Scene recognition system and method employing low and high level feature processing

Abstract From the Canadian patent

Image data is processed by a low level feature detection processor that extractslow level features from an image. This is accomplished by converting a matrix of image data into a matrix of orthogonalicons that symbolically represent the image scene using a predetermined set of attributes. The orthogonal icons serve as the basis of processing by means of a high level graph matching processor which employs symbolicscene segmentation description, and recognition processing that is performed subsequent to the low level feature detection. This processing generates attribute graphs representative of target objects present in the image scene. High level graph matching compares predetermined …