| Presentation | 2006-10-20 Preventing Under- and Oversegmentation by Validation of Image Segments in Scale Space Takuto KOMAZAKI, Tomoya SAKAI, Atsushi IMIYA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a validation scheme for segmentation of a greyscale image. Image segmentation by edge detection is capable of extracting shapes of objects from the image. Unsupervised segmentation methods, however, have difficulty in distinguishing valid segments associated with the objects from invalid random segments due to noise. In this paper, we focus on scale space characteristics of the valid and invalid segments. Since the edge detector, such as Canny's edge detector, contains a scale parameter in its operator, the validity of the extracted segments is dependent on scale selection. Firstly, we suggest that the Canny edge can be regarded as a type of Enomoto's edge surfaces/lines for Gaussian scale-space images. Secondly, we show that the number of invalid segments monotonously decreases with increasing scale. This property allows us to identify the valid segments from coarse to fine, and to prevent under- and oversegmentation. Hierarchical relationships among the segments in the scale space help recursive evaluation of the image segment validity. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Canny edge / deep structure / critical scale |
| Paper # | PRMU2006-111 |
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| Conference Information | |
| Committee | PRMU |
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| Conference Date | 2006/10/13(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 | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Preventing Under- and Oversegmentation by Validation of Image Segments in Scale Space |
| Sub Title (in English) | |
| Keyword(1) | Canny edge |
| Keyword(2) | deep structure |
| Keyword(3) | critical scale |
| 1st Author's Name | Takuto KOMAZAKI |
| 1st Author's Affiliation | Graduate School of Science and Technology, Chiba University() |
| 2nd Author's Name | Tomoya SAKAI |
| 2nd Author's Affiliation | Institute of Media and Information Technology, Chiba University |
| 3rd Author's Name | Atsushi IMIYA |
| 3rd Author's Affiliation | Institute of Media and Information Technology, Chiba University |
| Date | 2006-10-20 |
| Paper # | PRMU2006-111 |
| Volume (vol) | vol.106 |
| Number (no) | 301 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |