Efficient Motion Estimation for H.264 Codec by Using Effective Scan Ordering

Jeongae PARK  Misun YOON  Hyunchul SHIN  

IEICE TRANSACTIONS on Communications   Vol.E90-B   No.7   pp.1839-1843
Publication Date: 2007/07/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e90-b.7.1839
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Devices/Circuits for Communications
motion estimation,  absolute difference,  H.264,  FPGA,  

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Motion estimation (ME) is a computation intensive procedure in H.264. In ME for variable block sizes, an effective scan ordering method has been devised for early termination of absolute difference computation when the termination does not affect the performance. The new ME circuit with effective scan ordering can reduce the amount of computation by 70% compared to JM8.2 and by 30% compared to the disable approximation unit (DAU) approach.