CN106954057B - A kind of 3D-HEVC inter-prediction fast schema selection methods based on correlation between viewpoint - Google Patents
A kind of 3D-HEVC inter-prediction fast schema selection methods based on correlation between viewpoint Download PDFInfo
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- CN106954057B CN106954057B CN201710109136.XA CN201710109136A CN106954057B CN 106954057 B CN106954057 B CN 106954057B CN 201710109136 A CN201710109136 A CN 201710109136A CN 106954057 B CN106954057 B CN 106954057B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/103—Selection of coding mode or of prediction mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/103—Selection of coding mode or of prediction mode
- H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/172—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/20—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video object coding
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- Compression Or Coding Systems Of Tv Signals (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
The present invention relates to a kind of 3D HEVC inter-prediction fast schema selection methods based on correlation between viewpoint, belong to field of video encoding, and method includes record input video independence viewpoint SKIP mode flags；Inquire corresponding position of the dependent viewpoint coding unit in independent viewpoint；The optimal mode of coding unit in dependent viewpoint is determined by corresponding position and adjacent position SKIP mode flags.A kind of 3D HEVC inter-predictions fast schema selection methods based on correlation between viewpoint of the present invention can reduce the computing cost of encoder, in the case where keeping coding efficiency constant, reduce the scramble time.
Description
Technical field
The present invention relates to coding and decoding video field more particularly to it is a kind of suitable for stereo scopic video coding based on phase between viewpoint
The 3D-HEVC inter-prediction fast schema selection methods of closing property.
Background technology
In recent years, three-dimensional video-frequency is increasingly becoming hot spot of people's attention, the application such as 3D TVs, free view-point TV also by
Gradually it is familiar with by people.For more efficient code stereoscopic video, it is based on HEVC (High Efficiency Video
Coding stereo scopic video coding standard 3D-HEVC) was suggested and developed in 2012.3D-HEVC video encoding standards utilize
The correlation of time, space and inter-module greatly reduce the redundancy of three-dimensional video-frequency.With previous generation stereo scopic video coding standards MVC
(Multiview Video Coding) is compared, and 3D-HEVC increases many new technologies, for example, increasing group in 3D-HEVC
Predicting Technique between part increases new prediction mode, increases new partitioning scheme etc..Although 3D-HEVC uses a series of
New technology, and the also reductions more all than prior-generation on code check, but what is brought while coding efficiency improves is to calculate
The increase of complexity.This has seriously affected the real-time application of stereo scopic video coding technology, therefore is directed to 3D-HEVC computation complexities
High problem, study fast encoding method, reduce its computing cost while keeping encoding efficiency, have great importance with
Value.
Invention content
It is an object of the invention to overcome the deficiencies in the prior art, propose it is a kind of suitable for stereo scopic video coding based on regarding
The 3D-HEVC inter-prediction fast schema selection methods of correlation between point, the method are directed to 3D-HEVC criterion calculation complexities
High problem effectively reduces the computing cost of encoder under the premise of keeping coding efficiency constant.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of 3D-HEVC inter-prediction fast schema selection methods based on correlation between viewpoint, including：
Independent viewpoint in input video is encoded using the 3D-HEVC encoders of standard；
After being encoded to independent viewpoint, record whether each CTU (Coding Tree Unit) is carried out using SKIP patterns
Coding, and be recorded in preset matrix M；It is 1 that corresponding position is set if being encoded using SKIP patterns, is otherwise set to 0；
When being encoded to dependent viewpoint, to finding corresponding position and adjacent position in matrix M, and extract pair
The value for answering position and adjacent position, is denoted as m1 and m2 respectively；
If m1 and m2 are 1, current coded unit directly selects SKIP patterns as optimal mode, skips to other
The inspection of pattern；Otherwise the normative forecast mode for using 3D-HEVC, continues to traverse other patterns.
The present invention has the advantages that：
1, the method for the present invention simple possible, it is only necessary to establish a matrix before encoding, be filled when encoding independent viewpoint
The matrix searches the matrix when encoding dependent viewpoint；
2, the method for the present invention takes full advantage of the exclusive characteristic of three-dimensional video-frequency；Since three-dimensional video-frequency is adopted by multiple cameras
Collection Same Scene obtains, therefore the content between each viewpoint has the correlation of height.
