| Presentation | 2001/2/16 Precise Sub-Pixel Estimation on Area-Based Matching Masao SHIMIZU, Masatoshi OKUTOMI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Area-based matching is a common procedure in various fields like image-based measurements, stereo image processing, and fluidics. Sub-pixel estimation using parabola fitting over three points with their similarity measures is also a common method to increase the resolution of matching. However, few investigations or studies concerning the characteristics of this estimation are reported. In this paper, we have analyzed the sub-pixel estimation error by using an approximate image function and three kinds of similarity measures for matching. The result illustrates some inherent phenomena like so called "pixel-locking". Additionally, we propose a new algorithm to greatly reduce the sub-pixel estimation error. This method is independent from the similarity measure and quite simple to implement. The advantage of our novel method is confirmed through experiments using two different types of images. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | area-based matching / sub-pixel estimation / estimation error / pixel-locking |
| Paper # | PRMU2000-193 |
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| Conference Information | |
| Committee | PRMU |
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| Conference Date | 2001/2/16(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) | Precise Sub-Pixel Estimation on Area-Based Matching |
| Sub Title (in English) | |
| Keyword(1) | area-based matching |
| Keyword(2) | sub-pixel estimation |
| Keyword(3) | estimation error |
| Keyword(4) | pixel-locking |
| 1st Author's Name | Masao SHIMIZU |
| 1st Author's Affiliation | Graduate School of Information Science and Engineering, Tokyo Institute of Technology() |
| 2nd Author's Name | Masatoshi OKUTOMI |
| 2nd Author's Affiliation | Graduate School of Information Science and Engineering, Tokyo Institute of Technology |
| Date | 2001/2/16 |
| Paper # | PRMU2000-193 |
| Volume (vol) | vol.100 |
| Number (no) | 634 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |