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CN106303450A - A kind of method of video image processing - Google Patents

A kind of method of video image processing Download PDF

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Publication number
CN106303450A
CN106303450A CN201610763768.3A CN201610763768A CN106303450A CN 106303450 A CN106303450 A CN 106303450A CN 201610763768 A CN201610763768 A CN 201610763768A CN 106303450 A CN106303450 A CN 106303450A
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CN
China
Prior art keywords
prediction
image processing
motion
video image
quantization
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.)
Pending
Application number
CN201610763768.3A
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Chinese (zh)
Inventor
刘旭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Kang Sheng Reaches Intelligent Science And Technology Ltd
Original Assignee
Hefei Kang Sheng Reaches Intelligent Science And Technology Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Hefei Kang Sheng Reaches Intelligent Science And Technology Ltd filed Critical Hefei Kang Sheng Reaches Intelligent Science And Technology Ltd
Priority to CN201610763768.3A priority Critical patent/CN106303450A/en
Publication of CN106303450A publication Critical patent/CN106303450A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/18Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/46Embedding additional information in the video signal during the compression process
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

The present invention proposes a kind of method of video image processing, comprises the steps: S1: gather vedio data;S2: the vedio data gathered is carried out infra-frame prediction and inter prediction, the incidental information of infra-frame prediction and inter prediction is encoded to vedio data;S3: the vedio data gathered is carried out motion prediction and motion compensation, the incidental information of motion prediction and motion compensation is added in the encoded video view data in step S2;S4: step S3 completing the vedio data after incidental information adds and uses bit stream output, the present invention while ensureing image quality, can improve the speed of image transmitting.

