The aim of this study is to present researches made in a 3D scanner conception of human foot. All foot measurements necessary to design an orthopedic shoe must be done. And particularly the first step of foot reconstruction is treated in order to allow us to find the surface points cloud. The cloud number points is increased step by step thanks to a combination of several methods. The first method for the preliminary points extraction is explained. The relative length, height and width of the object are obtained in order to construct the parallelepiped including the foot. Each image are projected in the volume for the different planes of the views in order to eliminate the exterior points. From the volume of all these points only the points of the surface are retained. The first volume surface is obtained. The points of the cloud should be located on or out surface foot. This first reconstruction must be ameliorated by a second method : an active triangulation. We will use the tools of matching points of stereovision in the various images profiles.