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Optical Flow Estimation Using Line Image Sequences

P. Thévenaz, H. Hügli

Proceedings of the British Pattern Recognition Association Fourth International Conference on Pattern Recognition (BPRA'88), Cambridge, United Kingdom, March 28-30, 1988, [Lecture Notes in Computer Science, vol. 301, J. Kittler, Ed., Springer-Verlag, 1988], pp. 468-477.

Presents and evaluates a method for measuring the speed of objects in line image sequences. In a line sequence, a line corresponds to a fixed line position in the real scene, and the objects move against it. The line image sequence is a space-time two-dimensional image giving a good record of moving objects. The method uses two such line image sequences and estimates the object speed by optical flow computation. Unidirectional movement of the objects is assumed which simplifies the optical flow computation and makes it a simple method to implement. The usefulness and performance of the method is shown by an example comprising several vehicles of different speed. The performance evaluation shows good linearity and low error.

AUTHOR="Th{\'{e}}venaz, P. and H{\"{u}}gli, H.",
TITLE="Optical Flow Estimation Using Line Image Sequences",
BOOKTITLE="Proceedings of the British Pattern Recognition
        Association Fourth International Conference on Pattern Recognition
editor="Kittler, J.",
series="Lecture Notes in Computer Science",
address="Cambridge, United Kingdom",
month="March 28-30,",

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