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局部刚体运动的非刚性结构Non-Rigid Structure from Locally-Rigid Motion |
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| 课程网址: | http://videolectures.net/cvpr2010_taylor_nrsl/ |
| 主讲教师: | Jonathan Taylor |
| 开课单位: | 微软公司 |
| 开课时间: | 2010-07-19 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | We introduce locally-rigid motion, a general framework for solving the M-point, N-view structure-from-motion problem for unknown bodies deforming under orthography. The key idea is to first solve many local 3-point, N-view rigid problems independently, providing a “soup” of specific, plausibly rigid, 3D triangles. The main advantage here is that the extraction of 3D triangles requires only very weak assumptions: (1) deformations can be locally approximated by near-rigid motion of three points (i.e., stretching not dominant) and (2) local motions involve some generic rotation in depth. Triangles from this soup are then grouped into bodies, and their depth flips and instantaneous relative depths are determined. Results on several sequences, both our own and from related work, suggest these conditions apply in diverse settings—including very challenging ones (e.g., multiple deforming bodies). Our starting point is a novel linear solution to 3-point structure from motion, a problem for which no general algorithms currently exist. |
| 关 键 词: | 局部刚性运动; 旋转深度; 变形体 |
| 课程来源: | 视频讲座网 |
| 最后编审: | 2020-04-13：chenxin |
| 阅读次数: | 110 |