| Presentation | 2004/2/13 Conic-Based Algorithm for Visual Line Estimation from One Image Haiyuan WU, Qian CHEN, Taro IIO, Toshikazu WADA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper describes a novel method to estimate visual line from a single monocular image. By assuming that the visual lines of the both eyes are parallel and the iris boundaries are circles, we propose a "two-circle" algorithm that can estimate the normal vector of the supporting plane of the iris boundaries, from which the direction of the visual line can be calculated. Most existing gaze estimation algorithms require eye corners and some heuristic knowledge about the structure of the eye as well as the iris contours. In contrast to the exiting methods, our one does not use those additional information. Another advantage of our algorithm is that a camera with an unknown focal length can be used without assuming the orthographical projection. This is a very useful feature because it allows one to use a zoom lens and to change the zooming factor whenever he or she likes. It also gives one more freedom of the camera setting because keeping the camera far from the eyes is not necessary in our method. The extensive experiments over simulated images and real images demonstrate the robustness and the effectiveness of our method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Visual Line Estimation / Conic-Based / Single Monocular Image / Unknown Focal Length |
| Paper # | TL2003-58,PRMU2003-244 |
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| Conference Information | |
| Committee | PRMU |
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| Conference Date | 2004/2/13(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Pattern Recognition and Media Understanding (PRMU) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Conic-Based Algorithm for Visual Line Estimation from One Image |
| Sub Title (in English) | |
| Keyword(1) | Visual Line Estimation |
| Keyword(2) | Conic-Based |
| Keyword(3) | Single Monocular Image |
| Keyword(4) | Unknown Focal Length |
| 1st Author's Name | Haiyuan WU |
| 1st Author's Affiliation | Faculty of Systems Engineering, Wakayama University() |
| 2nd Author's Name | Qian CHEN |
| 2nd Author's Affiliation | Faculty of Systems Engineering, Wakayama University |
| 3rd Author's Name | Taro IIO |
| 3rd Author's Affiliation | Faculty of Systems Engineering, Wakayama University |
| 4th Author's Name | Toshikazu WADA |
| 4th Author's Affiliation | Faculty of Systems Engineering, Wakayama University |
| Date | 2004/2/13 |
| Paper # | TL2003-58,PRMU2003-244 |
| Volume (vol) | vol.103 |
| Number (no) | 659 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |