標題: Obtaining base edge correspondence in stereo images via quantitative measures along C-diagonals
作者: Chuang, JH
Chiu, JM
Chen, Z
資訊工程學系
Department of Computer Science
關鍵字: stereo vision;feature correspondence;calibration plate;viewpoint invariant;cross ratio;quantitative measure
公開日期: 1-Jan-1997
摘要: We propose a novel approach to solving the object edge correspondence problem for stereo images. For an object placed on a calibration plate (C-plate), the proposed approach first obtains the correspondences of the object edges lying on the C-plate (the base edges) via quantitative measures of locations of the intersections of the extended line of the edges and the diagonals of the C-plate (C-diagonals) using cross ratios. The measures an viewpoint invariant for an object base edge, and are expressed in the number of image pixels. Special cases which need only coarse calculations, as well as those which require extra measures for additional point features, are also considered, The proposed approach requires 2-D image data only, and is robust in the presence of errors in the feature detection. Experimental results are presented for polyhedral and curved objects to demonstrate the effectiveness of the proposed approach. (C) 1997 Elsevier Science B.V.
URI: http://hdl.handle.net/11536/853
ISSN: 0167-8655
期刊: PATTERN RECOGNITION LETTERS
Volume: 18
Issue: 1
起始頁: 87
結束頁: 95
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  1. A1997WN18700010.pdf