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Coding method for free view point four-dimensional space video coding system

A technology of four-dimensional space and coding method, which is applied in the coding field of free-view four-dimensional space video coding system

Inactive Publication Date: 2012-09-19
SHANDONG UNIV
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Problems solved by technology

At present, the latest international and domestic research literature has not yet proposed a corresponding theory and structure for a cylindrical panoramic stereoscopic video coding compression system with a four-dimensional space structure.

Method used

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  • Coding method for free view point four-dimensional space video coding system
  • Coding method for free view point four-dimensional space video coding system
  • Coding method for free view point four-dimensional space video coding system

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Embodiment

[0031] A free-viewpoint 4D video encoding system that combines 2D video in cylindrical space with 3D video in planar space. Channel one (8) compresses and encodes luminance and chrominance information, and channel two (9) compresses and encodes depth information.

[0032] In channel one (8), the current images to be encoded are all radian-free images (1), so before predictive encoding, it is necessary to map a planar image to a cylindrical image (1-1) to increase the information of the radian dimension . The processed image frame with radian dimension (1-1) is predicted by intra-frame prediction (1-2) on the one hand, and the best prediction mode and predicted pixel value of intra-frame prediction and the corresponding absolute error sum (SAD )value. On the other hand, the processed image frame (1-1) with radian dimension also needs to be inter-frame predicted. In the process of inter-frame prediction, in order to make full use of the correlation between image frames betwee...

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Abstract

A coding method for a free view point four-dimensional space video coding system belongs to the technical field of video compression coding. The coding system is divided into two channels; a channel I compresses and codes brightness and chrominance information; a channel II compresses and codes depth information; and besides, in a practical application, a corresponding part of the coding system is allowed or forbidden according to requirements, so that corresponding cylinder full view video coding code stream, plane stereoscopic video coding stream or two-dimension video coding code stream. The free view point four-dimensional space video coding system has high expansibility, applicability, and limitless and broad application prospects.

Description

technical field [0001] The invention relates to a coding method of a free viewpoint four-dimensional space video coding system, belonging to the technical field of video compression coding. Background technique [0002] With the rapid development of information technology, various forms of stereoscopic video processing and applications have poured into people's lives, such as panoramic ring-screen movies, flat-screen stereoscopic TVs and movies, stereoscopic medical image imaging and transmission, robot-controlled stereoscopic imaging, virtual reality system etc. At the same time, the research on stereoscopic video processing algorithms and systems has become one of the fastest-growing research hotspots in the world in recent years. [0003] At present, the research on free-viewpoint stereoscopic video at home and abroad is nothing more than two forms in terms of space composition: cylindrical / spherical two-dimensional video and planar stereoscopic video. Planar stereoscop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/00H04N7/26H04N7/50H04N19/597
Inventor 周莉王少伟孙涛康晓
Owner SHANDONG UNIV
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