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http://dx.doi.org/10.5392/JKCA.2010.10.7.040

Appropriate Digital Camera System for Digital Ultraviolet Photography  

Lee, Young-Kyu (중앙대학교 첨단영상대학원 영상학과)
Har, Dong-Hwan (중앙대학교 첨단영상대학원 영상학과)
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Abstract
Reflected-Ultraviolet photography is applied to the evidence of crime, Archaeology, and Dermatology. In the past, Ultraviolet photography was done with standard black-and-white film. Because emulsion of film is more sensitive to near UV light than CCD(Charge Coupled Device) or CMOS(Complementary Metal-Oxide-Semiconductor)of digital camera. In this research, we purpose to improve qulity of ultraviolet photographs and to find out the best alternative digital camera by utilizing a cunsumer digital camera. To achieve theses, we removed IR cutoff filter from digital camera. And by using modified UV pass filter, we verified the increase of image resolution of digital ultraviolet photographs. Also, we analyze reproducibility of digital ultraviolet photographs according to type, size, pixel of image sensor. Furthermore, this research resulted in the development of an practical digital camera system by utilizing a cunsumer digital camera. Eventually, it will contribute to practical use in the various field of digital ultraviolet photographs
Keywords
Digital Ultraviolet Photography; IR Cutoff Filter; UV Pass Filter; Digital Camera; Invisible Photography;
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