its characteristic is following:
Described coding method comprises following steps:
(1) image video signal is at first adopted the YCbCr sample format of 4:4:4, Y, Cb, Cr are divided take identical sampling resolution, the Y component is preserved as primitive frame, and Cb, Cr component deal with in addition;
(2) as shown in Figure 2, Cb and Cr are carried out the ZT coding, carrier chrominance signal is decomposed into 8 layers, respectively as enhancement frame (colourity enhancement frame) 1, enhancement frame 2 ... enhancement frame 8 is preserved.Too much enhancement frame will increase the complexity of codec; Refer to that chrominance signal carries out 8 grades of samplings in the picture coding course, every grade color samples signal is as enhancement layer, and coding is preserved respectively, according to the network real-time situation, increases the sophistication of image color through transmitting corresponding enhancement frame
(3) in the video wireless transmission process; For guaranteeing the definition and the real-time of image/video information, guarantee the transmission of primitive frame first, and in primitive frame frame head (head) the joining day label; What primitive frame comprised is the monochrome information of image, has determined the definition of image.The primitive frame of the free label of transport tape at first, the network delay situation that feeds back in real time according to decoding end then, the number of plies of decision transmission enhancement frame strengthens the color information of image with this.Also according to the number of plies of the corresponding enhancement frame of real-time bandwidth and user's request decision transmission.As shown in Figure 3, treat images through this method and encode, the carrier chrominance signal of image or frame of video to be separated with luminance signal, luminance signal is formed primitive frame; Simultaneously carrier chrominance signal is carried out wavelet coding, carrier chrominance signal is divided into 4 enhancement layers, in the video transmission process; The primitive frame of the free label of transport tape at first, decoder segments is calculated delay time then, if delay time is less than 4s; When then transmitting, primitive frame and enhancement frame 1 recomputate delay time; If delay time, then transmits primitive frame, enhancement frame 1 to enhancement frame n successively less than 4s, be not less than 4s up to time-delay.The said network delay situation that feeds back in real time is meant when coding joining day label in the primitive frame head; Decoding end (receiving terminal) is at first obtained video flowing head time tag; Decoding end is through contrasting with local clock, and computing network is delayed time, and feeds back to coding side.
Decoding end is at first obtained video flowing head time tag, and in the local clock contrast, the computing network time-delay; And feed back to user and coding side; The user can be transmitted corresponding enhancement frame respectively according to real-time network feedback and needs, strengthens the color information of image with this.
Described coding/decoding method comprises following steps:
(1) decoding end calculates network delay, and feeds back to the coding transmitting terminal according to the time tag in the frame head of the primitive frame that receives video image, and utilizes primitive frame to restore the luminance component of image, forms the image/video frame that does not have color component;
The enhancement frame of the image that (2) sends according to coding section is differentiated and is restored the respective image enhancement frame;
(3) primitive frame and picture frame are thought stack, and synthetic complete video frame image is reassembled frame one by one.
This method is a kind ofly to be separated based on colourity and brightness; Colourity layering and ability be the coding and decoding video algorithm of feedback network situation in real time; Colourity and brightness are sampled respectively, are encoded, and colourity adopts the hierarchical coding mode, are to guarantee the resolution of image and the real-time of transmission in the transmission course; At first guarantee the transmission of the primitive frame that luminance signal is formed, differentiate the corresponding colourity enhancement layer of transmission according to real-time bandwidth and user's request then.
Claims (7)
1. a decoding method that is suitable for high-definition image video wireless transmission comprises Code And Decode two parts, and its characteristic is following:
Described coding method comprises following steps:
(1) image video signal is at first adopted the YCbCr sample format of 4:4:4, Y, Cb, Cr are divided take identical sampling resolution, the Y component is preserved as primitive frame;
(2) Cb and Cr are carried out the ZT coding, carrier chrominance signal are decomposed into the n layer, respectively as enhancement frame 1, enhancement frame 2 ... enhancement frame n preserves, and wherein n is the natural number more than or equal to 2;
(3) in the video wireless transmission process, joining day label in primitive frame, the primitive frame of the free label of transport tape at first, the network delay situation that feeds back in real time according to decoding end then, the number of plies of decision transmission enhancement frame;
Described coding/decoding method comprises following steps:
(1) decoding end calculates network delay, and feeds back to coding side according to the time tag in the primitive frame that receives video image, and utilizes primitive frame to restore the luminance component of image, forms the image/video frame that does not have color component;
The enhancement frame of the image that (2) sends according to coding side is differentiated and is restored the respective image enhancement frame;
(3) image/video frame and image enhancement frame are superimposed, synthetic complete video image reassembled frame.
