A Curve Fitting Based Virtual Camera Centers Generation Approach of Arc Cameras Array

A flexible virtual camera centers calculation method is proposed. The convergent video sequences which are captured by the arc video camera arrays are more approximate to HVS (Human Visual System), so as to diminish the viewing discomfort. But because of the manual setting of cameras, the orientation errors of cameras are inevitable. Thus it is necessary to conduct the cameras’ orientation rectification. And the generation of virtual camera centers is an important part of rectification. In our proposal, the virtual camera centers generation method can give out the virtual baselines in various baseline distances adaptively without initial setting of convergent angles. The virtual camera centers are generated in an LMS (least mean square) manner. Thus it is more flexible for different kinds of cameras’ orientation setting. And our proposal also refers to the generation of homography between old camera plane and virtual camera plane. Experiments show that the delta vector between two sets of camera centers can approach the minimum norm until now.