Multi-view stereoscopic video compression and decompression method based on fractal and H.264

A stereoscopic video and fractal technology, which is used in stereoscopic systems, digital video signal modification, television, etc., can solve the problems of difficult to meet the requirements of compression time and image quality, slow encoding speed, and large amount of calculation.

Active Publication Date: 2013-04-10
海宁经开产业园区开发建设有限公司
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Problems solved by technology

However, in the cyclic predictive coding (CPM) method, in order to ensure that the initial frame can approximately converge to the original image after its own cyclic decoding, the compression process needs to go through complex transformations, searches, and iterations, etc., and the compression time and image qu

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  • Multi-view stereoscopic video compression and decompression method based on fractal and H.264
  • Multi-view stereoscopic video compression and decompression method based on fractal and H.264
  • Multi-view stereoscopic video compression and decompression method based on fractal and H.264

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[0078] The method of the present invention will be further described in detail below in conjunction with the accompanying drawings. Only the brightness component Y is taken as an example, and the compression steps of the color difference components U and V are the same as the brightness components.

[0079] The invention proposes a multi-eye stereo video compression and decompression method based on fractal and H.264. Among them, the intermediate object is used as the basic layer to use the MCP principle to compress and encode, and the other objects are encoded separately using the principle of MCP+DCP. The intermediate destination I frame (the starting frame must be an I frame, and other frames can be set whether it is an I frame) adopts intra-frame prediction coding based on H.264, and obtains a reconstructed frame after filtering (as a reference frame for the base layer and the enhancement layer) , the P frame performs block motion compensation prediction (MCP) encoding, ca...

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Abstract

The invention provides a multi-view stereoscopic video compression and decompression method based on fractal and H.264. A middle view is used as a base layer and encoded on the principle of a motion compensated prediction (MCP) method in a compression mode, and other views are encoded on the principle of MCP + digitally controlled potentiometers (DCP) in a compression mode. Three views are taken for example, intra prediction coding of the H.264 is adopted by an I frame of the middle view, a rebuilt frame (as a reference frame) is obtained after filtration, a P frame of the middle view is encoded with block MCP by the utilization of the encoded rebuilt frame as the reference frame, the most matched fractal parameter of the block of each time is recorded, the fractal parameters are respectively substituted in a compression iterative function system to achieve a prediction frame of the P frame, and the rebuilt frame is obtained after filtration. The MCP + DCP is adopted for coding by a left view and a right view and a reference frame can be an encoded front frame of the respective view or an encoded frame of other views. Entropy encoding CALCV is used for compressing a residual frame of each frame and an exponential-Golomb code with symbols is used for compressing the fractal parameter.

Description

Technical field: [0001] The invention belongs to the field of video compression coding, and relates to the compression coding of multi-eye stereoscopic video. On the premise that the peak signal-to-noise ratio (PSNR) remains basically unchanged, it greatly reduces the computational complexity and improves the compression ratio, and provides multi-eye stereoscopic video coding. It lays the foundation for the real-time application of fractal video and further improves the performance of fractal video compression coding. Background technique: [0002] Compared with previous video coding standards, H.264 has better compression performance and "friendliness" for network transmission. The excellent compression performance of H.264 is due to the accumulation of the effects of various new technologies (see Wiegand T Sullivan, GJ Bjontegard G, et al.Overview of the H.264 / AVC video coding standard[J].IEEE Transaction on Circuits and Systems Video Technology, 2003,13(7):560-576.), (se...

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Application Information

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IPC IPC(8): H04N7/26H04N7/50H04N13/00H04N19/597
Inventor 祝世平张玲李丽芸
Owner 海宁经开产业园区开发建设有限公司
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