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An efficient computation-constrained block-based motion estimation algorithm for low bit rate video coding (1998).
| Content Provider | CiteSeerX |
|---|---|
| Author | Gallant, Michael Côté, Guy Kossentini, Faouzi |
| Abstract | 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. |
| File Format | |
| Publisher Date | 1998-01-01 |
| Access Restriction | Open |
| Subject Keyword | Low Bit Rate Video Coding Low Bit Rate Video Motion Estimation Distortion Yield Good Tradeoff Reference Software Block-based Motion Vector Estimation Algorithm Structural Constraint Search Origin Efficient Computation Motion Field Rate-distortion Performance Reliable Predictor Search Process Subjective Quality Flexible Cost Measure Graceful Computational Degradation Capability Computational Cost Experimental Result Motion Estimation Algorithm Simultaneous Control Efficient Search Pattern |
| Content Type | Text |