Description

A kind of method of video image processing
Technical field
The invention belongs to technical field of image processing, particularly to a kind of method of video image processing.
Background technology
At present, video security monitoring system is the ingredient of safety and protection system, and it is that a kind of prevention ability is stronger Integrated system.Video monitoring is directly perceived with it, convenient, information content is abundant and is widely used in many occasions.In recent years, along with meter Calculation machine, network and image procossing, the developing rapidly of transmission technology, video monitoring technology also has significant progress.
At home and abroad on market, main release is the monitoring of numerically controlled analog video and digital video monitoring two class product Product.The former technology develops the most highly developed, stable performance, and is used widely in practical engineering application, particularly exists Application in large and medium-sized video monitoring engineering is the most extensive;The latter be recently emerge with computer technology and image/video pressure It is condensed to the novel video monitoring system of core, system solves the problem analog systems part drawback and emerge rapidly, but still need to into one Step is improved and development.At present, video monitoring system be in numerical control analog systems mix with digital display circuit application and will gradually to The stage of digital display circuit transition.
But, current video monitoring system, however it remains certain problem, as during transmission, in order to suitable Answer the excessive demand of network, and the video gathered is carried out certain compression and processes, after compression processes, can cause to a certain extent regarding The distortion of frequency.
Therefore, a kind of method of video image processing is needed now badly, it is possible to avoid the image fault caused in compression process, Ensure speed and the effect of image transmitting.
Summary of the invention
The present invention proposes a kind of method of video image processing, solves in prior art during picture transmission, because pressure Contracting processes, the problem causing video image distortion.
The technical scheme is that and be achieved in that: method of video image processing, comprise the steps:
S1: gather vedio data;
S2: the vedio data gathered is carried out infra-frame prediction and inter prediction, by infra-frame prediction and inter prediction Incidental information is encoded to vedio data;
S3: the vedio data gathered is carried out motion prediction and motion compensation, by motion prediction and motion compensation Incidental information adds in the encoded video view data in step S2;
S4: step S3 is completed the vedio data after incidental information adds and uses bit stream output.
As one preferred embodiment, it is encoded in vedio data be included in by the incidental information of infra-frame prediction Intra picture carries out intraframe predictive coding, utilizes intraframe predictive coding to add incidental information, meanwhile, to intra-prediction image Carry out transform and quantization.
As one preferred embodiment, intra-prediction image is converted the encoding amount including reducing picture.
As one preferred embodiment, the coding after transform and quantization is carried out error correction conversion according to conversion coefficient, Then the data acquisition bit stream after being converted with error correction by incidental information exports
As one preferred embodiment, carry out motion prediction and motion compensation, by being coded into after transform and quantization Row de-quantization and inverse transformation, utilize inter prediction that the data after inverse transformation carry out picture reconstruct, carry out noise reduction process the most again, After noise reduction process, add motion compensation and the subsidiary motion vector of motion prediction.
As one preferred embodiment, infra-frame prediction uses the cosine transform that integer transform agency is discrete.
As one preferred embodiment, utilize inter prediction that the data after inverse transformation are carried out picture reconstruct, including Prediction frame is used to carry out P/B picture reconstruct.
As one preferred embodiment, the coding after transform and quantization is carried out de-quantization and inverse transformation, is included in Infra-frame prediction using the block of particular size as reference cell, the template of predictive coding from pixel, according to about original image, on Dependency between Xia, when at de-quantization, uses the difference value of ambient data to carry out reconstruction picture.
As one preferred embodiment, motion prediction uses full forecast technology, utilizes multiple motion vector to explore After unit subdivision, individually obtain real motion vector, the encoding amount of suppression motion details.
As one preferred embodiment, motion prediction uses the prediction of variable-block size, reference frame number maximum 4-6.
After have employed technique scheme, the invention has the beneficial effects as follows: this method of video image processing is taken the photograph by utilization As head gathers image, and after gathering image, image is compressed coded treatment, carries out in frame during compression processes Prediction and inter prediction, and it is added with the additional information of the motion prediction of motion compensation, and coordinate P/B picture to reconstruct, it is possible to While ensureing image quality, improve the speed of image transmitting.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used To obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.Based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise Embodiment, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, this method of video image processing, comprise the steps:
S1: gather vedio data;
S2: the vedio data gathered is carried out infra-frame prediction and inter prediction, by infra-frame prediction and inter prediction Incidental information is encoded to vedio data;
S3: the vedio data gathered is carried out motion prediction and motion compensation, by motion prediction and motion compensation Incidental information adds in the encoded video view data in step S2;
S4: step S3 is completed the vedio data after incidental information adds and uses bit stream output.
It is encoded in vedio data to be included in intra picture carries out frame pre-by the incidental information of infra-frame prediction Survey coding, utilize intraframe predictive coding to add incidental information, meanwhile, intra-prediction image is carried out transform and quantization.
Intra-prediction image is converted the encoding amount including reducing picture.
Coding after transform and quantization is carried out error correction conversion according to conversion coefficient, then incidental information is converted with error correction After data acquisition bit stream export.
Carry out motion prediction and motion compensation, the coding after transform and quantization is carried out de-quantization and inverse transformation, utilizes frame Between predict the data after inverse transformation carried out picture reconstruct, carry out noise reduction process the most again, after noise reduction process, add motion compensation Subsidiary motion vector with motion prediction.
Infra-frame prediction uses the cosine transform that integer transform agency is discrete.
Utilize inter prediction that the data after inverse transformation are carried out picture reconstruct, carry out P/B picture weight including using prediction frame Structure.
Coding after transform and quantization is carried out de-quantization and inverse transformation, is included in infra-frame prediction and makees with the block of particular size On the basis of unit, the template of predictive coding from pixel, according to dependency about original image, in-between, in solution amount During change, the difference value of ambient data is used to carry out reconstruction picture.
Motion prediction uses full forecast technology, after utilizing multiple motion vector to explore unit subdivision, individually obtains real Motion vector, suppression motion details encoding amount.
Motion prediction uses the prediction of variable-block size, reference frame number maximum 4-6.
The operation principle of this method of video image processing is: this method of video image processing is by utilizing camera collection figure Picture, and after gathering image, image is compressed coded treatment, during compression processes, carry out infra-frame prediction and interframe Prediction, and it is added with the additional information of the motion prediction of motion compensation, and coordinate P/B picture to reconstruct, it is possible to ensureing picture While quality, improve the speed of image transmitting.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.

