The image is broken down into parameters such as a Shape Comparison, Grayscale Comparison, Wavelet Comparison, and Color...http://www.google.com/patents/US7403652?utm_source=gb-gplus-sharePatent US7403652 - Image capture and identification system and processAdvanced Patent SearchPublication numberUS7403652 B2Publication typeGrantApplication numberUS 11/294,971Publication dateJul 22, 2008Filing dat