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1 January 1990 Optical flow and depth from motion on the Connection Machine
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The Connection Machine has been demonstrated to be an efficient and fast computational engine for the solution of most vision problems. In this paper a system based on the Connection Machine is developed which is capable of computing the optic flow from image sequences at near real time, allowing the computation of one velocity field at a rate of 20 frames per second. Qualitative estimation of image motion allow the measurement of the "time to crash” of the objects in the scene; only local operations, which can be executed in parallel, are required. The system is shown to be robust with respect to a variety of noisy real image sequences; the optic flow can be computed with high accuracy, simply tuning the number of bits used for the computations and never changing much the computational speed. Several experiments performed on image sequences from real scenes are presented. An analysis of the performance of the system is carryed out together with a comparison with implementations of the same algorithm on other computing systems.
© (1990) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Massimo Tistarelli "Optical flow and depth from motion on the Connection Machine", Proc. SPIE 1293, Applications of Artificial Intelligence VIII, (1 January 1990);


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