SYSTEM AND METHOD FOR ESTIMATING TARGET SIZE
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United States of America Patent
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Issued Date -
Jan 29, 2015
app pub date -
Dec 12, 2011
filing date -
Dec 12, 2011
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Abstract
The present invention relates to a system and method for estimating size of an object of known position on an image, especially on infrared imaging systems. The method comprises the steps of; receiving the pixel image including target object and a coordinate of a pixel on it, calculating pixel standard deviations within a rectangular window centred around that pixel, by successively enlarging the window by a step-size, and obtaining at least one window size versus standard deviation graph, checking whether the graph is monotonically decreasing or not, finding and making a record of the window size at the point where the standard deviation first starts to decrease, checking if a previously recorded window size is existent, estimating the window size, checking if the maximum iteration limit is exceeded, increasing the step-size and initial window size and estimating the window size as the predetermined minimum window size.
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