Akifumi Ikari

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A number of methods have been proposed to separate a color signal into its components: illumination spectral power distribution and surface spectral reflectance. Most of these methods usually use a minimization technique from solely a single color signal, which works in theoretical framework but is not effective for real data. The reason is it lacks the(More)
In connection with efforts to preserve objects of cultural heritage, we are attempting to recreate the real color of a wall painting in the ancient Ozuka tumulus. The difficulties are that there is no sunlight in the tumulus, and we are not allowed to use torchlight because of preservation considerations. So to observe a wall painting under these(More)
Auguste Rodin is the most celebrated sculptor of the 19th century. His works, such as The Gates of Hell, The Thinker, and The Burghers of Calais, are famous worldwide. To our knowledge, no art historians have analyzed three-dimensional data of Rodin's work. This paper describes our project to fill this need by digitally archiving the bronze statue, The(More)
In Japan as a low prevalence country in tuberculosis, national computerized tuberculosis surveillance system in Japan has started since in 1987. The volume of information has much increased in comparison with previous annual reports, and its practical use to tuberculosis control programme is more expected. In this symposium, I presented two analyses,(More)
A survey was done on the conditions of the tuberculosis surveillance system used for extraordinary examination in high tuberculosis prevalence areas in Aichi Prefecture during the period from 1981 to 1989. The results were as follows: 1) A total of 25 health centers provided information to 456 cases in specific groups known as "danger groups" and 227 cases(More)
In computer graphics and virtual reality, multi-spectral and panoramic images are needed. To get a panoramic multi-spectral images, the approach to use a filter transmitting spectral bands are spatially varying is proposed. A filter is attached to an 8-bit black/white camera. Then take images ( there is no parallax).Each scene points are taken many times in(More)
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