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Proceedings Paper

Visual cryptography for face privacy
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Paper Abstract

We discuss the problem of preserving the privacy of a digital face image stored in a central database. In the proposed scheme, a private face image is dithered into two host face images such that it can be revealed only when both host images are simultaneously available; at the same time, the individual host images do not reveal the identity of the original image. In order to accomplish this, we appeal to the field of Visual Cryptography. Experimental results confirm the following: (a) the possibility of hiding a private face image in two unrelated host face images; (b) the successful matching of face images that are reconstructed by superimposing the host images; and (c) the inability of the host images, known as sheets, to reveal the identity of the secret face image.

Paper Details

Date Published: 14 April 2010
PDF: 13 pages
Proc. SPIE 7667, Biometric Technology for Human Identification VII, 76670B (14 April 2010); doi: 10.1117/12.852280
Show Author Affiliations
Arun Ross, West Virginia Univ. (United States)
Asem A. Othman, West Virginia Univ. (United States)

Published in SPIE Proceedings Vol. 7667:
Biometric Technology for Human Identification VII
B. V. K. Vijaya Kumar; Salil Prabhakar; Arun A. Ross, Editor(s)

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