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Multi-grade hybrid predictive coding structure of stereo element images

A hybrid prediction and multi-level technology, applied in the direction of image communication, stereo system, electrical components, etc., can solve the problems of reducing image correlation, coding efficiency limitation, and only two for a long time, so as to protect correlation and improve coding efficiency effect

Inactive Publication Date: 2011-04-06
JILIN UNIV
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Problems solved by technology

However, this method changes the spatial position of each image in the process of rearranging the stereoscopic element images, which reduces the correlation between images to a certain extent; in addition, in the single-view video predictive coding structure, predictive coding The direction of is one-dimensional, and the maximum number of reference images can only reach two, so the coding efficiency is limited by the predictive coding structure

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  • Multi-grade hybrid predictive coding structure of stereo element images
  • Multi-grade hybrid predictive coding structure of stereo element images

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Embodiment Construction

[0017] The present invention is a multi-level hybrid predictive coding structure of a stereo element image, such as figure 1 shown. figure 1 , denote each row and column of the stereo element image array as R n 、C n .

[0018] Divide stereo meta-images into two types, including key images ( figure 1 marked as bold blocks) and non-key images ( figure 1 marked as thin line blocks). It selects some stereo element images separated by a certain distance in the row and column directions in the stereo element image array as key images, and the remaining stereo element images as non-key images;

[0019] Based on the key image, the stereo element image array is divided into two-dimensional image group arrays, which are realized by the following specific steps: a key image, all non-key images between this key image and the previous key image in the row and column direction image, and all non-key images in the area surrounded by the above-mentioned non-key images form an image grou...

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Abstract

The invention relates to a multi-grade hybrid predictive coding structure of stereo element images, which belongs to the technical field of stereo video coding. The stereo element images are divided into key images and non-key images; a stereo element image array is divided into a two-dimensional image group array by taking the key images as reference; the key images are coded by image intra prediction; and the non-key images are coded in different prediction modes selected according to the positions of the non-key images in corresponding image groups. Compared with the conventional single-view point video predictive coding structure, the multi-grade hybrid predictive coding structure of the stereo element images has the advantages that: the spatial position of each stereo element image is not changed, and most of the stereo element images are provided with more reference images for predictive coding at the same time, so that the coding efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of stereo video coding. Background technique [0002] Most of the current mainstream display technologies are limited to two-dimensional display, and the image lacks a sense of three-dimensionality, depth and reality. Compared with two-dimensional display, stereoscopic display restores the depth information lost during projection, and can present three-dimensional stereoscopic images on the screen, with greater information content and stronger appeal. There are mainly two types of stereoscopic display technologies: a stereoscopic display method utilizing binocular parallax, and a true stereoscopic display method. The first type of method is easy to implement and has low cost, but generally needs to wear special optical glasses to watch stereoscopic images and easily causes visual fatigue. There are mainly three kinds of methods in the second category: holography, volumetric display technology, and combined...

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Application Information

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IPC IPC(8): H04N7/26H04N7/32H04N13/00H04N19/597
Inventor 王世刚韦健金福寿陈贺新赵岩王学军吕源治
Owner JILIN UNIV
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