Near-real-time stereo matching method using temporal and spatial propagation of reliable disparity

Sungil Kang; Hyunki Hong

doi:10.1117/1.OE.53.6.063107

24 June 2014 Near-real-time stereo matching method using temporal and spatial propagation of reliable disparity

Sungil Kang, Hyunki Hong

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Optical Engineering, Vol. 53, Issue 6, 063107 (June 2014). https://doi.org/10.1117/1.OE.53.6.063107

Abstract

A stereo approach to resolve the occlusion problem in stereo video sequence is introduced. We define a measure to evaluate the reliability of an initial disparity in combination with a left-right consistency check. An initial matching cost volume is computed with an absolute difference-census measure. In the spatial propagation stage, the outlier with a low reliability value is replaced/updated with the reliable disparity information in the support region. Because previous methods establish correspondence on a per-frame basis, they cannot obtain temporally coherent disparity results over a stereo sequence. In order to overcome the occlusion problem in a dynamic situation, we employ the modified codebook with color, disparity, reliability, array of the matching cost, and final access time in a temporal propagation procedure. Experimental results show that the proposed algorithm with general-purpose computing on graphics processing units (GPGPU) provides better performance when applied to disparity maps of real-time indoor/outdoor scenes.

CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Sungil Kang and Hyunki Hong "Near-real-time stereo matching method using temporal and spatial propagation of reliable disparity," Optical Engineering 53(6), 063107 (24 June 2014). https://doi.org/10.1117/1.OE.53.6.063107

Published: 24 June 2014

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