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| Cannyエッジ検出× | 輪郭解析× | |
|---|---|---|
| 分野 | コンピュータビジョン | コンピュータビジョン |
| 系統 | Machine learning | Machine learning |
| 提唱年≠ | 1986 | 1985 |
| 提唱者≠ | John Canny | Satoshi Suzuki and Keiichi Abe |
| 種類≠ | Image gradient analysis | Shape and contour analysis |
| 原典≠ | Canny, J. (1986). A computational approach to edge detection. IEEE Transactions on Pattern Analysis and Machine Intelligence, 8(6), 679–698. DOI ↗ | Suzuki, S., & Abe, K. (1985). Topological structural analysis of digitized binary images by border following. Computer Vision, Graphics, and Image Processing, 30(1), 32–46. DOI ↗ |
| 別名 | Canny operator, Canny edge detector | Edge-based contours, Boundary analysis |
| 関連 | 5 | 5 |
| 概要≠ | The Canny edge detector, introduced by John Canny in 1986, is a multi-stage algorithm for identifying edges in digital images where significant intensity changes occur. Canny's method is optimal for step edges in additive Gaussian noise and remains the gold standard for edge detection in computer vision due to its mathematical elegance and practical effectiveness. | Contour analysis is the process of detecting and analyzing the boundaries of objects in images by identifying connected edges and extracting shape information. The Suzuki-Abe algorithm provides an efficient method for finding contours in binary images, enabling shape-based object classification and segmentation. |
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