| 从一维透视投影光流场恢复二维刚体运动和形状 |
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| 引用本文： | 郭航,储珺,高满屯,陈国定.从一维透视投影光流场恢复二维刚体运动和形状[J].机械科学与技术(西安),2004,23(9):1107-1109. |
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| 作者姓名： | 郭航 储珺 高满屯 陈国定 |
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| 作者单位： | [1]南昌大学，南昌330029 [2]南昌航空工业学院，南昌330034 [3]西北工业大学，西安710072 |
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| 基金项目： | 航空基础科学基金项目 ( 0 3I5 3 0 62 )资助 |
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| 摘 要： | 研究从一维透视投影光流场恢复二维刚体运动和结构。证明利用一维透视投影光流场中最少 5个光流点可以完全确定刚体的二维角速度和角加速度 ,一般情况下有 2个解。利用一维透视投影光流场只能确定含一个未知比例因子的刚体二维平移速度、平移加速度和二维刚体的结构 ,因此可完全确定二维刚体的形状
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| 关 键 词： | 透视投影 光流场 运动 结构 视觉运动分析 |
| 文章编号： | 1003-8728(2004)09-1107-03 |
Recovery of 2D Rigid Motion and Structure from 1D Optical Flow under Perspective Projection |
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| GUO Hang,CHU Jun ,GAO Man-tun ,CHEN Guo-ding.Recovery of 2D Rigid Motion and Structure from 1D Optical Flow under Perspective Projection[J].Mechanical Science and Technology,2004,23(9):1107-1109. |
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| Authors: | GUO Hang CHU Jun GAO Man-tun CHEN Guo-ding |
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| Affiliation: | GUO Hang1,CHU Jun 2,3,GAO Man-tun 3,CHEN Guo-ding 3 |
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| Abstract: | In this paper, we studied the problem of the recov er y of the two-dimensional rigid motion and structure from a one-dimensional opt ical flow field under perspective projection. The geometric model and mathematic model of a moving rigid object are set up. It is proved that the two-dimension al rotation parameters can be determined by using at least five optical flow po ints. In general, there are two groups of rotation parameters. The translation m otion and the structure parameters of the two-dimensional rigid object with a s cale factor are obtained. Its two-dimensional shape can be determined completel y. A computing example is given. |
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| Keywords: | Perspective projection Optical flow Motion Struc ture Visual motion analysis |
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