| Paper: | IMDSP-P5.9 | ||
| Session: | Motion Estimation | ||
| Time: | Wednesday, May 19, 09:30 - 11:30 | ||
| Presentation: | Poster | ||
| Topic: | Image and Multidimensional Signal Processing: Image and Video Coding | ||
| Title: | A NEW CROSS DIAMOND SEARCH ALGORITHM FOR BLOCK MOTION ESTIMATION | ||
| Authors: | Hongjun Jia; Tsinghua University | ||
| Li Zhang; Tsinghua University | |||
| Abstract: | In block-matching motion estimation, the search pattern with different shape and size can impact the search performance very much. Based on the study of the search pattern and the motion vector distribution, a new cross-diamond search (NCDS) algorithm using the asymmetric diamond search pattern is proposed in this paper, in which two asymmetrical search patterns are employed instead of other popular square-shaped or diamond-shaped search patterns. Simulation results demonstrate that the proposed NCDS algorithm outperforms other well-known fast block matching algorithms greatly. And the performance is also better than the most recent cross diamond search (CDS) algorithm in terms of mean absolute distortion and the number of the search points. | ||
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