Invention is further described in detail with reference to the accompanying drawings and embodiments, but one kind of the present invention is based between viewpoint
The 3D-HEVC inter-prediction fast schema selection methods of correlation are not limited to embodiment.
Description of the drawings
Fig. 1 is the flow diagram of the method for the present invention.
Specific implementation mode
Shown in Figure 1, the present invention is high in order to solve the problems, such as the 3D-HEVC criterion calculation complexities of the prior art, carries
For a kind of 3D-HEVC inter-prediction fast schema selection methods based on correlation between viewpoint, it is as follows：
Step 1, the independent viewpoint in input video is encoded using the 3D-HEVC encoders of standard；
Step 2, after being encoded to independent viewpoint, record whether each CTU (Coding Tree Unit) uses SKIP moulds
Formula is encoded, and is recorded in preset matrix M；It is 1 that corresponding position is set if being encoded using SKIP patterns, is otherwise set
It is 0；
Step 3, it when being encoded to dependent viewpoint, to finding corresponding position and adjacent position in matrix M, and carries
The value for taking out corresponding position and adjacent position, is denoted as m1 and m2 respectively；
Step 4, if m1 and m2 are 1, current coded unit directly selects SKIP patterns as optimal mode, skips
Inspection to other patterns；Otherwise the normative forecast mode for using 3D-HEVC, continues to traverse other patterns.
Above-described embodiment is intended merely to illustrate the present invention, and is not used as limitation of the invention, as long as according to this hair
Bright technical spirit is changed above-described embodiment, modification etc. will all be fallen in the scope of the claims of the present invention.
Claims (1)
1. a kind of 3D-HEVC inter-prediction fast schema selection methods based on correlation between viewpoint, which is characterized in that including：
Independent viewpoint in input video is encoded using the 3D-HEVC encoders of standard；
After being encoded to independent viewpoint, record whether each CTU is encoded using SKIP patterns, and preset matrix M is recorded
In；It is 1 that corresponding position is set if being encoded using SKIP patterns, is otherwise set to 0；
When being encoded to dependent viewpoint, to finding corresponding position and adjacent position in matrix M, and corresponding position is extracted
The value with adjacent position is set, is denoted as m1 and m2 respectively；
If m1 and m2 are 1, current coded unit directly selects SKIP patterns as optimal mode, skips to other patterns
Inspection；Otherwise the normative forecast mode for using 3D-HEVC, continues to traverse other patterns.
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| CN108737840A (en) * | 2018-05-28 | 2018-11-02 | 华侨大学 | Fast encoding method in a kind of 3D-HEVC frames based on depth map texture features |
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| CN103428499A (en) * | 2013-08-23 | 2013-12-04 | 清华大学深圳研究生院 | Coding unit partition method and multi-view video coding method using coding unit partition method |
| CN104202612A (en) * | 2014-04-15 | 2014-12-10 | 清华大学深圳研究生院 | Coding unit dividing method and video coding method based on quad-tree constraint |
| CN104243997A (en) * | 2014-09-05 | 2014-12-24 | 南京邮电大学 | Method for quality scalable HEVC (high efficiency video coding) |
| CN104539970A (en) * | 2014-12-21 | 2015-04-22 | 北京工业大学 | 3D-HEVC interframe coding merge mode fast decision making method |
| CN104754360A (en) * | 2015-03-26 | 2015-07-01 | 清华大学深圳研究生院 | Load predicting method and device used in free viewpoint video coding process |
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| US9106920B2 (en) * | 2009-05-05 | 2015-08-11 | Telefonaktiebolaget L M Ericsson (Publ) | Scalable video coding method, encoder and computer program |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103428499A (en) * | 2013-08-23 | 2013-12-04 | 清华大学深圳研究生院 | Coding unit partition method and multi-view video coding method using coding unit partition method |
| CN104202612A (en) * | 2014-04-15 | 2014-12-10 | 清华大学深圳研究生院 | Coding unit dividing method and video coding method based on quad-tree constraint |
| CN104243997A (en) * | 2014-09-05 | 2014-12-24 | 南京邮电大学 | Method for quality scalable HEVC (high efficiency video coding) |
| CN104539970A (en) * | 2014-12-21 | 2015-04-22 | 北京工业大学 | 3D-HEVC interframe coding merge mode fast decision making method |
| CN104754360A (en) * | 2015-03-26 | 2015-07-01 | 清华大学深圳研究生院 | Load predicting method and device used in free viewpoint video coding process |
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