Ji Hui, Fermuller Cornelia
Center for Automation Research, University of Maryland, College Park, MD 20742-3275, USA.
IEEE Trans Pattern Anal Mach Intell. 2006 Jun;28(6):1018-23. doi: 10.1109/TPAMI.2006.109.
We propose to combine the information from multiple motion fields by enforcing a constraint on the surface normals (3D shape) of the scene in view. The fact that the shape vectors in the different views are related only by rotation can be formulated as a rank = 3 constraint. This constraint is implemented in an algorithm which solves 3D motion and structure estimation as a practical constrained minimization. Experiments demonstrate its usefulness as a tool in structure from motion providing very accurate estimates of 3D motion.
我们建议通过对视野中场景的表面法线（三维形状）施加约束来合并来自多个运动场的信息。不同视图中的形状向量仅通过旋转相关这一事实可以被表述为秩 = 3 约束。此约束在一种算法中得以实现，该算法将三维运动和结构估计作为实际的约束最小化问题来求解。实验证明了它作为一种从运动中获取结构的工具的有用性，能够提供非常精确的三维运动估计。
