Abstract:
The paper studies new constraints that characterize
a 3D–motion field as observed from the relative motion of a
camera. Such constraints are derived from the relative change
in size of observed local image regions over time.
To consider the image distortions that arise in a projective
camera, a modified affine shape adaptation scheme is proposed
for the case of blob detection, with an emphasis on robustness
under important viewpoint changes and changes in lighting
conditions. The resulting features and constraints are used to
characterize the motion of an ego-vehicle by means of their
navigation angles.
We present results on synthetic as well as on real-world image
sequences.
Description:
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