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Abstract:
The first part of this paper deals with a system-theoretical approach for the decomposition of multi-input systems into the sum of simpler systems. This approach is applied here to analyse the algorithm which represents the computations underlying the extraction of motion information from the optical environment by biological movement detectors. The second part concentrates on a specific model for motion computation known to be realized by the visual system of insects and of man. These detectors provide the visual system with information on both the velocity and structural properties of a moving pattern. In the third part of this article the properties of two-dimensional arrays of movement detectors are analyzed and their relations to meaningful physiological responses are discussed.
