教師資料查詢 | 類別: 期刊論文 | 教師: 洪文斌 Horng Wen-bing (瀏覽個人網頁)

標題: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
語言英文
ISSN0916-8532
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
國別日本
公開徵稿
出版型式紙本
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