| Presentation | 2002/1/11 Region Extraction and Length Estimation of Crosswalk with An Image Suguru Kitawaki, Haiyuan Wu, Tadayoshi Shioyama, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | For the purpose of assisting for the blind to cross a crosswalk alone in safety, this paper presents a method with image information for estimating the length of a crosswalk under the assumption that the blind is in front of the crosswalk. First, we obtain three-dimensional vectors of a crosswalk outline under the perspective projection. Then, we have the direction of the road surface normal on the basis of vector analysis, and estimate the distance between the blind and an endline of a crosswalk. This paper furthermore presents a method for extracting the region of a crosswalk as a pre-processing of region detection. Extensive experiments show the effectiveness of the proposed method for real images of crosswalks. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Perspective projection / The blind / Image information / Length estimation of crosswalk / Region extraction of crosswalk |
| Paper # | 2001-PRMU-213 |
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| Conference Information | |
| Committee | PRMU |
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| Conference Date | 2002/1/11(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Pattern Recognition and Media Understanding (PRMU) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Region Extraction and Length Estimation of Crosswalk with An Image |
| Sub Title (in English) | |
| Keyword(1) | Perspective projection |
| Keyword(2) | The blind |
| Keyword(3) | Image information |
| Keyword(4) | Length estimation of crosswalk |
| Keyword(5) | Region extraction of crosswalk |
| 1st Author's Name | Suguru Kitawaki |
| 1st Author's Affiliation | Graduate School of Science and Technology Kyoto Institute of Technology() |
| 2nd Author's Name | Haiyuan Wu |
| 2nd Author's Affiliation | Graduate School of Science and Technology Kyoto Institute of Technology |
| 3rd Author's Name | Tadayoshi Shioyama |
| 3rd Author's Affiliation | Graduate School of Science and Technology Kyoto Institute of Technology |
| Date | 2002/1/11 |
| Paper # | 2001-PRMU-213 |
| Volume (vol) | vol.101 |
| Number (no) | 569 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |