Systems and methods for segmenting an image into at least two layers, a foreground and a background layer include rough labeling or segmenting at least a portion of the image into foreground and background pixels. The rough labeled pixels may be refined by using local classifications. Additional processes...http://www.google.com.tw/patents/US7907778?utm_source=gb-gplus-share專利 US7907778 - Segmentation-based image labeling
