ITCS '09 Proceedings of the 2009 International Conference on Information Technology and Computer Science - Volume 01
Efficient hierarchical inter picture coding for H.264/AVC baseline profile
PCS'09 Proceedings of the 27th conference on Picture Coding Symposium
Journal of Visual Communication and Image Representation
Motion vector refinement for high-performance transcoding
IEEE Transactions on Multimedia
A unified transcoding approach to fast forward and reverse playback of compressed video
IEEE Transactions on Consumer Electronics
The H.264/MPEG4 advanced video coding standard and its applications
IEEE Communications Magazine
Compression Efficiency and Delay Tradeoffs for Hierarchical B-Pictures and Pulsed-Quality Frames
IEEE Transactions on Image Processing
Overview of the Scalable Video Coding Extension of the H.264/AVC Standard
IEEE Transactions on Circuits and Systems for Video Technology
Efficient Prediction Structures for Multiview Video Coding
IEEE Transactions on Circuits and Systems for Video Technology
High Performance, Low Complexity Video Coding and the Emerging HEVC Standard
IEEE Transactions on Circuits and Systems for Video Technology
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Low-delay hierarchical prediction structure is currently adopted in various new video coding standards. The only hurdle of this structure is the need of motion estimation in distant reference frames. To maintain high coding efficiency, a large search range for motion estimation can improve the coding efficiency in distant reference pictures. Computational complexity will thus be increased dramatically. In this paper, a fast motion estimation scheme for a low-delay hierarchical P-frame structure is proposed. The proposed scheme adopts a motion vector composition strategy to expedite the motion estimation process for distant reference frames in the hierarchical P structure. In addition, a motion vector composition algorithm is tailor-made with the proposed hierarchical P coding scheme to further improve the coding efficiency. Simulation results show that the proposed scheme can deliver a remarkable complexity savings and coding efficiency improvement on coding a frame in low temporal layers of the hierarchical P structure.