Title :
Ontological query language for content based image retrieval
Author :
Town, Christopher ; Sinclair, David
Author_Institution :
AT&T Labs., Cambridge, UK
Abstract :
The paper discusses the design and implementation of the oquel query language for content based image retrieval. The retrieval process takes place entirely within the ontological domain defined by the syntax and semantics of the user query. Since the system does not rely on the pre-annotation of images with sentences in the language, the format of text queries is highly flexible. The language is also extensible to allow for the definition of higher level terms such as "cars", "people", "buildings", etc. on the basis of existing language constructs. Images are retrieved by deriving an abstract syntax tree form of a textual user query and probabilistically evaluating it by analysing the composition and perceptual properties of salient image regions in light of the query. The matching process utilises automatically extracted image segmentation and classification information and can incorporate any other feature extraction mechanisms or contextual knowledge available at processing time
Keywords :
computational linguistics; content-based retrieval; feature extraction; image classification; image matching; image retrieval; image segmentation; query languages; text analysis; trees (mathematics); abstract syntax tree; automatically extracted image segmentation; classification information; content based image retrieval; contextual knowledge; feature extraction mechanisms; language constructs; matching process; ontological domain; ontological query language; perceptual properties; processing time; retrieval process; salient image regions; semantics; syntax; text queries; user query; Buildings; Cities and towns; Content based retrieval; Data mining; Database languages; Image analysis; Image retrieval; Information retrieval; Laboratories; Ontologies;
Conference_Titel :
Content-Based Access of Image and Video Libraries, 2001. (CBAIVL 2001). IEEE Workshop on
Conference_Location :
Kauai, HI
Print_ISBN :
0-7695-1354-9
DOI :
10.1109/IVL.2001.990859