Abstract
The existent 3-D modeling technique such as the stereoscopic vision recovers 3-D shape of part of a solid which can be observed commonly from the set cameras. This inevitably needs registration among recovered partial shapes in order to obtain an entire 3-D model of the solid For this purpose, strict camera calibration is indispensable, resulting in not very efficient modeling procedure. In this paper, a technique based on a simple camera calibration is proposed for recovering entire shape of a solid without registration by the application of the factorization. In the first place, multiple cameras are set around an object interested and the feature points observable from all the cameras recover their 3-D locations by the factorization. By employing the information on the orientations of the cameras observing the front part of the object, those feature points observable only from the frontal cameras recover their 3-D locations. In the same way, the feature points observable only from the cameras looking at the rear part of the object recover their 3-D positions by the employment of the orientations of the rear cameras. In this way, all the feature points on the object recover the 3-D positions, providing entire shape of the object. Experimental results show satisfactory performance of the proposed technique.
