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Dense shape and motion from region correspondences by factorization J. Ma and Narendra Ahuja In this paper, we propose an algorithm for
estimating dense shape and motion of dynamic piecewise planar scenes from
region correspondences using factorization. Region correspondences are used
since they are easier to establish and more reliable than either line or
point correspondences. The image measurements required are the centroid and area
for each region. Singular value decomposition is employed to find the basis
of range space of the motion, shape, and surface normal matrices. By imposing
model constraints, motion, shape, and surface normal can be recovered only
from region correspondences. Full Text: PDF |