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This paper presents a new algorithm for computing a distance transform, particularly suitable for massively parallel cellular processor arrays. The proposed Enhanced City Block Distance Transform (ECBDT) achieves good approximation to Euclidean distances, operating with 'increment' and 'minimum' operations only, and requiring only local 4-neighbour communication. The distance values are calculated...
We present a new approach to execution of global image processing operations on massively parallel cellular processor arrays. Combining conventional synchronous processing with simple asynchronous propagations we achieve performance increase on global operations without additional hardware cost. By the example of watershed transformation we demonstrate the benefits of mixed synchronous/ asynchronous...
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