Title :
Variable size block motion estimation
Author :
Shckler, D. ; Ozturk, Y. ; Abut, H.
Author_Institution :
Dept. of Electr. & Comput. Eng., San Diego State Univ., CA, USA
Abstract :
The success of video compression standards H.261/H.263, MPEG-1/MPEG-2 is greatly due to fairly efficient motion detection, estimation and compensation stages. In this study, we attempt to improve the inherent search process of the motion estimation and the compensation stage in some application specific cases including highway traffic video sequences. The proposed variable block size motion estimation approach takes advantage of the highly correlated spatial motion in highway traffic sequences for fast yet efficient motion estimation. The methodology presented outperforms the modified logarithmic search (MLS) and the conjugate directions search (CDS) algorithm in reduced complexity and residual entropy.
Keywords :
code standards; computational complexity; correlation methods; image sequences; motion compensation; motion estimation; road traffic; search problems; telecommunication standards; vector quantisation; video coding; H.261/H.263; MPEG-1/MPEG-2; conjugate directions search algorithm; correlated spatial motion; efficient motion estimation; fast motion estimation; highway traffic video sequences; modified logarithmic search; motion compensation; motion detection; reduced complexity; residual entropy; search process; variable size block motion estimation; vector quantizer; video compression standards; Computational complexity; Entropy; Image coding; Motion compensation; Motion detection; Motion estimation; Road transportation; Transform coding; Video compression; Video sequences;
Conference_Titel :
Signals, Systems & Computers, 1998. Conference Record of the Thirty-Second Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-5148-7
DOI :
10.1109/ACSSC.1998.750984
