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Visual sensation-based stereo video coding method

A technology of stereoscopic video coding and stereoscopic video, which is applied in the field of stereoscopic video coding based on visual perception, and can solve problems such as reducing the bit rate of stereoscopic video coding and not making full use of redundant information of stereoscopic video

Inactive Publication Date: 2014-06-04
NINGBO UNIV
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Problems solved by technology

Compared with single-channel video, stereoscopic video needs to process at least double the amount of data. Therefore, it is an urgent problem to reduce the encoding bit rate of stereoscopic video as much as possible without affecting the subjective quality of stereoscopic video.
[0003] However, the existing research on stereoscopic video coding has considered the redundant information between viewpoints more, but has not fully utilized the redundant information of stereoscopic video

Method used

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  • Visual sensation-based stereo video coding method
  • Visual sensation-based stereo video coding method
  • Visual sensation-based stereo video coding method

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Embodiment Construction

[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0053] A stereoscopic video coding method based on visual perception proposed by the present invention, its flow chart is as follows figure 1 As shown, it includes the following steps:

[0054] ① Define the unprocessed stereoscopic video captured by external stereoscopic video capture tool and the color space is YUV as the original stereoscopic video. It is mainly composed of left-viewpoint images of several frame groups, and the original right-viewpoint video is mainly composed of right-viewpoint images of several frame groups. For the left-viewpoint image at time t in the left-viewpoint original video, it is recorded as For the right view image at time t in the original right view video, it is recorded as Among them, i=1, 2, 3 respectively represent the three components of the YUV color space, the first component of the YUV color space i...

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Abstract

The invention discloses a visual sensation-based stereo video coding method, which employs binocular vision masking effect, temporal masking effect and deep sensation property of human stereo visual sensation to background illumination and contrast to obtain a stereo minimal perceptible change image of a right-view image when the human eyes can sense quality change of stereo image, and coding different regions of the right-view image by using different coding quantization parameters according to a basic coding quantization parameter and the stereo minimal perceptible change value of the right-view image under the condition of fixed left-view image quality. The method can fully eliminate visual redundant information of the stereo video, and greatly improve coding efficiency of the stereo video on the premise of ensuring the whole quality of the stereo image.

Description

technical field [0001] The invention relates to a video signal encoding and compression method, in particular to a visual perception-based stereoscopic video encoding method. Background technique [0002] Since the beginning of this century, with the digital 2D (two-dimensional) video technology becoming more and more mature, as well as 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 becoming more and more popular because it can provide a brand-new visual experience with three-dimensional sense 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 proble...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N13/00H04N19/597
Inventor 邵枫江东郁梅蒋刚毅李福翠
Owner NINGBO UNIV
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