| Presentation | 2006-02-21 Detection of Person who Moves in Prohibited Direction by using Video Camera Hiroyuki ARAI, Takayuki YASUNO, Midori MIZUKAMI, Miki HSEYAMA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose a method for detection of person who moves in prohibited direction, by using a general video camera which is set along under-diagonal viewing angle. In crowded situation, tracking every person is difficult, but computing optical-flow is rather stable than tracking, and the flow vector with opposite direction is a key to detect opposite moving. However, flow vectors from one person appear fragmentary. Therefore, to integrate such fragmented flow-vectors as one motion is a problem. To solve this, we use "x-t map" which records x-position and its moving direction versus time, which is made from x-projection of background difference image and x-projection of x-component of optical flow. Finding opposite moving in "x-t map" is done by Hough transformation. Experimental result shows its effectiveness. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | video surveillance / intrusion detection / opposite moving / optical flow / Hough transformation |
| Paper # | ITS2005-84,IE2005-291 |
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| Conference Information | |
| Committee | ITS |
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| Conference Date | 2006/2/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Intelligent Transport Systems Technology (ITS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Detection of Person who Moves in Prohibited Direction by using Video Camera |
| Sub Title (in English) | |
| Keyword(1) | video surveillance |
| Keyword(2) | intrusion detection |
| Keyword(3) | opposite moving |
| Keyword(4) | optical flow |
| Keyword(5) | Hough transformation |
| 1st Author's Name | Hiroyuki ARAI |
| 1st Author's Affiliation | NTT Cyber Space Laboratories, NTT Corporation() |
| 2nd Author's Name | Takayuki YASUNO |
| 2nd Author's Affiliation | NTT Cyber Space Laboratories, NTT Corporation |
| 3rd Author's Name | Midori MIZUKAMI |
| 3rd Author's Affiliation | Frontier Service Development Laboratory, Research and Development Center of JR East Group |
| 4th Author's Name | Miki HSEYAMA |
| 4th Author's Affiliation | Graduate School of Information Science and Technology, Hokkaido University |
| Date | 2006-02-21 |
| Paper # | ITS2005-84,IE2005-291 |
| Volume (vol) | vol.105 |
| Number (no) | 609 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |