教師資料查詢 | 類別: 期刊論文 | 教師: 林慧珍 Lin Hwei-jen (瀏覽個人網頁)

標題:Fast copy-move forgery detection
學年97
學期2
出版(發表)日期2009/05/01
作品名稱Fast copy-move forgery detection
作品名稱(其他語言)
著者Lin, Hwei-Jen; Wang, Chun-Wen; Kao, Yang-Ta
單位淡江大學資訊工程學系
出版者Wisconsin: World Scientific and Engineering Academy and Society
著錄名稱、卷期、頁數WSEAS Transactions on Signal Processing 5(5), pp.188-197
摘要This paper proposes a method for detecting copy-move forgery over images tampered by copy-move. To detect such forgeries, the given image is divided into overlapping blocks of equal size, feature for each block is then extracted and represented as a vector, all the extracted feature vectors are then sorted using the radix sort. The difference (shift vector) of the positions of every pair of adjacent feature vectors in the sorting list is computed. The accumulated number of each of the shift vectors is evaluated. A large accumulated number is considered as possible presence of a duplicated region, and thus all the feature vectors corresponding to the shift vectors with large accumulated numbers are detected, whose corresponding blocks are then marked to form a tentative detected result. Finally, the medium filtering and connected component analysis are performed on the tentative detected result to obtain the final result. Compared with other methods, employing the radix sort makes the detection much more efficient without degradation of detection quality.
關鍵字Forgery Detection; Copy-move Forgery;Singular Value Decomposition (SVD);Principal Component Analysis (PCA);Lexicographical Sort;Scale Invariant Feature Transform (SIFT) Descriptors;Log-polar Coordinates;Radix Sort;Connected Component Analysis
語言英文
ISSN1790-5052; 2224-3488
期刊性質國外
收錄於EI
產學合作
通訊作者Lin, Hwei-Jen; Wang, Chun-Wen; Kao, Yang-Ta
審稿制度
國別美國
公開徵稿
出版型式紙本
相關連結
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