2. video coding-decoding method as claimed in claim 1 is characterized in that, in video wireless transmission process, also according to the number of plies of the corresponding enhancement frame of real-time bandwidth and user's request decision transmission.
3. video coding-decoding method as claimed in claim 1; It is characterized in that; The said network delay situation that feeds back in real time is meant when coding joining day label in primitive frame, and decoding end is at first obtained video flowing head time tag, and through contrasting with local clock; The computing network time-delay, and feed back to coding side.
4. video coding-decoding method as claimed in claim 3 is characterized in that, said time tag joins the head or the centre of primitive frame.
5. video coding-decoding method as claimed in claim 1 is characterized in that, the number of plies n of said enhancement frame is 8.
6. video coding-decoding method as claimed in claim 1 is characterized in that, said wireless transmission refers to through 3G network to be transmitted.
7. video coding-decoding method as claimed in claim 1 is characterized in that, behind the primitive frame of the free label of transport tape; Calculate delay time by decoding end, if delay time less than official hour, then transmits primitive frame and enhancement frame 1; And recomputate delay time; If delay time, then transmits primitive frame, enhancement frame 1 to enhancement frame n successively less than official hour, be not less than official hour up to time-delay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210009004.7A CN102523458B (en) | 2012-01-12 | 2012-01-12 | Encoding and decoding method for wireless transmission of high-definition image and video |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210009004.7A CN102523458B (en) | 2012-01-12 | 2012-01-12 | Encoding and decoding method for wireless transmission of high-definition image and video |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102523458A true CN102523458A (en) | 2012-06-27 |
| CN102523458B CN102523458B (en) | 2014-06-04 |
Family
ID=46294235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210009004.7A Expired - Fee Related CN102523458B (en) | 2012-01-12 | 2012-01-12 | Encoding and decoding method for wireless transmission of high-definition image and video |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102523458B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647923A (en) * | 2013-12-06 | 2014-03-19 | 广东欧珀移动通信有限公司 | Image displaying method in video calling |
| GB2525466A (en) * | 2014-03-06 | 2015-10-28 | Live Link Camera Ltd | Imaging system and method |
| CN105681891A (en) * | 2016-01-28 | 2016-06-15 | 杭州秀娱科技有限公司 | Mobile terminal used method for embedding user video in scene |
| CN105791735A (en) * | 2014-12-24 | 2016-07-20 | 中国电信股份有限公司 | Method and system for dynamically adjusting video call code streams |
| CN106162260A (en) * | 2016-07-27 | 2016-11-23 | 王晓光 | The method of adjustment of the video ads transmission of different delay and system |
| CN106162262A (en) * | 2016-07-28 | 2016-11-23 | 王晓光 | Video ads receives method of reseptance and the system of side |
| CN106162261A (en) * | 2016-07-28 | 2016-11-23 | 王晓光 | Different delay is strategy method and system in video ads receives |
| CN106231381A (en) * | 2016-07-26 | 2016-12-14 | 王晓光 | The video ads sending method of different distance and system |
| WO2018018446A1 (en) * | 2016-07-27 | 2018-02-01 | 王晓光 | Adjustment method and system for video advertisement sending with different time delays |
| WO2018018497A1 (en) * | 2016-07-28 | 2018-02-01 | 王晓光 | Strategy method and system for different time delays in video advertisement receiving |
| CN111200693A (en) * | 2018-11-16 | 2020-05-26 | 杭州海康威视***技术有限公司 | Image data transmission method, device and system |
