Multi-pass algorithm of motion estimation in video encoding for generic GPU - Yu-Cheng Lin; Pei-Lun Li; Chin-Hsiang Chang; Chi-Ling Wu; You-Ming Tsao; Shao-Yi Chien (International Symposium on Circuits and Systems (ISCAS 2006), 21-24 May 2006, Island of Kos, Greece, 2006)