a 3d coordinate estimation by using reformed two ir led markers and psd camera
We introduced a low-cost and compact motion capture system which enables to play motion games in Play Station 2[1]. The Single-PSD motion capture system that used the intensity light of a marker has a weak measurement at an intensity variation. It is so difficult to make markers having omni-direction equal intensity in Single-PSD. In this paper, we propose a new method that solves aforementioned problems. It can measure 3D coordination with the relation of the optical characteristics if the intensity of a pair of markers is same at forward direction. We made a system based on this proposed method and experimented for performance capability. As a result, we were able to make the motion capture system to the robust system for bad factors, such as variation intensity of markers, external light. The system is stable to obtain 3d positions and an adaptable motion games. The improved system is expected to be useful in animation, movies and games.
motion capture system motion games psd sensor 3d measurement