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Proceedings Paper

An efficient and direct nonplanar rotation estimation algorithm for video applications
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Paper Abstract

We present a new method for the estimation of non-planar rotations, i.e. rotations around axis parallel to the image plane, in the context of video compression applications. This method is based on a non planar rotation model which assumes that the moving objects have a planar surface. The proposed block-based motion estimation approach is performed between consecutive or non-consecutive images, which may be contained large displacements, and aims at minimizing the motion compensation error. The efficiency of the method has been compared to the results obtained with the classical full search block matching approach. Experimental results have been done on real video sequences. These results show a significant gain in term of PSNR for the motion compensated P or B frames, compared to the classical full search block matching approach, while the coding cost of the additional motion information is very low, which demonstrates the interest of the proposed rotation model in the context of motion compensation for video compression applications.

Paper Details

Date Published: 23 June 2003
PDF: 9 pages
Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); doi: 10.1117/12.503417
Show Author Affiliations
Mireya S Garcia, IRISA/INRIA (France)
Henri Nicolas, IRISA/INRIA (France)


Published in SPIE Proceedings Vol. 5150:
Visual Communications and Image Processing 2003
Touradj Ebrahimi; Thomas Sikora, Editor(s)

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