Coding method of asymmetric stereoscopic video

Abstract

The invention discloses a coding method of asymmetric stereoscopic videos, comprising the following steps of: in the coding process of each half resolution ratio down-sampling image of a right view point video by a video coding method with time domain prediction and view point space prediction, using a decoding reconstructed frame of the coded half resolution ratio down-sampling image of the right view point video as a time domain prediction reference frame, and using a half resolution ratio down-sampling image of a synchronous decoding reconstructed frame of a left view point video as a view point space prediction reference frame; and selecting a sampling direction according to the sizes of residual errors of macro blocks which can not only be horizontally predicted, but also be vertically predicted in an I frame image of the left view point video in the half resolution ratio down-sampling process, wherein the residual errors of the macro blocks are predicted by adopting a horizontal prediction mode and a vertical prediction mode, thus better rate-distortion performance can be obtained. Besides, because residual error information can be conveniently obtained during coding without additional calculation, the complexity of the coding can not be enhanced.

Description

technical field [0001] The present invention relates to a video encoding method, in particular to an asymmetric stereoscopic video encoding method. Background technique [0002] With the continuous improvement of stereoscopic display technology, 3DTV (Three Dimensional Television, stereoscopic television / three-dimensional television) is more and more popular, its products are also increasingly abundant, and its application fields are also constantly expanding. Mobile terminals such as mobile phones are indispensable communication tools for people at present, and are also one of the important carriers of multimedia technology. The market prospect of transplanting 3DTV technology to the field of mobile terminals is broad. In Europe, the mobile-3DTV project has been implemented. Its purpose is to establish a complete stereoscopic video system based on mobile terminals, including stereoscopic video acquisition, effective encoding, and DVB-H (Digital Video Broadcasting-Handheld, ...

AI Technical Summary

Problems solved by technology

However, since the horizontal signal correlation and vertical signal correlation strength of stereo video images may be different, and the correlation strength is related to the image content, resulting in asymmetric stereo video coding using 1 / 2 resolution downsampling , using horizontal and vertical downsampling produces different rate-distortion performance

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