Search results for "Content based retrieval"

showing 3 items of 3 documents

Suitability of a content-based retrieval method in astronomical image databases

1996

Abstract Indexing and retrieval methods based on the image content are required to effectively use information from large repositories of digital images. Usually, the way to search for data and images in astronomical archives is via textual queries expressed in terms of constraints on observation parameters. In this paper we present a method for automatic extraction of images by using shape descriptions based on local symmetry. The proposed indexing methodology has been developed and tested inside JACOB, a prototypal system for content-based video database querying.

Digital imageInformation retrievalAutomatic image annotationComputer scienceContent (measure theory)Search engine indexingAstronomy and AstrophysicsVisual WordImage retrievalImage (mathematics)Content based retrievalVistas in Astronomy
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Hardware implementation of content based video indexing algorithms

2005

This paper focus on hardware implementation of content based video indexing techniques by using the FPGA technology. We aim to propose hardware modules that can satisfy requirements of constrained applications, such as real time applications and complex applications that can combine a large number of techniques in the same indexing system. We represent tow examples of micro-architectures related to the dominant colors descriptor and the compact color descriptor.

Focus (computing)Hardware modulesbusiness.industryComputer scienceContent (measure theory)Search engine indexingComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONbusinessField-programmable gate arrayComputer hardwareMicroarchitectureContent based retrieval2005 12th IEEE International Conference on Electronics, Circuits and Systems
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Damages of Digitized Historical Images as Objects for Content Based Applications

2006

This work presents the preliminary results achieved within a FIRB project aimed to develop innovative support tools for automatic or semi-automatic restoration of damaged digital images oncerning archaeological and monumental inheritance of Mediterranean coast. In particular, this paper is focused on a methodology for describing image degradation and its meta-representation for content based storing and retrieval. Our innovative idea is to decompose and store in a conventional RDBMS the images content, considering the damages as objects of the images. Moreover, a set of descriptors(a subset of MPEG7 descriptors) is used for the damage meta representation aimed to content based application. …

Settore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniContent based retrieval
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