| Title |
Efficient Technique of Motion Vector Re-estimation in Transcoding |
| Authors |
한두진 ; 박강서 ; 유희준 ; 김봉곤 ; 박상희 |
| Keywords |
Transcoding ; Motion Vector Re-estimation ; Taylor Series Expansion |
| Abstract |
A novel motion vector re-estimation technique for transcoding into lower spatial resolution is proposed. This technique is based on the fact that the block matching error is proportional to the complexity of the reference block with Taylor series expansion. It is shown that the motion vectors re-estimated by the proposed method are closer to optimal ones and offer better quality than those of previous techniques. |