| Revision of Using Eigenvalues of Covariance Matrices in Boundary-Based Corner Detection | |
|---|---|
| 學年 | 98 |
| 學期 | 1 |
| 出版（發表）日期 | 2009-09-01 |
| 作品名稱 | Revision of Using Eigenvalues of Covariance Matrices in Boundary-Based Corner Detection |
| 作品名稱（其他語言） | 修正使用共變異數矩陣的特徵值作為以邊緣為基礎的角點偵測 |
| 著者 | Horng, Wen-Bing; Chen, Chun-Wen |
| 單位 | 淡江大學資訊工程學系 |
| 出版者 | Tokyo: Denshi Jouhou Tsuushin Gakkai |
| 著錄名稱、卷期、頁數 | IEICE Transactions on Information and Systems E92-D(9), pp.1692-1701 |
| 摘要 | In this paper, we present a revision of using eigenvalues of covariance matrices proposed by Tsai et al. as a measure of significance (i.e., curvature) for boundary-based corner detection. We first show the pitfall of Tsai et al.'s approach. We then further investigate the properties of eigenvalues of covariance matrices of three different types of curves and point out a mistake made by Tsai et al.'s method. Finally, we propose a modification of using eigenvalues as a measure of significance for corner detection to remedy their defect. The experiment results show that under the same conditions of the test patterns, in addition to correctly detecting all true corners, the spurious corners detected by Tsai et al.'s method disappear in our modified measure of significance. |
| 關鍵字 | Corner detection; Cvariance matrix; Curvature estimation; eigenvalue; Measure of significance |
| 語言 | en |
| ISSN | 0916-8532 |
| 期刊性質 | 國外 |
| 收錄於 | SCI EI |
| 產學合作 | |
| 通訊作者 | Horng, Wen-Bing |
| 審稿制度 | 是 |
| 國別 | JPN |
| 公開徵稿 | |
| 出版型式 | 紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/59963 ) |
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