1 January 2003 Efficient disparity estimation algorithm based on spatial correlation
Author Affiliations +
Optical Engineering, 42(1), (2003). doi:10.1117/1.1523944
Abstract
As one of the disparity estimation algorithms for stereoscopic images, we propose the block-based adaptive field-dependent search (AFDS) algorithm to reduce encoding time and increase image quality at the same time. The AFDS algorithm is a fast disparity estimation algorithm that uses the homogenous direction property of the disparity vector and the high spatial correlation between casual neighboring blocks on the epipolar line. Performance of the disparity estimator is improved using a dynamic search range and decreasing the disparity compensation error that is caused by objects taken by a camera at a short distance. As a result of the simulation, we can reduce the computational load up to 78% but can improve the peak SNR (PSNR) up to only about 0.2 to 2.8 dB, compared with the block-matching algorithm.
Jin-Woo Bae, Ho-Chong Park, Eun-Soo Kim, Ji-Sang Yoo, "Efficient disparity estimation algorithm based on spatial correlation," Optical Engineering 42(1), (1 January 2003). http://dx.doi.org/10.1117/1.1523944
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KEYWORDS
Cameras

Motion estimation

Optical engineering

Error analysis

Image quality

Computer simulations

Image compression

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