Object-oriented retrieval mechanism for semistructured image collections
Guang-Ho Cha, Chin‐Wan Chung · 1998
~STMCT~ls paper presents the object-oriented image retrieval mechanism ~vhlchprovides the content model, the indexing scheme, and tie query processing techniques m a whole.Three types of image content i.e., visual features, semantic features, and keywords, are define~and they are represented using the object-oriented data model.Three types of index structures corresponding to the identied features are elaborated to facilitate the semch.The query processing techniques to process complex queries which use multiple types of indexes are also descriied Experiments have been carried out on large image collections to demonstrate the effectiveness of the proposed retrieval mechanism. Ke~ordscontent-based retrieva image indexing, object-oriented model, multimedia database 2. PRODUCTION h eve~day life, a large amount of images is produced in \rtious domains ~d fie~~onten~me &1ver5e_ nelvs footage, medical imagery, art collections, weather photos, movie images.and more.& important research issue caused horn thii widespread use of images is content-based image retrieval which helps users retrieve relevant images based on their contents.To provide such a facility images are analyzed so that their content descriptions can be extracted and stored in a database.The descriptions are then used to search the database and to determine which images satis@ the mer's query selection criteria These descriptions are called metadata.The effectiveness of contentbased retrieval depends largely on the availabifi~of rich metadata.The d~criminating power of the retrieval system Permissionto make digitd or hard copies of all or part of this w,ork for personal or cl~room me is granted without fee pro~,ided lhat copies are not made or distributed for profit or mmmercial adnntage, and that copies bar this noti~mrd the full citation on the first page.To copy oihemfie.to republis~to post on sen,ers or 10 redistribute xo lists, requires prior specific permission andlor a fee.