Free viewpoint video system(FVVS) has been intended to use widely in many situations. However FVVS faces some problems in 1. Image quality, 2. Computational cos and 3. Simplicity of system. To solve these problems, we study Shape from silhouette method and calibration. We aim to be the system as public can easily use our system and generate FVVS, so we develop a method without a lot of equipment. This presentation shows a method using automated system of calibration to improve simplicity of system. In the future we will be in practice about 3D reconstruction using Shape from silhouette method and FVVS.