| Paper Abstract and Keywords |
| Presentation |
2007-03-15 16:15
Accurate change detection in streetscapes using car-mounted omni-directional images
Junji Sato, Tomokazu Takahashi, Ichiro Ide, Hiroshi Murase (Nagoya Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
As a part of ITS technology, techniques that realize quick update of street map are required. We have previously proposed a method for detecting changes in streetscapes from images captured by car-mounted
omni-directional cameras. It comprises two stages; construction of a street image map that relates accurately a map position to a street image taken from the position at different times, and detection of changes in streetscapes from the street image map. To collect images at various times and routes, many cars equipped with a low-cost camera and a general GPS device run freely. In the second stage (detection of changes), a method that we have previously developed detects changes in streetscapes using differences of pixel values between images captured at the same position. This method, however, had many false detections, because of illumination changes. Focusing on the fact that streetscapes vary depending on the time of a day, we propose a new method taht uses correlation between image change and time change. Experiments with 44 data items collected during one year, demonstrate the effectiveness of the new method. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
omni-directional image / eigenspace method / DP matching / / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 106, no. 605, PRMU2006-250, pp. 91-96, March 2007. |
| Paper # |
PRMU2006-250 |
| Date of Issue |
2007-03-08 (PRMU) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
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| Conference Information |
| Committee |
PRMU |
| Conference Date |
2007-03-15 - 2007-03-16 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
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| Topics (in Japanese) |
(See Japanese page) |
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| Paper Information |
| Registration To |
PRMU |
| Conference Code |
2007-03-PRMU |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Accurate change detection in streetscapes using car-mounted omni-directional images |
| Sub Title (in English) |
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| Keyword(1) |
omni-directional image |
| Keyword(2) |
eigenspace method |
| Keyword(3) |
DP matching |
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| 1st Author's Name |
Junji Sato |
| 1st Author's Affiliation |
Nagoya University (Nagoya Univ.) |
| 2nd Author's Name |
Tomokazu Takahashi |
| 2nd Author's Affiliation |
Nagoya University (Nagoya Univ.) |
| 3rd Author's Name |
Ichiro Ide |
| 3rd Author's Affiliation |
Nagoya University (Nagoya Univ.) |
| 4th Author's Name |
Hiroshi Murase |
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Nagoya University (Nagoya Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2007-03-15 16:15:00 |
| Presentation Time |
30 minutes |
| Registration for |
PRMU |
| Paper # |
PRMU2006-250 |
| Volume (vol) |
vol.106 |
| Number (no) |
no.605 |
| Page |
pp.91-96 |
| #Pages |
6 |
| Date of Issue |
2007-03-08 (PRMU) |