Adaptive 3D Video Compression Codec Method Based on Compressed Sensing

Abstract

The invention discloses an adaptive 3D video encoding and decoding method based on compressed sensing. First, the multi-viewpoint video is divided into key viewpoints and non-key viewpoints, and key viewpoints are divided into key frames and non-key frames; for key frames, a higher sampling rate is used; for non-key frames, according to the residual of the current frame and the key frame Classify image blocks (SKIP, INTER and COMBINED modes), different modes use different sampling rates; similar methods are used for non-key viewpoints. For the decoding end, the key frame of the key view is restored first; then the non-key frame information is used to restore the non-key frame; the non-key view is restored by using the information of the key view. The method of the invention can effectively reduce the computational complexity of the encoding end, can be applied to the scene where the encoding end has weak computing ability but the decoding end has strong computing ability, and can significantly improve the 3D video compression efficiency.

Description

technical field [0001] The invention relates to a video codec method, in particular to an adaptive 3D video compression method based on compressed sensing. Background technique [0002] 3D video refers to a video sequence obtained by capturing the same scene from different angles through multiple cameras. Because it can provide a more real and natural visual experience, it is getting more and more attention. It uses multiple videos with a certain parallax to make people feel three-dimensional. This form of video can better present the real scene in front of people's eyes, so that people can feel immersive. On the one hand, 3D video improves people's viewing experience, but on the other hand, it also puts forward higher requirements on bandwidth and compression algorithms. [0003] At present, with the continuous development of display technology and communication technology, the application of 3D video is widely emerging, especially for the real-time application of high-de...

Images