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Optimal Speed Measurement by Optical Flow Using Line Image Sequences

P. Thévenaz, H. Hügli

Proceedings of the Fourth European Signal Processing Conference on Theories and Applications (EUSIPCO'88), Grenoble, French Republic, September 5-8, 1988, pp. 1629-1632.



The authors have developed a method for measuring velocity with a set of two line image cameras, assuming unidirectional motion. This method yields an optimal average speed value for a Gaussian speed distribution, based upon a criterion of minimal confidence interval within a set of points. In practical experiments, the Gaussian hypothesis is confirmed, whilst the criterion has proven to be useful and gives good results.


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