Title :
Preventing unauthorized copying of displayed information by utilizing differences in spectral sensitivity between humans and imaging devices
Author :
Yamada, Tomoaki ; Gohshi, Seiichi ; Echizen, Isao
Author_Institution :
Univ. for Adv. Studies, Tokyo, Japan
Abstract :
A method is described for preventing unauthorized copying of information shown on a display. It utilizes the difference in spectral sensitivity between humans and imaging devices. A near-infrared light source, which has no effect on human vision, is installed in front of an existing display to corrupt the content of photographs taken of the display. Testing using a prototype implementation demonstrated that this method effectively prevents the unauthorized copying of displayed information. In addition to preventing the disclosure of confidential and personal information through the unauthorized photographing of displays, the proposed method has broad application to the unauthorized photographing of works of art, factory equipment, and other objects subject to photographic restrictions.
Keywords :
copyright; display devices; image watermarking; art; displayed information; factory equipment; humans; imaging devices; near-infrared light source; photographic restrictions; prototype implementation; spectral sensitivity; unauthorized copying; unauthorized displayed information copying; Digital cameras; Humans; Information filtering; Light emitting diodes; Noise; Sensitivity; Analog hole problem; Information leakage; Infrared; Liquid crystal display; Re-recording prevention;
Conference_Titel :
Information Forensics and Security (WIFS), 2012 IEEE International Workshop on
Conference_Location :
Tenerife
Print_ISBN :
978-1-4673-2285-0
Electronic_ISBN :
978-1-4673-2286-7
DOI :
10.1109/WIFS.2012.6412640