TY - GEN
T1 - Efficient motion re-estimation method based on k-means clustering for spatial resolution reduction transcoding
AU - Kim, Kyounghwan
AU - Hong, Soongi
AU - Choe, Yoonsik
PY - 2012
Y1 - 2012
N2 - In this paper, we present a spatial resolution reduction transcoding architecture for H.264/AVC with a low-complexity compensation technique. A fast motion vector re-estimation based on a k-means clustering algorithm is proposed for efficiently determining a motion vector and a reference frame. A motion vector refinement technique is used to further improve the rate-distortion performance without additional high complexity. The proposed method significantly reduces the motion vector estimation complexity up to 10 times while the loss of rate distortion performance is negligible with a decrease of 0.1dB in BD-PSNR and 3% increase in the BD-RATE.
AB - In this paper, we present a spatial resolution reduction transcoding architecture for H.264/AVC with a low-complexity compensation technique. A fast motion vector re-estimation based on a k-means clustering algorithm is proposed for efficiently determining a motion vector and a reference frame. A motion vector refinement technique is used to further improve the rate-distortion performance without additional high complexity. The proposed method significantly reduces the motion vector estimation complexity up to 10 times while the loss of rate distortion performance is negligible with a decrease of 0.1dB in BD-PSNR and 3% increase in the BD-RATE.
UR - http://www.scopus.com/inward/record.url?scp=84864050541&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84864050541&partnerID=8YFLogxK
U2 - 10.1109/PCS.2012.6213332
DO - 10.1109/PCS.2012.6213332
M3 - Conference contribution
AN - SCOPUS:84864050541
SN - 9781457720482
T3 - 2012 Picture Coding Symposium, PCS 2012, Proceedings
SP - 221
EP - 224
BT - 2012 Picture Coding Symposium, PCS 2012, Proceedings
T2 - 29th Picture Coding Symposium, PCS 2012
Y2 - 7 May 2012 through 9 May 2012
ER -