| Presentation | 1999/1/21 Best Marker Pattern Design for Recognition by Adjacency Ratio: Experimental Investigation Chikara Matsunaga, Kazutaka Niijima, Kenichi Kanatani, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Using the optimal marker patterns proposed in our previous report, we design an optimal grid pattern and study the method for identifying the position in the original pattern from an image of a small portion of it. We derive a decision criterion based on maxmum likelihood estimation(Mahalanobis distance minimization)by analyzing the statistical behavior of the adjacency ratios. In order to improve the performance, we incorporate the aspect ratio by analyzing the covariance between the adjacency ratios and the aspect ratios. We further add colour information and do simulated and real-image experiments. We automatically extract a grid structure from a real image and estimate the noise magnitude by optimally imposing the orthgonality constraint and applying the statistical optimization theory. Using the bootstrap procedure, we show that our method exhibits high reliability. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | adjacency ratio / statistical classification / reliability evaluation / error analysis / camera calibration / image processing |
| Paper # | PRMU98-182 |
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| Conference Information | |
| Committee | PRMU |
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| Conference Date | 1999/1/21(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 | 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) | Best Marker Pattern Design for Recognition by Adjacency Ratio: Experimental Investigation |
| Sub Title (in English) | |
| Keyword(1) | adjacency ratio |
| Keyword(2) | statistical classification |
| Keyword(3) | reliability evaluation |
| Keyword(4) | error analysis |
| Keyword(5) | camera calibration |
| Keyword(6) | image processing |
| 1st Author's Name | Chikara Matsunaga |
| 1st Author's Affiliation | Broadcast Division, FOR-A Co.Ltd() |
| 2nd Author's Name | Kazutaka Niijima |
| 2nd Author's Affiliation | Department of Computer Science Gunma University |
| 3rd Author's Name | Kenichi Kanatani |
| 3rd Author's Affiliation | Department of Computer Science Gunma University |
| Date | 1999/1/21 |
| Paper # | PRMU98-182 |
| Volume (vol) | vol.98 |
| Number (no) | 527 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |