This paper proposes the person authentication scheme with the images of his or her face. In the scheme, the CCD camera picks up the images of the person's face casted by the lights from the various directions. The lights can be switched in a random order so fast that you cannot change the forged photographs simultaneously with the switches of the lights. This scheme is then highly secure and has a high cost performance. There are some appropriate applications of the scheme, such as the access control system of entering a room. The security and the efficiency of the scheme is checked by the performance of the false rejection rate and the false acceptance rate.