| Presentation | 2022-03-09 Development of walking assistance system for visually impaired people using geomagnetic fingerprint and braille block map Ryosuke Nitta, Koichi Kuzume, Haruko Masuda, Tomonari Masuzaki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, there are more than 300,000 visually impaired people living in Japan, including those with low vision. To construct a barrier-free social environment in which they can walk safely is a very important issue. The possession rate of smartphones for the visually impaired is increasing year by year, and it is becoming possible to support walking outdoors by using the GPS and voice function built into the smartphone. However, it was difficult to estimate position accurately in station premises and underground malls by GPS due to radio interference. So far, we are currently developing an indoor walking support system for the visually impaired using a geomagnetic map limited to the area nearby the braille blocks. To achieve real-time navigation, we developed a system that applied Dynamic Time Warping to an estimation of the self-position by using user steps. And then, we also evaluated whether it could be utilized as a navigation system. As a result, we confirmed that our system could perform navigation within an error of 1.2 m. Furthermore, we showed that a high-definition geomagnetic map could be easily created from the geomagnetism measured while walking with a stride that matches the dimensions of a braille block sheet. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | visually impaired / geomagnetic map / walking characteristics / indoor navigation / self-location estimation |
| Paper # | WIT2021-53 |
| Date of Issue | 2022-03-01 (WIT) |
| Conference Information | |
| Committee | WIT / IPSJ-AAC |
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| Conference Date | 2022/3/8(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Shinji Sakou(Nagoya Inst. of Tech.) |
| Vice Chair | Tomohiro Amemiya(Univ. of Tokyo) |
| Secretary | Tomohiro Amemiya(Saitama Industrial Tech. Center) / (Teikyo Univ.) |
| Assistant | Minako Hosono(AIST) / Aki Sugano(Nagoya Univ.) / Tomoyasu Komori(NHK) |
| Paper Information | |
| Registration To | Technical Committee on Well-being Information Technology / Special Interest Group on Assistive & Accessible Computin |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Development of walking assistance system for visually impaired people using geomagnetic fingerprint and braille block map |
| Sub Title (in English) | |
| Keyword(1) | visually impaired |
| Keyword(2) | geomagnetic map |
| Keyword(3) | walking characteristics |
| Keyword(4) | indoor navigation |
| Keyword(5) | self-location estimation |
| 1st Author's Name | Ryosuke Nitta |
| 1st Author's Affiliation | NIT,Yuge College(Yuge College) |
| 2nd Author's Name | Koichi Kuzume |
| 2nd Author's Affiliation | NIT,Yuge College(Yuge College) |
| 3rd Author's Name | Haruko Masuda |
| 3rd Author's Affiliation | NIT,Yuge College(Yuge College) |
| 4th Author's Name | Tomonari Masuzaki |
| 4th Author's Affiliation | NIT,Yuge College(Yuge College) |
| Date | 2022-03-09 |
| Paper # | WIT2021-53 |
| Volume (vol) | vol.121 |
| Number (no) | WIT-418 |
| Page | pp.pp.59-64(WIT), |
| #Pages | 6 |
| Date of Issue | 2022-03-01 (WIT) |