Technical Report CIS9519

TR#:CIS9519
Class:CIS
Title: DIRECT POSITIONING FROM GREY LEVEL IMAGES.
Authors: M. Lindenbaum
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Abstract: We propose here a very fast and fairly accurate method for estimating the position of an object in a given image. The positioning mechanism is extremely simple and requires only a single dot-product between this image and another image that serves as a gauge function. Such a computation, which has the minimal $O(n)$ complexity, can be implemented very fast using, say, some multiply-accumulate unit, leaving virtually nothing to do for the subsequent stages. This gauge function, which specifies a mapping from images to positioning parameters, is determined by a learning stage from the given set of images and the associated positions. The somewhat surprising ability of this simple, linear, mechanism to provide accurate estimates even in the presence of substantial interference, is demonstrated by experiments.
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