Title
Efficient Motion Re-Estimation Method Based On K-Means Clustering For Spatial Resolution Reduction Transcoding
Abstract
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.
Year
DOI
Venue
2012
10.1109/PCS.2012.6213332
2012 PICTURE CODING SYMPOSIUM (PCS)
Keywords
Field
DocType
motion estimation,k means clustering algorithm,spatial resolution,estimation,k means clustering,decoding,video transcoding,reference frame,vectors,transcoding
Reference frame,Computer vision,Transcoding,Block-matching algorithm,Quarter-pixel motion,Computer science,Motion compensation,Theoretical computer science,Artificial intelligence,Motion estimation,Cluster analysis,Motion vector
Conference
Citations 
PageRank 
References 
2
0.45
2
Authors
3
Name
Order
Citations
PageRank
Kyoung-Hwan Kim171.60
Soongi Hong232.09
Yoonsik Choe39128.68