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Proceedings Paper

Non-epipolar rigidity constraint over image-to-image correspondences under paraperspective projection
Author(s): Ronald Chung
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Paper Abstract

In an earlier work, Bennett et al. proposed an algebraic condition for four point pairs over two images to be projected by a rigid object. However, the condition is valid only if the images are projected orthographically and from exactly the same viewing distance. As a sequel to two previous attempts in extending the rigidity condition to more general cases, this paper shows how a similar condition can be constructed in the case when the camera projection processes can be described by paraperspective projection. This paper also shows how the rigidity conditions is related to the well-known epipolar constraint under that class of camera projection models. The rigidity condition has potential applications in stereo matching, motion correspondence, and object segmentation.

Paper Details

Date Published: 20 October 1997
PDF: 12 pages
Proc. SPIE 3168, Vision Geometry VI, (20 October 1997); doi: 10.1117/12.279664
Show Author Affiliations
Ronald Chung, Chinese Univ. of Hong Kong (Hong Kong)

Published in SPIE Proceedings Vol. 3168:
Vision Geometry VI
Robert A. Melter; Angela Y. Wu; Longin Jan Latecki, Editor(s)

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