| Presentation | 2008-12-18 Overlapping Area Measurement of Camera View Volumes Based on SIFT Tracking Tsukasa SUMIYA, Yoshinari KAMEDA, Yuichi OHTA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a new measurement method of overlapping area of viewing volumes of multiple cameras. It is defined by an overlapping amount of the two volumes observed on camera images, and 3D explicit analysis is not needed to estimate it. Analysis of overlapping space that is visible from different cameras is important for monitoring applications. The extent of the overlapping space should be figured not only by the overlapping amount of camera viewing volumes but also by the lines of sight of the cameras. We exploit SIFT key to estimate the overlapping extent. The intersection set of the SIFT keys which are simultaneously observed on different images is estimated and the bounding box of which drawn on an image indicates its overlapping area. In case of extracting SIFT key set in a video sequence taken by a moving camera we introduce lifetime constraint so that only the long lasting keys could be counted for calculation. We have conducted some experiments in real environment and succeeded in showing the overlapping area of fixed cameras in a video sequence taken by a moving camera, where the fixed cameras are placed among the video path. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Feature point tracking / Moving camera / Fixed camera / Monitoring |
| Paper # | PRMU2008-161 |
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| Conference Information | |
| Committee | PRMU |
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| Conference Date | 2008/12/11(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 | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Overlapping Area Measurement of Camera View Volumes Based on SIFT Tracking |
| Sub Title (in English) | |
| Keyword(1) | Feature point tracking |
| Keyword(2) | Moving camera |
| Keyword(3) | Fixed camera |
| Keyword(4) | Monitoring |
| 1st Author's Name | Tsukasa SUMIYA |
| 1st Author's Affiliation | Graduate School of Systems and Information Engineering, University of Tsukuba() |
| 2nd Author's Name | Yoshinari KAMEDA |
| 2nd Author's Affiliation | Graduate School of Systems and Information Engineering, University of Tsukuba |
| 3rd Author's Name | Yuichi OHTA |
| 3rd Author's Affiliation | Graduate School of Systems and Information Engineering, University of Tsukuba |
| Date | 2008-12-18 |
| Paper # | PRMU2008-161 |
| Volume (vol) | vol.108 |
| Number (no) | 363 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |