Bilateral asymmetry of viewpoint dependence in face recognition from the viewpoint of “virtual view”
✍ Scribed by Miyuki Kamachi; Takashi Kato; Shigeru Akamatsu
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 282 KB
- Volume
- 83
- Category
- Article
- ISSN
- 1042-0967
No coin nor oath required. For personal study only.
✦ Synopsis
As an experiment of face recognition, subjects of the experiments perform a samedifferent judging task based on two pictures of a face shown almost continuously. The head pictures of the model for face judgment are digitized by a 3D scanner and only light and dark (black and white) images are used, excluding all texture information. In order to investigate viewpoint dependence in face recognition, five pictures of the same face are used as stimuli 90° profile from right and left, 45°o blique view from right, left, and front view. But to exclude the effects of asymmetry of the original face, the reversed left pictures of the 45° oblique and the 90° views are used as the right views. Past studies almost all indicated that the rate of recognition of the face depends on the viewpoint at the time of learning.
It is assumed the recognition rate of the oblique view of the face is better than the other viewpoints. In the learning of oblique face images, it is suggested that the rightleft symmetry view (virtual view) or the mirror image of the learning-time image are regenerated and used in recognition. In this experiment, the bilateral asymmetry of the viewpoint is made clear: if the left 45° oblique view of the image is learned, a generated rightleft symmetrical view is used more efficiently than 45° right oblique learning.