用于立体图像编码的自适应块匹配视差估计算法

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A disparity estimation algorithm for stereo image coding with an adaptive block matching

HAN Jun-gong;LU Zhao-yang

(State Key Lab. of Integrated Service Networks, Xidian Univ., Xi'an 710071, China)

Received:1900-01-01 Revised:1900-01-01 Online:2004-06-20 Published:2004-06-20

Abstract

Abstract: This paper presents a novel disparity estimation algorithm with an adaptive window based on some references. Firstly, the image is divided into some fix-blocks. Then, its disparity vectors are estimated using these fix-blocks. Secondly, the intensity error between one block and its corresponding block is calculated to determine whether an adpative window is adopted. The variance of intensity error is used to control the shape and size of the matching window. Finally, the process of disparity estimation is resumed using this new matching window and the final disparity vector is obtained. Shown by experimetns, the veracity of this algorithm is better than the traditional fix-block algorithm, and the efficiency is higher than that of some adaptive-block matching algorithm used in stereo matching. So this algorithm is a simple and an applicable disparity estimation algorithm that is adaptive to the encoding system.

Key words: disparity estimation, block matching, adaptive, encoding system

CLC Number:

TP391.4

HAN Jun-gong;LU Zhao-yang.

A disparity estimation algorithm for stereo image coding with an adaptive block matching

[J].J4, 2004, 31(3): 347-351.

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A disparity estimation algorithm for stereo image coding with an adaptive block matching

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