| Presentation | 2007-10-26 Signboard Recognition by Consistency Checking of Local Features(Internationa Session 6) Jihoon Kim, Taik Heon Rhee, Kee-Eung Kim, Jin Hyung Kim, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The problem of recognizing signboards in street scenes is defined as matching the input image to pre-stored 2D signboard images. This problem is not as simple as it appears to be due to arbitrary drawings and relative 3D positions. We approach this problem by first matching local features of input image to those of images in the database. These matches are later verified with the global features, namely the homographic consistency and the color consistency. The well-known SIFT feature is used as the local feature and the homographic consistency checking is performed using RANSAC, a randomized method for finding an optimal match. In order to handle signboards with large perspective distortions, several templates with different perspective transformations are generated a-priori. In our experiments, the proposed method achieves up to 95% recognition rate, showing good results despite the highly distorted input images. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Signboard recognition / Homography / Perspective Transform / SIFT / RANSAC |
| Paper # | PRMU2007-118 |
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| Conference Information | |
| Committee | PRMU |
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| Conference Date | 2007/10/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Pattern Recognition and Media Understanding (PRMU) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Signboard Recognition by Consistency Checking of Local Features(Internationa Session 6) |
| Sub Title (in English) | |
| Keyword(1) | Signboard recognition |
| Keyword(2) | Homography |
| Keyword(3) | Perspective Transform |
| Keyword(4) | SIFT |
| Keyword(5) | RANSAC |
| 1st Author's Name | Jihoon Kim |
| 1st Author's Affiliation | Computer Science Department, KAIST() |
| 2nd Author's Name | Taik Heon Rhee |
| 2nd Author's Affiliation | Computer Science Department, KAIST |
| 3rd Author's Name | Kee-Eung Kim |
| 3rd Author's Affiliation | Computer Science Department, KAIST |
| 4th Author's Name | Jin Hyung Kim |
| 4th Author's Affiliation | Computer Science Department, KAIST |
| Date | 2007-10-26 |
| Paper # | PRMU2007-118 |
| Volume (vol) | vol.107 |
| Number (no) | 281 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |