A method for recognition of objects with undefined shapes is proposed for use in multispectral analysis. The method involves an orthogonalization procedure in an extended multidimensional spectral range along with separate utilization of information on object brightness. An optimization procedure is performed to reduce the numbers of two types of recognition errors. This method demonstrated a substantial advantage in terms of precision of recognition over the least square method, on which most recognition methods are based. (C) 2020 Optical Society of America
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