視覚特性による画像評価 : 蛍光灯の違いとフィルムベースの違いによる検出能

概要

論文の詳細を見る
For the light source of a viewing box, three kinds of fluorescent lamps were used, and when the film base was made into blue and clear bases, the detectability could be determined. It's a fixed expression, a difference could be seen in the detectability according to the combination of the kinds of fluorescent lamps and film bases used. As regards the results in the discrimination threshold for minimum density, in the clear base, the daylight color was best, but in the blue base, the daylight color was the worst. Regarding the luminance discrimination threshold, the results with the three-narrow band natural color fluorescent lamp and the daylight color fluorescent lamp were good, but in the blue base and at a luminarce of less than 500 cd/m^2, the white color lamp performed best, and at more than 500 cd/m^2, the three-narrow band natural color fluorescent lamp was good. As for the contrast in the visual assessment during clinical assessments, in the clesr base, the three-narrow band natural color fluorescent lamp, and in the biue base, the white color fluorescent lamp were good. Moreover, perhaps not really necessary the color temperature of the combination having good detectability was 5000〜6000 K.
社団法人日本放射線技術学会の論文
1995-01-01