A multi-layer graph for dense stereo dynamic programming can improve synthesis of cyclopean virtual images by distinguishing between stereo disparities caused by occlusion and disparities caused by non-fronto-parallel surfaces. This distinction can be leveraged to reduce image artifacts, such as “halos”....http://www.google.fr/patents/US7809183?utm_source=gb-gplus-shareBrevet US7809183 - Gaze manipulation