A system for automatic face obscuration for privacy purposes

Authors:
Rita Cucchiara;Andrea Prati;Roberto Vezzani
Affiliations:
Dipartimento di Ingegneria dell'Informazione, University of Modena and Reggio Emilia, Via Vignolese 905, 41100 Modena, Italy;Dipartimento di Scienze e Metodi dell'Ingegneria, University of Modena and Reggio Emilia, Via Allegri 13, 42100 Reggio Emilia, Italy;Dipartimento di Ingegneria dell'Informazione, University of Modena and Reggio Emilia, Via Vignolese 905, 41100 Modena, Italy
Venue:
Pattern Recognition Letters
Year:
2006

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Abstract

This work proposes a method for automatic face obscuration capable of protecting people's identity. Since face detection heavily benefits from the possibility to exploit tracking, multi-camera people tracking has been integrated with a face detector based on colour clustering and Hough transform. Moreover, the multiple viewpoints provided by multiple cameras are exploited in order to always obtain a good-quality image of the face. The identity of people in different views is kept consistent by means of a geometrical, uncalibrated approach based on homographies. Experimental results show the accuracy of the proposed approach.