DocumentCode :
2350159
Title :
A New Block Based Motion Estimation with True Region Motion Field
Author :
Huska, Jozef ; Kulla, Peter
Author_Institution :
Slovak Univ. of Technol., Bratislava
fYear :
2007
fDate :
9-12 Sept. 2007
Firstpage :
182
Lastpage :
188
Abstract :
In this paper a new block based motion estimation algorithm is presented. The algorithm, named as block based motion estimation with true region motion field, is actually based on the successive motion estimation from the highest confidence motion vectors to lowest one. It is utilizing fact that the image pixels corresponding to the same object projection all account similar movement. By estimating motion vector first for the blocks which incorporate at least two different spatial gradient directions (corner blocks) we got reliable estimate for the movement of the other blocks (edge and flat blocks) associated with the same object projection. After than it is only the subject of correct interpolation technique with a refining step to calculate rest of the missing motion vectors. This strategy eliminates chaotic motion vectors and gives motion field more corresponding to a true motion in image sequence, while incorporating small prediction PSNR increase against fast algorithms.
Keywords :
gradient methods; image resolution; interpolation; motion estimation; PSNR; block based motion estimation; chaotic motion vectors; edge blocks; flat blocks; image pixels; interpolation technique; object projection; spatial gradient directions; successive motion estimation; true region motion field; Chaos; Image sequences; Information technology; Interpolation; Motion estimation; PSNR; Pixel; Recursive estimation; Search methods; Video coding; motion estimation; multi stage search; recursive estimation; search methods; true motion field;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
EUROCON, 2007. The International Conference on "Computer as a Tool"
Conference_Location :
Warsaw
Print_ISBN :
978-1-4244-0813-9
Electronic_ISBN :
978-1-4244-0813-9
Type :
conf
DOI :
10.1109/EURCON.2007.4400407
Filename :
4400407
Link To Document :
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