Visual cryptography for face privacy

Arun Ross; Asem A. Othman

doi:10.1117/12.852280

14 April 2010 Visual cryptography for face privacy

Arun Ross, Asem A. Othman

Proceedings Volume 7667, Biometric Technology for Human Identification VII; 76670B (2010) https://doi.org/10.1117/12.852280
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

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.

Citation Download Citation

Arun Ross and Asem A. Othman "Visual cryptography for face privacy", Proc. SPIE 7667, Biometric Technology for Human Identification VII, 76670B (14 April 2010); https://doi.org/10.1117/12.852280

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