Claims (10)

1. a method of video image processing, it is characterised in that comprise the steps:
S1: gather vedio data;
S2: the vedio data gathered is carried out infra-frame prediction and inter prediction, by attaching of infra-frame prediction and inter prediction Information is encoded to vedio data;
S3: the vedio data gathered is carried out motion prediction and motion compensation, by attaching of motion prediction and motion compensation Information is added in the encoded video view data in step S2;
S4: step S3 is completed the vedio data after incidental information adds and uses bit stream output.
Method of video image processing the most according to claim 1, it is characterised in that the incidental information of infra-frame prediction is encoded In vedio data, it is included in intra picture carries out intraframe predictive coding, utilize intraframe predictive coding to add subsidiary letter Breath, meanwhile, carries out transform and quantization to intra-prediction image.
Method of video image processing the most according to claim 2, it is characterised in that intra-prediction image is carried out conversion bag Include the encoding amount reducing picture.
Method of video image processing the most according to claim 3, it is characterised in that by the coding after transform and quantization according to Conversion coefficient carries out error correction conversion, and the data acquisition bit stream after then being converted with error correction by incidental information exports.
Method of video image processing the most according to claim 4, it is characterised in that carry out motion prediction and motion compensation, Coding after transform and quantization is carried out de-quantization and inverse transformation, utilizes inter prediction that the data after inverse transformation are carried out picture weight Structure, carries out noise reduction process the most again, after noise reduction process, adds motion compensation and the subsidiary motion vector of motion prediction.
Method of video image processing the most according to claim 5, it is characterised in that infra-frame prediction uses integer transform agency Discrete cosine transform.
Method of video image processing the most according to claim 6, it is characterised in that after utilizing inter prediction to inverse transformation Data carry out picture reconstruct, carry out P/B picture reconstruct including using prediction frame.
Method of video image processing the most according to claim 7, it is characterised in that the coding after transform and quantization is carried out De-quantization and inverse transformation, be included in infra-frame prediction using the block of particular size as reference cell, predictive coding from pixel Template, according to dependency about original image, in-between, when at de-quantization, uses the difference value of ambient data to reconstruct Picture.
Method of video image processing the most according to claim 8, it is characterised in that motion prediction uses full forecast skill Art, after utilizing multiple motion vector to explore unit subdivision, individually obtains real motion vector, the coding of suppression motion details Amount.
Method of video image processing the most according to claim 9, it is characterised in that motion prediction uses variable-block size Prediction, reference frame number maximum 4-6.
CN201610763768.3A 2016-08-29 2016-08-29 A kind of method of video image processing Pending CN106303450A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023284695A1 (en) * 2021-07-14 2023-01-19 Beijing Bytedance Network Technology Co., Ltd. Method, apparatus, and medium for video processing

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CN1487738A (en) * 1994-09-26 2004-04-07 ������������ʽ���� Recording and reproducing equipment for digital video-frequency signal, and recording and reproducing method thereof
CN1585490A (en) * 2003-08-21 2005-02-23 松下电器产业株式会社 Digital video signal processing apparatus and electronic device therewith
JP2008104072A (en) * 2006-10-20 2008-05-01 Canon Inc Method and apparatus for encoding image data
CN103026710A (en) * 2010-08-03 2013-04-03 索尼公司 Image processing device and image processing method
CN103248887A (en) * 2012-02-10 2013-08-14 美国博通公司 Frequency domain sample adaptive offset (SAO)

Patent Citations (6)

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Publication number Priority date Publication date Assignee Title
CN1487738A (en) * 1994-09-26 2004-04-07 ������������ʽ���� Recording and reproducing equipment for digital video-frequency signal, and recording and reproducing method thereof
CN1221284A (en) * 1997-12-20 1999-06-30 三星电子株式会社 Digital recording and playback apparatus having MPEG code decoder and method therefor
CN1585490A (en) * 2003-08-21 2005-02-23 松下电器产业株式会社 Digital video signal processing apparatus and electronic device therewith
JP2008104072A (en) * 2006-10-20 2008-05-01 Canon Inc Method and apparatus for encoding image data
CN103026710A (en) * 2010-08-03 2013-04-03 索尼公司 Image processing device and image processing method
CN103248887A (en) * 2012-02-10 2013-08-14 美国博通公司 Frequency domain sample adaptive offset (SAO)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023284695A1 (en) * 2021-07-14 2023-01-19 Beijing Bytedance Network Technology Co., Ltd. Method, apparatus, and medium for video processing

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