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Fast H.264/SVC inter-frame and inter-layer mode decisions based on motion activity
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Lu, X. and Martin, Graham R.. (2012) Fast H.264/SVC inter-frame and inter-layer mode decisions based on motion activity. Electronics Letters, Vol.48 (No.2). pp. 84-85. ISSN 0013-5194
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Official URL: http://dx.doi.org/10.1049/el.2011.3106
Abstract
In the SVC extension of H. 264, motion compensation of the enhancement layer is performed in both the same resolution layer and the corresponding lower layer, which results in greatly increased computational complexity. A fast inter-frame and inter-layer mode selection algorithm utilising the motion activity in the key frames of the video sequence is proposed. Statistics obtained empirically reveal that a macroblock with slow movement is more likely to be best matched by one in the same resolution layer. However, for a macroblock with fast movement, motion estimation between layers is required. This a priori knowledge forms the basis for the mode selection method proposed. Simulation results show that the algorithm can reduce the encoding time by up to 40%, with negligible degradation in rate distortion.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QA Mathematics > QA76 Electronic computers. Computer science. Computer software |
| Divisions: | Faculty of Science > Computer Science |
| Journal or Publication Title: | Electronics Letters |
| Publisher: | Institution of Engineering and Technology |
| ISSN: | 0013-5194 |
| Date: | 19 January 2012 |
| Volume: | Vol.48 |
| Number: | No.2 |
| Page Range: | pp. 84-85 |
| Identification Number: | 10.1049/el.2011.3106 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Restricted or Subscription Access |
| URI: | http://wrap.warwick.ac.uk/id/eprint/41922 |
Data sourced from Thomson Reuters' Web of Knowledge
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