Name
Abstract | ||
|---|---|---|
To improve coding performance, the new video compression standard H.264 employs seven variable block sizes for one Macro Block (MB) to conduct motion estimation and compensation. MPEG-2 only has one size 16x16. This paper presents a novel fast variable block size selection method for an inter-MB in a video transcoder from MPEG-2 to H.264 with downscaling by a factor two in each dimension based on the MB motion information. Without conducting motion re-estimation, an optimal block size is decided. Experiment results show that this method saves the transcoder complexity dramatically with little compression performance degradation. |
Year | DOI | Venue |
|---|---|---|
2008 | 10.1109/ICME.2008.4607400 | 2008 IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXPO, VOLS 1-4 |
Keywords | Field | DocType |
video transcoding,merging,motion estimation,motion compensation,transform coding,video compression,encoding,transcoding | Block size,Computer vision,Transcoding,Computer science,Motion compensation,Transform coding,Coding (social sciences),Artificial intelligence,Motion estimation,Data compression,Encoding (memory) | Conference |
Citations | PageRank | References |
0 | 0.34 | 5 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Xiangwen Wang | 1 | 72 | 11.90 |
| Jun Sun | 2 | 1060 | 79.09 |
| Rong Xie | 3 | 59 | 34.58 |
| Shibao Zheng | 4 | 214 | 30.64 |
| Yu Song | 5 | 356 | 52.74 |