| Presentation | 2010-02-15 Simulation of Aged Vision Considering Age-Related Changes of Contrast Discrimination Sensitivity Katsunori OKAJIMA, Shuang XU, Kenji IWAMOTO, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We measured and formulated age-related changes of crystalline lens, pupil, color appearance and contrast discrimination sensitivity for simulating aged-vision precisely to young observers. Age-related changes of human lens and pupillary size were simulated as transformations of effective luminance of each pixel. We measured color appearance in elderly and young subjects quantitatively using an elemental color-scaling method and formulated transformation functions for deriving equivalent colors between elderly and young observers to simulate color vision characteristics of old people. In addition, we conducted an experiment to measure contrast discrimination sensitivity in elderly and young subjects. From the results, we formulated transformation functions for deriving spatial characteristics between both ages. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Crystalline Lens / Pupil / Color Appearance / Contrast Sensitivity / Spatial Frequency |
| Paper # | ITS2009-43,IE2009-137 |
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| Conference Information | |
| Committee | ITS |
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| Conference Date | 2010/2/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Intelligent Transport Systems Technology (ITS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Simulation of Aged Vision Considering Age-Related Changes of Contrast Discrimination Sensitivity |
| Sub Title (in English) | |
| Keyword(1) | Crystalline Lens |
| Keyword(2) | Pupil |
| Keyword(3) | Color Appearance |
| Keyword(4) | Contrast Sensitivity |
| Keyword(5) | Spatial Frequency |
| 1st Author's Name | Katsunori OKAJIMA |
| 1st Author's Affiliation | Research Institute of Environment and Information Sciences, Yokohama National University() |
| 2nd Author's Name | Shuang XU |
| 2nd Author's Affiliation | Graduate School of Environment and Information Sciences, Yokohama National University |
| 3rd Author's Name | Kenji IWAMOTO |
| 3rd Author's Affiliation | Department of Mechanical Engineering and Material Science, Faculty of Engineering, Yokohama National University |
| Date | 2010-02-15 |
| Paper # | ITS2009-43,IE2009-137 |
| Volume (vol) | vol.109 |
| Number (no) | 414 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |