TY - GEN
T1 - Occlusion ambiguities in motion
AU - Geiger, Davi
AU - Diamantaras, Kostas I.
N1 - Publisher Copyright:
© Springer-Verlag Berlin Heidelberg 1994.
PY - 1994
Y1 - 1994
N2 - We address the problem of optical flow reconstruction and in particular the problem of resolving ambiguities near edges. They occur due to (i) the aperture problem and (ii) the occlusion problem, where pixels on both sides of an intensity edge are assigned the same velocity estimates (and confidence). However, these measurements are correct for just one side of the edge (the non occluded one). We note that the confidence measures are large at intensity edges and larger at the convex sides of the edges, i.e. inside corners, than at the concave side. We resolve the ambiguities through local interactions via coupled Markov random fields (MRF). The result is the detection of motion for regions of images with large global convexity.
AB - We address the problem of optical flow reconstruction and in particular the problem of resolving ambiguities near edges. They occur due to (i) the aperture problem and (ii) the occlusion problem, where pixels on both sides of an intensity edge are assigned the same velocity estimates (and confidence). However, these measurements are correct for just one side of the edge (the non occluded one). We note that the confidence measures are large at intensity edges and larger at the convex sides of the edges, i.e. inside corners, than at the concave side. We resolve the ambiguities through local interactions via coupled Markov random fields (MRF). The result is the detection of motion for regions of images with large global convexity.
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U2 - 10.1007/3-540-57956-7_20
DO - 10.1007/3-540-57956-7_20
M3 - Conference contribution
AN - SCOPUS:85027592012
SN - 9783540579564
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 175
EP - 180
BT - Computer Vision — ECCV 1994 - 3rd European Conference on Computer Vision, Proceedings
A2 - Eklundh, Jan-Olof
PB - Springer Verlag
T2 - 3rd European Conference on Computer Vision, ECCV 1994
Y2 - 2 May 1994 through 6 May 1994
ER -