Forensic photography, which was systematically established in the late 19th century by Alphonse Bertillon of France,
has developed a lot for about 100 years. The development will be more accelerated with the development of high
technologies, in particular the digital technology. This paper reviews three studies to answer the question: Can the SLR
digital camera replace the traditional silver halide type ultraviolet photography and infrared photography?
1. Comparison of relative ultraviolet and infrared sensitivity of SLR digital camera to silver halide photography.
2. How much ultraviolet or infrared sensitivity is improved when removing the UV/IR cutoff filter built in the SLR
3. Comparison of relative sensitivity of CCD and CMOS for ultraviolet and infrared.
The test result showed that the SLR digital camera has a very low sensitivity for ultraviolet and infrared. The cause
was found to be the UV/IR cutoff filter mounted in front of the image sensor. Removing the UV/IR cutoff filter
significantly improved the sensitivity for ultraviolet and infrared. Particularly for infrared, the sensitivity of the SLR
digital camera was better than that of the silver halide film. This shows the possibility of replacing the silver halide type
ultraviolet photography and infrared photography with the SLR digital camera. Thus, the SLR digital camera seems to be
useful for forensic photography, which deals with a lot of ultraviolet and infrared photographs.
Basically, photography has the attributes of reason, which encompasses the scientific knowledge of optics, physics and
chemistry, and delicate sensibility of individuals. Ultimately, the photograph pursues “effective
communication.” Communication is “mental and psychosocial exchange mediated by material symbols, such as
language, gesture and picture,” and it has four compositions: “sender, receiver, message and channel.” Recently, a
change in the communication method is on the rise in the field of art and culture, including photography. Until now,
communication was mainly achieved by the form of messages unilaterally transferred from senders to receivers. But,
nowadays, an interactive method, in which the boundary of sender and receiver is obscure, is on the increase. Such new
communication method may be said to have arrived from the desire of art and culture societies, pursuing something new
and creative in the background of utilization of a variety of information media.
The multi-view screen we developed is also a communication tool capable of effective interaction using photos or
motion pictures. The viewer can see different images at different locations. It utilizes the basic lenticular characteristics,
which have been used in printing. Each motion picture is displayed on the screen without crosstalk. The multi-view
screen is different in many aspects from other display media, and is expected to be utilized in many fields, including
advertisement, display and education.