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Self-adapting down-sampling stereo video compressed coding method based on residual error macro block

A technology of stereoscopic video and compression coding, which is used in stereoscopic systems, digital video signal modification, television and other directions to achieve the effect of reducing image data and reducing distortion

Active Publication Date: 2010-03-10
GUANGDONG XUNTONG TECH
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Problems solved by technology

In addition to the temporal correlation, spatial correlation and other correlations of monocular video information, what is more important is the existence of binocular parallax

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  • Self-adapting down-sampling stereo video compressed coding method based on residual error macro block
  • Self-adapting down-sampling stereo video compressed coding method based on residual error macro block
  • Self-adapting down-sampling stereo video compressed coding method based on residual error macro block

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Embodiment Construction

[0030] The encoder is set as a video predictive encoding module, a global disparity calculation module, a sampling mode decision module, a residual image down-sampling encoding module and a decoded image up-sampling reconstruction module, totally four functional modules. ① At the beginning of encoding, the left-view video signal is first encoded using the traditional H.264 multi-mode multi-reference frame coding scheme, and reconstructed to be used as the reference frame of the right-view signal. ②For the right view video signal, first determine the IDR frame in each GOP group, and use the original encoding method for the IDR frame image, that is, it is not necessary to down-sample the residual macroblock, and calculate the global disparity of the IDR frame at the same time—— The overall motion of the image at the same moment relative to the left view, and used as the global disparity of other frames in the GOP group. For the images in each GOP except the IDR frame, the joint ...

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Abstract

The invention relates to a self-adapting down-sampling stereo video compressed coding method based on a residual error macro block, adopting a stereo video coding scheme based on united compensated prediction by time and spatial correlation analysis of the video information of the left viewpoint and the right viewpoint of a stereo video and correlation analysis between the left viewpoint and the right viewpoint, wherein two images of stereo video of a stereo video image pair are formed according to the human eye vision inhibition theory; a high-resolution image can inhibit fuzzy parts in a low-resolution image, and the finally obtained stereo perception mainly depends on the high-resolution image. Based on the theory, the invention provides a down-sampling method based on a residual errormacro block, comprising the following steps: respectively adopting three down-sampling modes according to movement conditions of the image in different directions to reduce the sampling distortion factor; then according to a motion compensated prediction mode, a parallax compensated prediction mode and a united compensated prediction mode in stereo video coding, judging the severity rate of the movement of the current coding block, thereby realizing the self-adapting down-sampling method based on the residual error macro block and improving the coding efficiency.

Description

technical field [0001] The invention relates to a method for encoding and compressing stereoscopic video signals, in particular to a method for compressing video signals based on residual macroblock down-sampling and analyzing the time correlation of video signals and the correlation between left and right viewpoints of stereoscopic video signals. Background technique [0002] In the next-generation video technology, stereoscopic video, as a digital medium that provides more information and data than ordinary video, has attracted more and more attention because of its strong stereoscopic and depth-feeling characteristics. Especially in the 21st century, people's perception of video information has gradually changed from analog and flat video to digital and stereoscopic video. Digitized stereoscopic video will have broad application prospects in fields such as digital film, digital television, automatic navigation, and virtual reality. The research on the theory and technolo...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/26H04N7/50H04N13/00H04N19/597
Inventor 刘峰何文革胡栋张艳彬朱秀昌
Owner GUANGDONG XUNTONG TECH
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