Method and system for selecting interpolation filter type in...

Details Method and system for selecting interpolation filter type in... Method and system for selecting interpolation filter type in...

2008-03-25

2008-03-25

An, Shawn S. (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C375S240150, C375S240160, C375S240250, C375S240170, C375S240140, C382S238000, C382S236000, C382S235000, C382S239000, C348S699000

Reexamination Certificate

active

10616894

ABSTRACT:
A method and system for coding a video sequence based on motion compensated prediction, wherein an interpolation filter is used to generate predicted pixel values for picture blocks in the video sequence. The interpolation filter for use in conjunction with a multi-picture type is shorter or having fewer coefficients than the interpolation filter for use in conjunction with a single-picture type. As such, the complexity of the interpolation filter for the multi-picture type can be reduced. Furthermore, the interpolation filter may be changed based on the characteristics of the block, the size and/or the shape of the block.

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IEEE ICIP 0-7803-7622-Jun. 2002; T. Wedi; “Adaptive Interpolation Filter for Motion Compensated Prediction”; pp. II.509-II.512; 2002.
Joint Video Team of ISE/IE MPEG & ITU-T VCEG, JVT-C052; K. Sato et al.; “Adaptive MC Interpolation Filter for Complexity Reduction”; pp. 1-6; 2002.
Joint Video Team of ISE/IE MPEG & ITU-T VCEG, JVT-C040; K. Chono et al.; “Adaptive Motion Interpolation on MB Basis”; pp. 1-21; 2002.
Proceedings of SPIE vol. 4472, SPIE 0277-786X/01; P. Topiwala et al.; “Overview and Performance Evaluation of the ITU-T Draft H.26L Video Coding Standard”; pp. 290-306; 2001.
Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG; T. Wiegand; “Joint Committee Draft (CD) of Joint Video Specification ITU-T rec. H. 264 ISO/IEC 14496-10 AVC JVT-C167”; May 2002.

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