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Three-dimensional video encoding method based on depth image rendering

A technology of depth image and stereoscopic video, which is applied in the field of stereoscopic video coding based on depth image rendering, and can solve the problem of reducing the coding rate of stereoscopic video.

Inactive Publication Date: 2012-05-02
NINGBO UNIV
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Problems solved by technology

At present, there are methods based on view synthesis prediction and right view down sampling (down sampling) to encode the right view video of stereoscopic video, so as to reduce the coding rate of stereoscopic video

Method used

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  • Three-dimensional video encoding method based on depth image rendering
  • Three-dimensional video encoding method based on depth image rendering
  • Three-dimensional video encoding method based on depth image rendering

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Embodiment Construction

[0078] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0079] A stereoscopic video encoding method based on depth image rendering proposed by the present invention, such as figure 1 As shown, it mainly includes the following steps:

[0080] ①Define the unprocessed color stereoscopic video with color space YUV and its corresponding depth stereoscopic video captured by an external stereoscopic video capture tool as the original 3D stereoscopic video, which includes the original left-viewpoint 3D video in the airspace Video and original right-view 3D video, original left-view 3D video includes original left-view color video and original left-view depth video, original left-view color video is mainly composed of original left-view color images of several frame groups, original left-view depth video It is mainly composed of original left-viewpoint depth images of several frame groups. The original rig...

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Abstract

The invention discloses a three-dimensional video encoding method based on depth image rendering. The encoding method disclosed by the invention comprises the following steps of: projecting an original left-viewpoint colorful image to a right viewpoint from a left viewpoint through a method based on the depth image rendering, so as to obtain a residual image of an rendered image of an original right-viewpoint colorful image and the original left-viewpoint colorful image; carrying out pre-processing operation on the residual image and encoding the original left-viewpoint colorful image and the pre-processed residual image; and finally, obtaining a finally-reconstructed image of the decoded right-viewpoint colorful image according to the rendered image of the decoded right-viewpoint colorful image and the decoded residual image. According to the invention, on the premise of ensuring the higher reconstruction quality of the right-viewpoint colorful image, the encoding efficiency of a three-dimensional video is greatly improved.

Description

technical field [0001] The invention relates to a video signal encoding and compression method, in particular to a stereoscopic video encoding method based on depth image rendering. Background technique [0002] Since the beginning of this century, with the digital 2D (two-dimensional) video technology becoming more and more mature, and the rapid development of computer, communication and network technology, people have a strong demand for a new generation of video systems. The current two-dimensional video system is difficult to meet the user's needs for three-dimensionality and viewpoint interaction when representing natural scenes. (Stereo) 3D video system is more and more popular because it can provide a brand-new visual experience with stereoscopic effect and viewpoint interaction. It has broad application prospects. Compared with single-channel video, stereoscopic video needs to process at least twice the amount of data. Therefore, it is an urgent problem to reduce t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/00H04N15/00H04N7/26H04N19/186H04N19/597
Inventor 邵枫蒋刚毅郁梅
Owner NINGBO UNIV
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