Discrete-time signal processing
Discrete-time signal processing
Multirate Digital Signal Processing
Multirate Digital Signal Processing
Motion- and aliasing-compensated prediction for hybrid video coding
IEEE Transactions on Circuits and Systems for Video Technology
Context-based adaptive binary arithmetic coding in the H.264/AVC video compression standard
IEEE Transactions on Circuits and Systems for Video Technology
Adaptive optimizing filter for inter-layer intra prediction in SVC
MM '09 Proceedings of the 17th ACM international conference on Multimedia
Bivariate feature localization for SIFT assuming a Gaussian feature shape
ISVC'10 Proceedings of the 6th international conference on Advances in visual computing - Volume Part I
Adaptive pre-interpolation filter for high efficiency video coding
Journal of Visual Communication and Image Representation
Efficient DSP implementation of fractional-pixel interpolation for AVS
PCM'12 Proceedings of the 13th Pacific-Rim conference on Advances in Multimedia Information Processing
Perceptual auto-regressive texture synthesis for video coding
Multimedia Tools and Applications
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In order to reduce the bit-rate of video signals, current coding standards apply hybrid coding with motion-compensated prediction and transform coding of the prediction error. In former publications, it has been shown that aliasing components contained in an image signal, as well as motion blur are limiting the prediction efficiency obtained by motion compensation. In this paper, we show that the analytical calculation of an optimal interpolation filter at particular constraints is possible, resulting in total coding improvements of 20% at broadcast quality compared to the H.264/AVC High Profile. Furthermore, the spatial adaptation to local image characteristics enables further improvements of 0.15 dB for CIF sequences compared to globally adaptive filter or up to 0.6 dB, compared to the standard H.264/AVC. Additionally, we show that the presented approach is generally applicable, i.e., also motion blur can be exactly compensated, if particular constraints are fulfilled.