A Note on Unique Solution Conditions of the P3P Problem
Zhu Feng · Chinese Journal of Computers · 2003
The multi-solution phenomenon of the P3P problem limits its applications in practices, and the results of predecessors are not effective in directing us to dispose the control points and the camera. We use a new approach other than the predecessors’ to study the P3P problem, and find that when the three control points form an isosceles triangle, we can find some spatial regions, and when the camera appears in these spatial regions, we can get the real solution of the formed P3P problem uniquely. And the results we obtain are also very useful for disposing control points and the camera in the practical applications.