| Presentation | 2002/3/7 A System Assisting the Visually Impaired People to Understand Character Information in the Environment Hiroyasu HIRAIWA, Yoshinori TAKEUCHI, Tetsuya MATSUMOTO, Hiroaki KUDO, Yongmei LIU, Noboru OHNISHI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we propose an environment recognition system for the visually impaired people by using a note-PC and a small CCD camera. We have focused on character information because characters are one of important cues in scene recognition. The system captures an image by a camera connected to a note-PC. First, characters in the image are extracted by using features of a character, and those of character line such as similar aspect ratio and linear arrangement. Next, OCR (Optical Character Recognition) analyzes the extracted character regions and outputs recognized characters. We conducted experiments with 400 real images, we had satisfactory results the extraction rate of perfect character line is 67.9%. Although character lines of 25.7% were partially missing, these missings would be easily supplemented by human knowledge when charcter recognition was carried out. We conducted a field expriment on a subway station, and confirmed this system can provide useful information to a user. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Vision substitution / character extraction / CCD camera / Note PC / Mobility support |
| Paper # | TL2001-60 |
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| Committee | TL |
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| Conference Date | 2002/3/7(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 | Thought and Language (TL) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A System Assisting the Visually Impaired People to Understand Character Information in the Environment |
| Sub Title (in English) | |
| Keyword(1) | Vision substitution |
| Keyword(2) | character extraction |
| Keyword(3) | CCD camera |
| Keyword(4) | Note PC |
| Keyword(5) | Mobility support |
| 1st Author's Name | Hiroyasu HIRAIWA |
| 1st Author's Affiliation | Graduate School of Engineering, Nagoya Univ.() |
| 2nd Author's Name | Yoshinori TAKEUCHI |
| 2nd Author's Affiliation | Center for Inforeation Media Studies, Nagoya Univ. |
| 3rd Author's Name | Tetsuya MATSUMOTO |
| 3rd Author's Affiliation | Graduate School of Engineering, Nagoya Univ. |
| 4th Author's Name | Hiroaki KUDO |
| 4th Author's Affiliation | Center for Inforeation Media Studies, Nagoya Univ. |
| 5th Author's Name | Yongmei LIU |
| 5th Author's Affiliation | Institute of Physical and Chemical Research |
| 6th Author's Name | Noboru OHNISHI |
| 6th Author's Affiliation | Center for Inforeation Media Studies, Nagoya Univ.:Institute of Physical and Chemical Research |
| Date | 2002/3/7 |
| Paper # | TL2001-60 |
| Volume (vol) | vol.101 |
| Number (no) | 710 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |