Measurement of three-dimensional information of the face and its application to facial image examination

A facial image captured by a security camera can be an important clue in criminal investigations. However, there is a wide variety of face poses and lighting conditions, which has a significant impact on facial appearance on the image. As a result, in case of comparison to a pre-registered facial image, it is difficult to determine whether each subject is the same. This paper proposes to register 3D information of the face instead of the ordinal 2D facial image in advance. Then, it is possible to reproduce the facial image under the same conditions as the facial image in a security camera, so facial examination becomes direct comparison, and in consequence, more rapid and more reliable. In this paper, we will introduce NEC's high-speed and high-precision face 3D measurement technology and its application to facial image comparison and facial examination. © 2021 NEC Mediaproducts. All rights reserved.