Transformation of Optical Flow by Camera Rotation
Transformation of Optical Flow by Camera Rotation
复制标题
通过相机旋转来变换光流
DOI：
10.1109/34.3879
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发表时间：
1988
期刊：
影响因子：
--
通讯作者：
K. Kanatani
中科院分区：
文献类型：
--
作者：
K. Kanatani
讨论了相机旋转对运动平面产生的光流描述的影响。通过分析无穷小生成器并不可约地减少 3-D 旋转群 SO(3) 的诱导表示，明确给出了参数的变换律。参数空间被分解为不变子空间，并且平面运动产生的光流相应地被分解为两部分，由此推导出不变基。提出了一个程序来测试两个光流的等效性并重建相机旋转。讨论了与 3-D 恢复解析表达式的关系。 >
The effect of camera rotation on the description of optical flow generated by a planar surface in motion is treated. A transformation law for the parameters is given explicitly by analyzing infinitesimal generators and irreducibly reducing the induced representation of the 3-D rotation group SO(3). The parameter space is decomposed into invariant subspaces, and the optical flow resulting from planar surface motion is accordingly decomposed into two parts, from which an invariant basis is deduced. A procedure is presented to test the equivalence of two optical flows and to reconstruct the camera rotation. The relationship with the analytical expressions for 3-D recovery is discussed. >