| CN113422961A (en) * | 2021-07-21 | 2021-09-21 | 杭州当虹科技股份有限公司 | Video encoding method, video decoding method, encoder, and decoder |
| CN115150370A (en) * | 2022-07-05 | 2022-10-04 | 广东魅视科技股份有限公司 | Image processing method |
| WO2024093312A1 (en) * | 2022-10-31 | 2024-05-10 | 华为技术有限公司 | Image coding method and apparatus, and image decoding method and apparatus |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1663279A (en) * | 2002-06-18 | 2005-08-31 | 皇家飞利浦电子股份有限公司 | Video encoding method and corresponding encoding and decoding devices |
| CN1771736A (en) * | 2003-04-04 | 2006-05-10 | 皇家飞利浦电子股份有限公司 | Video encoding and decoding methods and corresponding devices |
| US20070009039A1 (en) * | 2005-07-07 | 2007-01-11 | Samsung Electronics Co., Ltd. | Video encoding and decoding methods and apparatuses |
| CN101015214A (en) * | 2004-09-07 | 2007-08-08 | 三星电子株式会社 | Multi-layer video coding and decoding methods and multi-layer video encoder and decoder |
| US20080232475A1 (en) * | 2002-07-14 | 2008-09-25 | Maynard Handley | Video encoding and decoding |
| JP2008544708A (en) * | 2005-06-24 | 2008-12-04 | 株式会社エヌ・ティ・ティ・ドコモ | Method and apparatus for video encoding and decoding using adaptive interpolation |
| US20090316775A1 (en) * | 2008-06-20 | 2009-12-24 | Chia-Yun Cheng | Video encoding and decoding method and system thereof |
| CN101690194A (en) * | 2007-06-27 | 2010-03-31 | 三星电子株式会社 | Method, medium, and apparatus for encoding and/or decoding video data |
-
2012
- 2012-01-12 CN CN201210009004.7A patent/CN102523458B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1663279A (en) * | 2002-06-18 | 2005-08-31 | 皇家飞利浦电子股份有限公司 | Video encoding method and corresponding encoding and decoding devices |
| US20080232475A1 (en) * | 2002-07-14 | 2008-09-25 | Maynard Handley | Video encoding and decoding |
| CN1771736A (en) * | 2003-04-04 | 2006-05-10 | 皇家飞利浦电子股份有限公司 | Video encoding and decoding methods and corresponding devices |
| CN101015214A (en) * | 2004-09-07 | 2007-08-08 | 三星电子株式会社 | Multi-layer video coding and decoding methods and multi-layer video encoder and decoder |
| JP2008544708A (en) * | 2005-06-24 | 2008-12-04 | 株式会社エヌ・ティ・ティ・ドコモ | Method and apparatus for video encoding and decoding using adaptive interpolation |
| US20070009039A1 (en) * | 2005-07-07 | 2007-01-11 | Samsung Electronics Co., Ltd. | Video encoding and decoding methods and apparatuses |
| CN101690194A (en) * | 2007-06-27 | 2010-03-31 | 三星电子株式会社 | Method, medium, and apparatus for encoding and/or decoding video data |
| US20090316775A1 (en) * | 2008-06-20 | 2009-12-24 | Chia-Yun Cheng | Video encoding and decoding method and system thereof |
Non-Patent Citations (2)
| Title |
|---|
| 饶莉: "基于小波零树编码的彩色图像压缩技术研究", 《电子测量技术》, vol. 30, no. 11, 30 November 2007 (2007-11-30) * |
| 黄金凤，等: "结合小波零树的分形彩色图像编码", 《计算机与数字工程》, vol. 35, no. 2, 31 December 2007 (2007-12-31) * |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103647923A (en) * | 2013-12-06 | 2014-03-19 | 广东欧珀移动通信有限公司 | Image displaying method in video calling |
| CN103647923B (en) * | 2013-12-06 | 2016-08-31 | 广东欧珀移动通信有限公司 | A kind of method for displaying image in video calling |
| GB2525466A (en) * | 2014-03-06 | 2015-10-28 | Live Link Camera Ltd | Imaging system and method |
| CN105791735A (en) * | 2014-12-24 | 2016-07-20 | 中国电信股份有限公司 | Method and system for dynamically adjusting video call code streams |
| CN105791735B (en) * | 2014-12-24 | 2018-11-27 | 中国电信股份有限公司 | Method and system for video calling code stream dynamic adjustment |
| CN105681891A (en) * | 2016-01-28 | 2016-06-15 | 杭州秀娱科技有限公司 | Mobile terminal used method for embedding user video in scene |
| CN106231381A (en) * | 2016-07-26 | 2016-12-14 | 王晓光 | The video ads sending method of different distance and system |
| WO2018018446A1 (en) * | 2016-07-27 | 2018-02-01 | 王晓光 | Adjustment method and system for video advertisement sending with different time delays |
