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Issue No.08 - August (1992 vol.14)
pp: 806-825
ABSTRACT
<p>A computational approach to image matching is described. It uses multiple attributes associated with each image point to yield a generally overdetermined system of constraints, taking into account possible structural discontinuities and occlusions. In the algorithm implemented, intensity, edgeness, and cornerness attributes are used in conjunction with the constraints arising from intraregional smoothness, field continuity and discontinuity, and occlusions to compute dense displacement fields and occlusion maps along the pixel grids. The intensity, edgeness, and cornerness are invariant under rigid motion in the image plane. In order to cope with large disparities, a multiresolution multigrid structure is employed. Coarser level edgeness and cornerness measures are obtained by blurring the finer level measures. The algorithm has been tested on real-world scenes with depth discontinuities and occlusions. A special case of two-view matching is stereo matching, where the motion between two images is known. The algorithm can be easily specialized to perform stereo matching using the epipolar constraint.</p>
INDEX TERMS
two perspective views matching; pattern recognition; image matching; structural discontinuities; occlusions; edgeness; cornerness attributes; intraregional smoothness; field continuity; discontinuity; dense displacement fields; pixel grids; multiresolution multigrid structure; blurring; depth discontinuities; stereo matching; pattern recognition; picture processing
CITATION
N. Ahuja, T.S. Huang, "Matching Two Perspective Views", IEEE Transactions on Pattern Analysis & Machine Intelligence, vol.14, no. 8, pp. 806-825, August 1992, doi:10.1109/34.149592
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