TY - GEN
T1 - A hardware-oriented high precision motion vector prediction scheme for MPEG-2 to H.264 transcoding
AU - Wei, Xianghui
AU - Tang, Wenming
AU - Tian, Guifen
AU - Ikenaga, Takeshi
AU - Goto, Satoshi
PY - 2008/9/22
Y1 - 2008/9/22
N2 - In hardware design of MPEG-2 to H.264 transcoder, MPEG-2 motion vector (MV) is often reused as search center to reduce the search range for H.264 motion estimation (ME) module. But MPEG-2 MV is not always accurate search center. The common-used comparison algorithm for motion vector predictor (MVP) is hardly implemented in hardware. In this paper, we propose a MV prediction algorithm for hardware design based on smoothness of MPEG-2 MV field. Experiment results show that the proposed MV prediction method with a small search range can approach the performance of full search algorithm with a large search range. Using the proposed algorithm, the motion prediction accuracy is significantly improved compared with the method only using MPEG-2 MV, especially in sequence with fast motion and complicate background.
AB - In hardware design of MPEG-2 to H.264 transcoder, MPEG-2 motion vector (MV) is often reused as search center to reduce the search range for H.264 motion estimation (ME) module. But MPEG-2 MV is not always accurate search center. The common-used comparison algorithm for motion vector predictor (MVP) is hardly implemented in hardware. In this paper, we propose a MV prediction algorithm for hardware design based on smoothness of MPEG-2 MV field. Experiment results show that the proposed MV prediction method with a small search range can approach the performance of full search algorithm with a large search range. Using the proposed algorithm, the motion prediction accuracy is significantly improved compared with the method only using MPEG-2 MV, especially in sequence with fast motion and complicate background.
UR - http://www.scopus.com/inward/record.url?scp=51849109016&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=51849109016&partnerID=8YFLogxK
U2 - 10.1109/CISP.2008.775
DO - 10.1109/CISP.2008.775
M3 - Conference contribution
AN - SCOPUS:51849109016
SN - 9780769531199
T3 - Proceedings - 1st International Congress on Image and Signal Processing, CISP 2008
SP - 278
EP - 282
BT - Proceedings - 1st International Congress on Image and Signal Processing, CISP 2008
T2 - 1st International Congress on Image and Signal Processing, CISP 2008
Y2 - 27 May 2008 through 30 May 2008
ER -