Motion Estimation Based on Spline Interpolation in H.264/AVC Video Coder for Videoconferencing Application: Performance Versus Computation Load

The powerful H.264/AVC video coder involves a large encoding computational cost than the existing video standards due mainly to the motion-compensated estimation scheme based on a full search of multiple reference frames in the sequence. This strategy decreases the residual errors of the predicted f...

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Vydané v:Journal of signal processing systems Ročník 66; číslo 2; s. 113 - 119
Hlavní autori: Mokraoui, Anissa, Muñoz-Jiménèz, Vianney, Astruc, Jean-Pierre
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Boston Springer US 01.02.2012
Predmet:
Circuits and Systems
Coders
Computation
Computer Imaging
Electrical Engineering
Encoding
Engineering
Image Processing and Computer Vision
Pattern Recognition
Pattern Recognition and Graphics
Searching
Signal,Image and Speech Processing
Splines
Videoconferencing
Vision
Video coding
Interpolation
Non-uniform B-spline
Motion estimation
H.264/AVC
ISSN:1939-8018, 1939-8115
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Shrnutí:The powerful H.264/AVC video coder involves a large encoding computational cost than the existing video standards due mainly to the motion-compensated estimation scheme based on a full search of multiple reference frames in the sequence. This strategy decreases the residual errors of the predicted frames and may improve the performance of the video coder. However a great number of computations are usually wasted without improving significantly the quality of the decoded video mostly in videoconferencing applications. To reduce the encoding computational load and preserve the performance of the video coder, this paper proposes to substitute the motion-compensated estimation method implemented in H.264/AVC by a temporal spline interpolation. Simulations on several test sequences show that important encoding saving times are achieved with a competitive quality of the decoded video compared to the exhaustive search of multiple reference frames in the H.264/AVC video coder.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1939-8018
1939-8115
DOI:10.1007/s11265-011-0583-0