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Automatic Recognition of Changes in Urban Development from Aerial Photographs

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1 Author(s)

A computer is programmed to detect changes in two aerial photographs of the same region taken at different times. A nonlinear registration technique is used to partition the photographs into cell pairs. Three feature measurements called the two-dimensional correlation coefficient, the average entropy change per picture element, and the high-intensity probability change per picture element are calculated for each cell pair. The pattern recognition system is trained on a set of learning samples and then tested on an independent set of test samples. Experimental error probability curves are presented as a measure of the system effectiveness.

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Systems, Man and Cybernetics, IEEE Transactions on  (Volume:SMC-1 ,  Issue: 3 )