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Method for rapidly selecting multi-view video coding modes based on rate distortion sensitivity

A technology for multi-view video and mode selection, which is applied in the field of digital video coding and can solve the problems of large amount of calculation and reduced coding rate distortion performance.

Active Publication Date: 2014-06-04
ZHEJIANG UNIV OF TECH
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Problems solved by technology

[0004] In order to overcome the disadvantages of the existing multi-viewpoint video coding fast mode selection method that the overall calculation amount is large and the coding rate distortion performance is greatly reduced, the present invention provides a method that can effectively reduce the overall calculation amount of multi-viewpoint video coding and maintain a good performance. Rate-distortion Sensitivity-Based Fast Mode Selection Method for Multi-View Video Coding Based on Rate-Distortion Performance

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  • Method for rapidly selecting multi-view video coding modes based on rate distortion sensitivity
  • Method for rapidly selecting multi-view video coding modes based on rate distortion sensitivity
  • Method for rapidly selecting multi-view video coding modes based on rate distortion sensitivity

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Embodiment Construction

[0035] The present invention will be described in detail below in conjunction with the embodiments and accompanying drawings, but the present invention is not limited thereto.

[0036] Such as figure 1 As shown, a fast mode selection method for multi-view video coding based on rate-distortion sensitivity, comprising the following steps:

[0037] (1) input a frame of multi-viewpoint video data;

[0038] (2) The selection of the rate-distortion cost reference frame and the calculation of the mean value of the rate-distortion cost modified by the quantization step size;

[0039] (3) Estimation of macroblock large-size inter-frame mode;

[0040] (4) Calculation of macroblock rate-distortion sensitivity;

[0041] (5) Selection of small-size inter-frame mode estimation for macroblocks;

[0042] (6) Selection of macroblock intra-frame mode estimation;

[0043] (7) Selection of the final encoding mode of the macroblock.

[0044] In this embodiment, the macroblock large-size inte...

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Abstract

The invention discloses a method for rapidly selecting multi-view video coding modes based on rate distortion sensitivity, which comprises the following steps of: (1) inputting one frame of multi-view video data; (2) selecting a reference frame of the rate distortion cost and calculating an average value of the rate distortion cost with modified quantification steps; (3) estimating the large-size inter-frame modes of a macroblock; (4) calculating the rate distortion sensitivity of the macroblock; (5) selecting the small-size inter-frame modes estimation of the macroblock; (6) selecting the intra-frame mode estimation of the macroblock; and (7) selecting the final coding mode of the macroblock. The method disclosed by the invention is applicable for selection of the multi-view video coding macroblock coding modes, and capable of reducing the whole calculating amount of the multi-view video coding and maintaining the coding rate distortion property at the same time.

Description

technical field [0001] The invention relates to the field of digital video coding, in particular to a fast mode selection method for multi-viewpoint video coding based on rate-distortion sensitivity. Background technique [0002] Multiview Video (Multiview Video, MV) is the video data obtained by multiple cameras shooting the same scene from different angles of view. It can provide users with a visual experience that cannot be compared with traditional single-view video. It is an important input data for 3D TV (see A .Kubota, A.Smolic, M.Magnor, M.Tanimoto, T.Chen and C.Zhang, Multiview imaging and 3DTV, namely "Multiview image and 3D TV", IEEE Signal Processing Magazine, vol.24, no.6 , pp.10-21, Nov.2007). Since multi-viewpoint video contains video data from multiple perspectives, its data volume increases with the increase of the number of viewpoints. In order to meet the requirements for multi-view video storage and transmission, multi-view video coding (Multiview Video...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N19/567H04N19/597H04N19/109H04N19/147
Inventor 朱威陈朋郑雅羽俞立
Owner ZHEJIANG UNIV OF TECH
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