| Presentation | 2001/11/11 A Model of Dual-Accommodative Functions in Human Vision's Accommodation Mechanism Toshikazu Matsui, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The accommodation mechanism in human vision could be regarded as having two kinds of functions(dual-accommodation mechanism) : one keeps the retinal image to be in-focus in response to the change in depth of object images(Accommodation I) ; the other makes it out of focus depending on the object images'property at a constant depth (Accommodation II). So far, both two functions have never been modeled. This report proposes a dual-accommodation model which can cope with both two functions. The proposed model is applied to object images of square-waves with unknown depths. Consequently, the following performances are clarified : (1)the two functions of the model work well and stably ; (2)the depths can be estimated regardless of the existence of textures ; (3)the amount of accommodation error caused by the square-wave images is small and almost constant in low spatial frequencies in the same way as experimental results ; (4)there exists an accommodation strategy of keeping the spatial gradient of edge to be constant in the brain. These results suggest that the proposed model is effective in reproducing the dual-accommodative functions in human vision. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Dual-accommodation / Double optimization / Depth / Accommodation error / Focus / Accommodation strategy |
| Paper # | HIP2001-73 |
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| Conference Information | |
| Committee | HIP |
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| Conference Date | 2001/11/11(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Human Information Processing (HIP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Model of Dual-Accommodative Functions in Human Vision's Accommodation Mechanism |
| Sub Title (in English) | |
| Keyword(1) | Dual-accommodation |
| Keyword(2) | Double optimization |
| Keyword(3) | Depth |
| Keyword(4) | Accommodation error |
| Keyword(5) | Focus |
| Keyword(6) | Accommodation strategy |
| 1st Author's Name | Toshikazu Matsui |
| 1st Author's Affiliation | Graduate School of Engineering, Gunma University() |
| Date | 2001/11/11 |
| Paper # | HIP2001-73 |
| Volume (vol) | vol.101 |
| Number (no) | 513 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |