Systems and methods for image attention analysis are described. In one aspect, image attention is modeled by preprocessing an image to generate a quantized set of image blocks. A contrast-based saliency map for modeling one-to-three levels of image attention is then generated from the quantized image...http://www.google.ca/patents/US7400761?utm_source=gb-gplus-sharePatent US7400761 - Contrast-based image attention analysis framework