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Image segmentation based error concealment method for entire right frame loss in stereoscopic video

A technology for stereoscopic video and image segmentation, applied in the field of error concealment, which can solve the problems of errors, the background of the reconstructed image and the noise at the edge of the object.

Inactive Publication Date: 2013-04-03
BEIHANG UNIV
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  • Abstract
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Problems solved by technology

Compared with the above method, the error concealment effect of this method is improved to a certain extent, but the background and object edges of the reconstructed image are prone to noise
[0008] To sum up, due to the particularity of stereoscopic video, traditional single-viewpoint video transmission error-resistance technology cannot be copied

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  • Image segmentation based error concealment method for entire right frame loss in stereoscopic video
  • Image segmentation based error concealment method for entire right frame loss in stereoscopic video
  • Image segmentation based error concealment method for entire right frame loss in stereoscopic video

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Embodiment Construction

[0062] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0063] The present invention provides an error concealment method based on image segmentation for the whole frame loss of the stereoscopic video right image, such as figure 1 shown, including the following steps:

[0064] Step 1: Divide the lost frame into a background area and a motion area in units of macroblocks:

[0065] If the stereoscopic video right view point t moment frame F r，t Lost, correctly decoded right-view frame F at time t-1 r，t-1 , left view point t-1 time frame F 1，t-1 and frame F at time t from the left viewpoint 1，t will be used to restore the right view point t time frame F r，t . According to the time and space correlation of stereoscopic video, first use the right view point t time frame F r，t The previous frame t-1 time frame F r，t-1 Carry out area division, divide the lost frame into background area and foreground area, and th...

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Abstract

The invention provides an image segmentation based error concealment method for entire right frame loss in a stereoscopic video, and belongs to the field of video image processing. The method comprises the following steps: dividing a loss frame into a background region and a movement region by taking a macro block as a unit, reversely projecting a movement vector to adjust region division, finding a pixel from a left view point t-1 moment frame, wherein the pixel is corresponding to a pixel in a right view point t-1 moment frame, and adaptively concealing a macro block of a foreground region and filling up holes in different modes. The image segmentation based error concealment method for the entire right frame loss in the stereoscopic video, provided by the invention, can be used for accurately segmenting the foreground and the background of the image at lower computation complexity, and concealing the background, a movement complex region and a movement rule region by using different methods, and has a wide application range; in addition, the method can be used for maintaining the integrity of a reconstructed image object and reducing the influence of irregular movement to the image quality as much as possible, and has a better concealment effect on the edge and texture of an object.

Description

technical field [0001] The invention belongs to the field of video image processing, and in particular relates to an error concealment method for the whole frame loss of the stereoscopic video right image based on image segmentation. Background technique [0002] As a new type of digital media with stereoscopic and interactive operation functions, multi-viewpoint video is an important direction of future video development. The images that humans perceive under natural conditions are all reflections of three-dimensional objects. Traditional single-view two-dimensional videos cannot truly reproduce natural scenes and cannot satisfy human primitive visual habits. The stereoscopic video (Stereoscopic Video) technology based on multi-viewpoint video processing is consistent with the generation principle of human brain stereo vision, and can bring people a more realistic visual experience. Multi-viewpoint stereoscopic video is a group of video signals obtained by shooting the sam...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N7/68H04N7/26H04N7/50H04N13/00H04N19/597H04N19/895
Inventor 刘荣科时琳关博深
Owner BEIHANG UNIV
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