Visual security evaluation for video encryption

Authors:
Lingling Tong;Feng Dai;Yongdong Zhang;Jintao Li
Affiliations:
Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China;Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China;Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China;Institute of Computing Technology, Chinese Academy of Sciences, Beijing, China
Venue:
Proceedings of the international conference on Multimedia
Year:
2010

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Abstract

Video encryption plays an important role in data security guarantee, which is increasingly important with the development of multimedia technology. A great deal of effort has been made in recent years to develop video encryption methods. However, few studies focus on visual security evaluation, which has significant impact in measuring the effectiveness of these methods. In this paper, a new metric for video encryption is proposed, which evaluates visual security based on color and edge features of original and cipher-videos. The metric is easy to be incorporated into video encryption system for visual security based encryption decision. In addition, subjective tests for visual security assessment have been fully carried out. Experiments show that the proposed metric had better correlation with subjective results than others.