| CN106162260A (en) * | 2016-07-27 | 2016-11-23 | 王晓光 | The method of adjustment of the video ads transmission of different delay and system |
| CN106162261A (en) * | 2016-07-28 | 2016-11-23 | 王晓光 | Different delay is strategy method and system in video ads receives |
| CN106162262A (en) * | 2016-07-28 | 2016-11-23 | 王晓光 | Video ads receives method of reseptance and the system of side |
| WO2018018497A1 (en) * | 2016-07-28 | 2018-02-01 | 王晓光 | Strategy method and system for different time delays in video advertisement receiving |
| CN111200693A (en) * | 2018-11-16 | 2020-05-26 | 杭州海康威视***技术有限公司 | Image data transmission method, device and system |
| CN113422961A (en) * | 2021-07-21 | 2021-09-21 | 杭州当虹科技股份有限公司 | Video encoding method, video decoding method, encoder, and decoder |
| CN115150370A (en) * | 2022-07-05 | 2022-10-04 | 广东魅视科技股份有限公司 | Image processing method |
| WO2024093312A1 (en) * | 2022-10-31 | 2024-05-10 | 华为技术有限公司 | Image coding method and apparatus, and image decoding method and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102523458B (en) | 2014-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102523458B (en) | Encoding and decoding method for wireless transmission of high-definition image and video | |
| RU2321967C2 (en) | Method for masking errors in video sequences | |
| US11627367B2 (en) | Transmitting device, transmitting method, receiving device, and receiving method | |
| US20210377542A1 (en) | Video encoding and decoding method, device, and system, and storage medium | |
| CN106169998B (en) | The treating method and apparatus of media file | |
| WO2009108345A3 (en) | System and method for low bandwidth display information transport | |
| WO2005086981A3 (en) | Methods and apparatuses for compressing digital image data with motion prediction | |
| CN107172433A (en) | A kind of video encryption method | |
| CN106162257B (en) | A kind of adaptive network transmission optimization method of real-time video | |
| CN101106722A (en) | A multi-description video encoding and decoding method based on self-adapted time domain sub-sampling | |
| CN101707701A (en) | Multi-stream information transmission system and transmission method thereof | |
| CN106385585B (en) | The method, apparatus of frame encoding and decoding, system, storage medium | |
| CN108337516A (en) | A kind of HDR video dynamic range scalable encodings of facing multiple users | |
| CN113038127A (en) | ROI-based real-time video multi-path parallel transmission code rate control method | |
| JP2022171957A (en) | Transmission method, transmission device, reception device and reception method | |
| CN112235606A (en) | Multi-layer video processing method, system and readable storage medium | |
| WO2019087789A1 (en) | Transmission device, transmission method, reception device, and reception method | |
| CN104010166B (en) | A kind of method of mobile unit wireless remote video monitoring Adaptive Transmission | |
| CN102438134B (en) | Video transmission apparatus based on visual center principle and transmission method thereof | |
| US11057312B2 (en) | Apparatus and method for configuring MMT payload header | |
| CN101822053A (en) | Encoding method and device for cartoonizing natural video, corresponding video signal comprising cartoonized natural video and decoding method and device therefore | |
| RU2630388C1 (en) | Transmission device, reception device, transmission method and the method of reception | |
| CN114827617B (en) | Video coding and decoding method and system based on perception model | |
| CN106713924B (en) | For text layered compression method and device | |
| CN113727073A (en) | Method and system for realizing vehicle-mounted video monitoring based on cloud computing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20150112 |
|
| EXPY | Termination of patent right or utility model |