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Stereoscopic video macroblock loss error concealment method

A technology for stereoscopic video and error concealment, which is applied in stereoscopic systems, digital video signal modification, television and other directions, and can solve problems such as improper recovery strategies and affecting the recovery quality of lost macroblocks.

Active Publication Date: 2013-08-07
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing error concealment methods for partial macroblock loss in stereoscopic video do not take into account the different characteristic information of different lost macroblocks, which leads to improper recovery strategies and ultimately affects the recovery quality of lost macroblocks.

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  • Stereoscopic video macroblock loss error concealment method
  • Stereoscopic video macroblock loss error concealment method
  • Stereoscopic video macroblock loss error concealment method

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Embodiment Construction

[0082] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0083] A method for concealing the loss of stereoscopic video macroblock errors proposed by the present invention considers the coding characteristics of the stereoscopic video sequence and the similarity of video image information area features in the time domain, space domain, and viewpoint of the video sequence, assuming that the frame at a certain moment in the right viewpoint Partial image loss means partial macroblock loss. Firstly, the occlusion characteristics, motion and static characteristics, sensitivity characteristics, texture and smoothness characteristics of the lost macroblocks are analyzed; then according to the different characteristics of the lost macroblocks, temporal motion compensation prediction, The luma information and chrominance information of the lost macroblocks are recovered by means of disparity compensation predi...

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Abstract

The invention discloses a stereoscopic video macroblock loss error concealment method. The stereoscopic video macroblock loss error concealment method includes firstly determining the lost macroblocks belong to a left boundary shielding area, a right boundary shielding area or a non-boundary shielding area; then classifying the lost macroblocks belonging to the non-boundary shielding area as motion macroblocks or static macroblocks according to motion and static features of the macroblocks; utilizing a human sight sensitivity feature of the macroblocks to classify the motion macroblocks as sensitive macroblocks and insensitive macroblocks; then utilizing texture and smooth features of the macroblocks to classify the sensitive macroblocks as texture macroblocks and smooth macroblocks; and utilizing manners of time domain compensation prediction, time domain frame copy, parallax compensation prediction, multi-direction interpolation and linear interpolation to restore the lost macroblocks, the static macroblocks, the insensitive macroblocks, the texture macroblocks and the smooth macroblocks. Since adaptive restoration strategies are adopted according to macroblocks with different features, subjective and objective quality of restored macroblocks are effectively improved.

Description

technical field [0001] The invention relates to a video error concealment method, in particular to a stereoscopic video macro block loss error concealment method. Background technique [0002] With the rapid development of multimedia and network technology, video technology is developing in the direction of three-dimensional, digital, networked and high-definition. Compared with traditional media, the outstanding advantage of stereoscopic video is that it can create a more intuitive and real scene experience for the public, and provide more diversified and comprehensive media interaction functions. Therefore, people's demand for the development and application of stereoscopic video systems is becoming more and more urgent, such as in digital stereoscopic television, distance education, remote industrial control, 3D video conferencing systems, virtual reality systems, telemedicine, remote control robots, automatic navigation, consumer Electronics and many other fields. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/68H04N13/00H04N19/895
Inventor 蒋刚毅孙越陈芬邵枫彭宗举王晓东李福翠
Owner NINGBO UNIV
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