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DIBR hole filling method based on background extraction and partition recovery

A technology of background extraction and hollowing, applied in 3D image processing, image data processing, instruments, etc., can solve the problems of image distortion and low image reliability, and achieve the effect of reliable filling effect

Active Publication Date: 2014-07-02
FUZHOU UNIV
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Problems solved by technology

However, there is a certain deviation between the image obtained by interpolation and the real image, the reliability of image filling is relatively low, and the image of the filled area has a certain distortion

Method used

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  • DIBR hole filling method based on background extraction and partition recovery
  • DIBR hole filling method based on background extraction and partition recovery
  • DIBR hole filling method based on background extraction and partition recovery

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Embodiment Construction

[0040] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0041] A DIBR hole filling method based on background extraction and partition repair of the present invention comprises the following steps,

[0042] Step S01: Use the video sequence to reconstruct the background image and the background depth map: use the video sequence and the corresponding depth map sequence to compare the corresponding depth value of each pixel in each frame, and use the pixel with the maximum depth value as The pixels of the background image, the real background image and the corresponding background depth map are obtained by frame-by-frame comparison;

[0043] Step S02: Calculating the foreground image area in the screen: using the calculation method of energy minimization, an energy model is established for the depth relationship between a pixel and surrounding pixels, and it is judged whether the pixel belongs to...

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Abstract

The invention relates to a DIBR hole filling method based on background extraction and partition recovery. First, a video sequence is utilized to rebuild a background image and a background depth image, the video sequence and a depth image sequence corresponding to the video frequence are used to compare the depth value, corresponding in all images, of all pixels, the pixel with the largest depth value is used as the pixel of the background image, a real background image and a background depth image corresponding to the background image are obtained through frame-by-frame comparison, then, a foreground image area in a picture is calculated, and finally holes in different ares are filled through different strategies. According to the method, different filling methods are used for holes in different areas, so that a reliable and real filling effect can be obtained. From experimental results, PSNR data obtained through the method are better than those of other algorithms, and structure similarity compared with real viewpoints can reach 99.1% and is improved by more than 10% than that of traditional method.

Description

technical field [0001] The invention relates to a DIBR hole filling method based on background extraction and partition repair. Background technique [0002] In recent years, 3D display technology has developed rapidly. Its basic principle is to receive two images with a certain parallax through the human eyes, and the brain fuses the images to form a three-dimensional effect. A common method for obtaining a 3D video is to use two cameras to shoot at the same time to obtain image information from left and right viewpoints. Another method is to collect a video image while collecting the corresponding depth map. The depth map shows the distance from each pixel in the video to the camera, and then obtain images of other viewpoints through depth map-based rendering technology (DIBR). . A new viewpoint image can be rendered from a reference viewpoint and a corresponding depth map by using a depth map-based viewpoint rendering method. In the process of drawing the viewpoint, si...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N13/00G06T15/00
Inventor 郭太良林志贤叶芸林金堂姚剑敏
Owner FUZHOU UNIV
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