A method of unambiguous range estimation is provided for use with a range imaging system that derives phase images from image pixels of a digital image. The method involves generating (a) a first phase image having one or more ambiguous phase intervals and (b) at least one additional phase image that...http://www.google.de/patents/US6288776?utm_source=gb-gplus-sharePatent US6288776 - Method for unambiguous range estimation
