期刊論文

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
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
國別 日本
公開徵稿
出版型式 紙本