PMID: 16520146Mar 8, 2006Paper

Using an image-extended relational database to support content-based image retrieval in a PACS

Computer Methods and Programs in Biomedicine
Caetano TrainaPaulo M Azevedo-Marques

Abstract

This paper presents a new Picture Archiving and Communication System (PACS), called cbPACS, which has content-based image retrieval capabilities. The cbPACS answers range and k-nearest- neighbor similarity queries, employing a relational database manager extended to support images. The images are compared through their features, which are extracted by an image-processing module and stored in the extended relational database. The database extensions were developed aiming at efficiently answering similarity queries by taking advantage of specialized indexing methods. The main concept supporting the extensions is the definition, inside the relational manager, of distance functions based on features extracted from the images. An extension to the SQL language enables the construction of an interpreter that intercepts the extended commands and translates them to standard SQL, allowing any relational database server to be used. By now, the system implemented works on features based on color distribution of the images through normalized histograms as well as metric histograms. Metric histograms are invariant regarding scale, translation and rotation of images and also to brightness transformations. The cbPACS is prepared to integrate n...Continue Reading

References

Oct 4, 2000·IEEE Engineering in Medicine and Biology Magazine : the Quarterly Magazine of the Engineering in Medicine & Biology Society·X Cao, H K Huang

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Citations

Jan 12, 2008·Journal of Digital Imaging·Joaquim Cezar FelipeAgma Juci Machado Traina
Feb 2, 2008·Journal of Digital Imaging·Thomas M DesernoRodney Long
Apr 10, 2010·International Journal of Computer Assisted Radiology and Surgery·Petra WelterRolf W Günther
Mar 24, 2004·International Journal of Medical Informatics·Henning MüllerAntoine Geissbuhler
Jun 16, 2011·Journal of the American Medical Informatics Association : JAMIA·Petra WelterThomas M Deserno
Aug 19, 2007·Dento Maxillo Facial Radiology·T M DesernoH-G Gröndahl
Oct 7, 2011·Computer Methods and Programs in Biomedicine·Petra WelterThomas M Deserno né Lehmann
Feb 1, 2011·Journal of Biomedical Informatics·Chia-Hung WeiPai Jung Huang
Aug 12, 2015·Journal of Digital Imaging·Marcos Vinicius Naves BedoCaetano Traina
Sep 3, 2020·Computer Methods and Programs in Biomedicine·Tengyue LiSabah Mohammed

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