Dept. of Electr. Eng., National Taiwan Univ.Chen, Tung-ChienTung-ChienChenHuang, Yu-WenYu-WenHuangTsai, Chuan-YungChuan-YungTsaiHuang, Chao-TsungChao-TsungHuangLIANG-GEE CHEN2007-04-192018-07-062007-04-192018-07-062005-0502714310http://ntur.lib.ntu.edu.tw//handle/246246/200704191001453https://www.scopus.com/inward/record.uri?eid=2-s2.0-34047141618&doi=10.1109%2fISCAS.2005.1464956&partnerID=40&md5=277246dd88b03320f8844ccee46ead6bDue to the multi-frame motion estimation (ME), H.264/AVC requires ultra high memory bandwidth. Conventional Multiple Reference frames Single Current macroblock (MRSC) scheme only considers the data reuse within one frame, requiring on-chip memory size and off-chip memory bandwidth in proportional to the number of reference frames. In this paper, a Single Reference frame Multiple Current macroblocks (SRMC) scheme is presented to further exploit the data reuse between multiple frames. With rescheduling of the macroblock (MB) procedures at frame level, one loaded search window can be utilized by multiple currentMBs in different frames. The demanded memory size and bandwidth for multi-frame ME can thus be reduced to those of MRSC scheme with only one reference frame. Moreover, based on SRMC, a system architecture for H.264/AVC encoding is proposed. For HDTV specifications, 62.21KB (74.8%) of SRAM and 364.3MB/s (62.6%) of system bandwidth are saved in comparison with MRSC scheme. © 2005 IEEE.application/pdf117020 bytesapplication/pdfen-USData reuse; H.264/AVC; Macro block; Memory size; Multi-frame; Multi-frame motion estimation; Multiple currents; Multiple-frame; Multiple-reference frames; Off-chip memories; On chip memory; Reference frame; System architectures; System bandwidth; Ultra-high; Bandwidth; Composite micromechanics; Digital television; Error correction; Image quality; Motion Picture Experts Group standards; Television broadcasting; Motion estimationconference paper10.1109/ISCAS.2005.14649562-s2.0-34047141618http://ntur.lib.ntu.edu.tw/bitstream/246246/200704191001453/1/01464956.pdf