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» Video Coding Using Spatially Varying Transform
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ICIP
2000
IEEE
14 years 9 months ago
Long-Term Memory Motion-Compensated Prediction for Robust Video Transmission
Long-term memory predictionextends the spatial displacement vector utilized in hybrid video coding by a variable time delay permitting the use of more than one reference frame for...
Bernd Girod, Klaus Stuhlmüller, Niko Fär...
ICASSP
2007
IEEE
13 years 9 months ago
Adaptive Multi-Reference Downhill Simplex Search Based on Spatial-Temporal Motion Smoothness Criterion
Multi-reference frame motion estimation improves the accuracy of motion compensation in video coding. However, it also increases computational complexity dramatically. In this pap...
Wei-Hau Pan, Chen-Kuo Chiang, Shang-Hong Lai
ICIP
2007
IEEE
13 years 7 months ago
Analysis of Utility Functions for Video
In this paper, we formulate the utility functions of distortion and Peak Signal-to-Noise Ratio (PSNR) which are generally used for the performance evaluation of video coding appli...
Cheolhong An, Truong Q. Nguyen
ICIP
2002
IEEE
14 years 9 months ago
Reduced DCT approximations for low bit rate coding
Transform approximations are explored for speeding up the software compression of images and video. Faster approximations are used to replace the regular DCT whenever only few DCT...
Ricardo L. de Queiroz
TIP
2002
81views more  TIP 2002»
13 years 7 months ago
Fractal image compression with region-based functionality
Region-based functionality offered by the MPEG-4 video compression standard is also appealing for still images, for example to permit object-based queries of a still-image database...
Kamel Belloulata, Janusz Konrad