影响立体匹配解决方案的空间相互作用的时间因素。

Temporal aspects of spatial interactions affecting stereo-matching solutions.

作者信息

Zhang Zhi-Lei, Cantor Christopher, Ghose Tandra, Schor Clifton M

机构信息

Program in Vision Science, University of California at Berkeley, Berkeley, CA 94720-2020, USA.

出版信息

Vision Res. 2004 Dec;44(27):3183-92. doi: 10.1016/j.visres.2004.07.024.

DOI:10.1016/j.visres.2004.07.024

PMID:15482804

Abstract

Stereo-matching solutions minimize disparity relative to the horopter (minimum-absolute-disparity or MAD), and differences in disparity between adjacent features (minimum-relative-disparity or MRD). When placed in conflict, spatial proximity promotes MRD over MAD solutions. How does temporal proximity of neighboring features affect strength of these spatial interactions? We quantified the inter-stimulus interval (ISI) over which an unambiguous disparity pattern influenced stereo-matches for patterns with several possible solutions. Likelihood of MRD decreased as ISI increased (48.9 ms time constant) and increased as contrast was reduced for short ISIs, suggesting that monocular persistence (temporal impulse response) underlies the temporal interaction.

摘要

立体匹配解决方案将相对于双眼单视界的视差最小化（最小绝对视差或MAD），以及相邻特征之间的视差差异（最小相对视差或MRD）。当出现冲突时，空间邻近性会促使采用MRD而非MAD解决方案。相邻特征的时间邻近性如何影响这些空间相互作用的强度？我们量化了刺激间隔（ISI），在这个间隔内，对于具有几种可能解决方案的模式，明确的视差模式会影响立体匹配。随着ISI增加（时间常数为48.9毫秒），MRD的可能性降低，而在短ISI情况下，随着对比度降低，MRD的可能性增加，这表明单眼持续性（时间脉冲响应）是时间相互作用的基础。