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Stereoscopic video B frame error concealment method based on eye perception

A technology of stereoscopic video and error concealment, applied in the field of video coding and decoding, which can solve the problem that MV-HEVC cannot adapt well

Active Publication Date: 2018-10-16
HANGZHOU DIANZI UNIV
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AI Technical Summary

Problems solved by technology

[0004] The traditional error concealment technology is mainly oriented to the planar video error concealment based on the H.264 standard. However, it cannot adapt well to the new standard HEVC and the extended multi-view standard MV-HEVC.

Method used

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  • Stereoscopic video B frame error concealment method based on eye perception
  • Stereoscopic video B frame error concealment method based on eye perception
  • Stereoscopic video B frame error concealment method based on eye perception

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Embodiment Construction

[0063] The present invention will be further described in detail in conjunction with the following specific embodiments and accompanying drawings.

[0064] Such as figure 1 with 2 , a stereoscopic video B-frame error concealment method based on human eye perception, first divides the missing block types in the stereoscopic video, divides the missing blocks into static blocks and moving blocks, and then adopts different recovery methods for different types of missing blocks In this method, the static block chooses the direct copy method, and the motion block is restored using the stereoscopic video error concealment algorithm based on the BJND model.

[0065] 1. To divide the lost block types in the stereoscopic video is to divide the lost blocks in the video frame into static blocks and motion blocks; the specific steps are:

[0066] (1) First obtain the co-located block B in the forward reference frame 1 ;

[0067] (2) Then obtain the co-located block B in the backward re...

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Abstract

The invention provides a stereoscopic video B frame error concealment method based on eye perception. A traditional error concealment technology cannot well adapt to the new standard HEVC and the extended new multi-view standard MV-HEVC. The method comprises the steps that lost blocks in a stereoscopic video are partitioned into static blocks and motion blocks; and then different restoration modesare adopted for the different lost block types, a direct copy mode is selected for the static blocks, and the motion blocks are restored by using a stereoscopic video error concealment algorithm based on a binocular just noticeable distortion model, wherein the motion blocks are restored through the specific steps that adaptive size partitioning is conducted, a candidate motion-disparity vector set is built, BJND model-based matching criterion values are calculated, and finally an optimal motion vector is selected for restoration. According to the method, the characteristics of the new standard are combined, the existing error concealment method is improved, the distortion characteristic of eyes for video pictures is considered, and a very good restoration effect is achieved on the network packet loss phenomenon of the stereoscopic video in network transmission.

Description

technical field [0001] The invention belongs to the technical field of video encoding and decoding, and in particular relates to a stereoscopic video B-frame error concealment method based on human eye perception. Background technique [0002] Error concealment is aimed at the loss of video stream data packets due to poor network environment or network interruption during video transmission on the network. It does not need to go through the network retransmission mechanism. At the video stream decoding end, the video screen is transmitted between the time domain and the air domain. The correlation between them directly recovers the lost block information. [0003] The current research on error concealment mainly includes: 1) According to the temporal correlation, due to the temporal correlation of the video frame, the motion vector is approximate in the adjacent frame, and the lost block is recovered through the motion vector; 2) According to the spatial correlation 3) Acco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N19/65H04N19/895H04N19/513H04N19/176
CPCH04N19/176H04N19/513H04N19/65H04N19/895
Inventor 周洋吴佳忆周辉谢菲
Owner HANGZHOU DIANZI UNIV
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