Brasil
| Artículos de revistas
A support system for content-based medical image retrieval in object oriented databases
Fecha
1997-12-01Registro en:
Journal of Medical Systems, v. 21, n. 6, p. 339-352, 1997.
0148-5598
10.1023/A:1022868128573
2-s2.0-7144227273
Autor
Universidade de São Paulo (USP)
Development and Research Institute on Database and Information Management
Universidade Estadual Paulista (UNESP)
Institución
Resumen
This work describes both the concepts used in an Object Manager for storage of medical images as one more data type associated to objects, and a support system developed to offer this kind of tool to medical application developers. The purpose of this work is to support the retrieval of images through queries based on the graphical contents of the stored images. The usual approach uses icons and textual attributes stored with the images to specify the queries. This work uses a novel modeling technique to define the 'image data type,' by means of which it is possible to decide, before the query itself, the key data of each image that must be extracted from the image when it is stored in the database, so the search can be accelerated when queries are issued. This approach enables building of expansible systems, where new image processing algorithms can be added easily, using its syntactic representation stored through an Image Meta-schema into the application database schema. This work shows how such a system has been implemented, and also provides a query language used to refer and execute these algorithms from inside the database management system.