Complexity management for video encoders
Proceedings of the tenth ACM international conference on Multimedia
Performance of H.26L Video Encoder on General-Purpose Processor
Journal of VLSI Signal Processing Systems
Expert Systems with Applications: An International Journal
FPGA architecture of the LDPS Motion Estimation for H.264/AVC Video Coding
Journal of Signal Processing Systems
Information Sciences: an International Journal
| Hi-index | 0.02 |
We present an efficient computation constrained block-based motion vector estimation algorithm for low bit rate video coding that yields good tradeoffs between motion estimation distortion and number of computations. A reliable predictor determines the search origin, localizing the search process. An efficient search pattern exploits structural constraints within the motion field. A flexible cost measure used to terminate the search allows simultaneous control of the motion estimation distortion and the computational cost. Experimental results demonstrate the viability of the proposed algorithm in low bit rate video coding applications. The resulting low bit rate video encoder yields essentially the same levels of rate-distortion performance and subjective quality achieved by the UBC H.263+ video coding reference software. However, the proposed motion estimation algorithm provides substantially higher encoding speed as well as graceful computational degradation capabilities