Bulletin of the Society of Photography and Imaging of Japan
Online ISSN : 2188-9937
27 巻, 1 号
選択された号の論文の2件中1~2を表示しています
  • Ken’ich Kuge, Kazumitsu Morimoto
    2017 年 27 巻 1 号 p. 1-6
    発行日: 2017/06/30
    公開日: 2022/09/24
    ジャーナル オープンアクセス
    Sensitization methods including chemical sensitization and halogen acceptors (HA) for ultra-fine-grain (UFG) emulsions with dif- ferent grain sizes and crystal habits were investigated and the desensitizing factors peculiar to UFG emulsions were analyzed. Sul- fur-gold sensitization or HA alone gave a small sensitivity increase but the combination of both gave the maximum effect; reduction sensitization alone had a large effect but the combination with HA decreased the sensitivity from this level. Rehalogenation was suggested to be an important factor in the desensitization of UFG emulsions. Sensitization effects with exposure intensities and crystal habits were qualitatively similar between low and high intensities, and {111} and {100} faces, but the former cases showed larger effects than the latter cases. The sensitivity after sensitizing treatments was proportional to the higher power than the third one of grain size. The sensitivity of the unsensitized UFG emulsion was also in this proportional relationship, but was much lower than that of the sensitized emulsions.
  • Kaoru Kiyomitsu, Akihiro Kakinuma, Hiroshi Takahashi, Naohiro Kamijo, ...
    2017 年 27 巻 1 号 p. 7-12
    発行日: 2017/06/30
    公開日: 2022/09/24
    ジャーナル オープンアクセス
    In this paper, we propose to evaluate the edema of a leg by volume measurement using Microsoft Kinect. The volume is calculated from a measured point cloud by our improved voxelization technique. Additionally, the depth camera of Microsoft Kinect is feasible for use in home care systems due to its very low cost compared with other depth cameras. In an experiment, we measured the leg volumes of three healthy subjects in the morning and evening for three days. For each subject, the mean volume values were obtained from five measured values. The increase of volume was confirmed in all experiments from morning to evening. These experimental results meet the physiological expectation. Because the changes in leg volumes are greater for a patient with serious edema than for a healthy person, we conclude that the proposed system can appropriately evaluate leg edema.
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