The acquisition of profile data and the production of CAD models are key elements in the style design based on a master model. So the present studies aim to generate high-quality CAD models from high-density measured point data on a master model having character areas. This report deals with a new method to measure such a master model and a fitting method to generate free-form surfaces onto the high-density measured point data. A master model is measured with a non-contact 3-D digitizing system. A non-uniform cubic B-spline curve fits onto the measured point data on a measurement line. A non-uniform knot vector is obtained in the “equivalent curvature area dividing method.” Coons patches of C² continuity are generated from the fitted B-spline curve as a boundary curve of patches. Twist vectors are calculated in the Adini method which utilizes adjacent patches. In the experiments, a high-accuracy CAD model fitted onto the measured point data on a master model. To get a high-quality CAD model, patches should be small in the character areas, so a new method is also proposed to extract character areas in the high-density measuring method.