標題: | 結合外型和空間關係之影像擷取研究 The Study of Content-based Image Retrieval Using Shape and Spatial Relationship |
作者: | 歐陽永化 Yung-Hua Ouyang 梁婷 Tyne Liang 資訊科學與工程研究所 |
關鍵字: | 影像擷取;空間關係;鏈碼;image retrieval;spatial relationship;chain code |
公開日期: | 2000 |
摘要: | 在本篇論文裡,我們提出一個以內容為主的影像擷取系統,利用鏈碼技術來表示影像的外型特徵。再將鏈碼轉換成為三鏈碼以節省空間,而三鏈碼則是由三個有序鏈碼所構成。我們還提出三鏈碼的相似度測量公式,以擷取外型相似的影像。本方法可以處理單物件影像及多物件影像。對於單物件影像查詢,查詢影像與資料庫中所有影像做外型相似測量。對於多物件影像查詢,查詢影像先與資料庫影像做空間關係比對,以過濾不相似影像。最後我們以實際影像資料驗證本系統對於縮小、旋轉或手繪影像查詢,都能擷取出相似的影像出來。 In this paper, we propose a content-based image retrieval system which uses a chain code technique to represent shape feature. We transform chain code into tri-chain code to reduce storage space. Tri-chain code is constructed by combining every three ordered chain code. Our propose method support single-object images query and multi-object images query. For single-object image query, we use query image’s shape descriptor and compare it with all shape descriptors stored in the image database. For multi-object query, we propose a spatial relationship matching to filter non-similar images in image database. We have illustrated that the system can retrieve the similar images from database by using scaled, rotated , or sketched query images. |
URI: | http://140.113.39.130/cdrfb3/record/nctu/#NT890394002 http://hdl.handle.net/11536/66900 |
顯示於類別: | 畢業論文 |