Qin Liu Yiqing Huang Satoshi Goto Takeshi Ikenaga Hardware-Oriented Early Detection Algorithms for 4×4 and 8×8 All-Zero Blocks in H.264 1063-1071 2009 92-A IEICE Transactions 4 http://search.ieice.org/bin/summary.php?id=e92-a_4_1063&category=A&year=2009&lang=E&abst= db/journals/ieicet/ieicet92a.html#LiuHGI09