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Use of weighted visual terms for machine learning techniques for image content recognition relying on MPEG-7 visual descriptors (Contributo in atti di convegno)

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Use of weighted visual terms for machine learning techniques for image content recognition relying on MPEG-7 visual descriptors (Contributo in atti di convegno) (literal)

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Amato G.; Savino P.; Magionami V. (2008)
Use of weighted visual terms for machine learning techniques for image content recognition relying on MPEG-7 visual descriptors
in 2nd International Workshop on the Many Faces of Multimedia Semantics, in Conjunction with ACM Multimedia 2008, Vancouver, British Columbia, C
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http://delivery.acm.org/10.1145/1470000/1460689/p60-amato.pdf?ip=146.48.85.78&acc=ACTIVE%20SERVICE&CFID=99374630&CFTOKEN=38965086&__acm__=1335456016_e465ee5c4c352d70ce7f1cb0a07b6421 (literal)

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Proceeding MS '08 Proceedings of the 2nd ACM workshop on Multimedia semantics (literal)

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In: WMS 2008 - 2nd International Workshop on the Many Faces of Multimedia Semantics, in Conjunction with ACM Multimedia 2008 (Vancouver, British Columbia, Canada, 27 October - 1 November 2008). Proceedings, pp. 60 - 63. ACM, 2008. (literal)

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ABSTRACT: We propose a technique for automatic recognition of content in images. Our technique uses machine learning methods to build classifiers which are able to decide about the presence of semantic concepts in images. Our classifiers exploit a representation of images in terms of vectors of visual terms. A visual term represents a set of visually similar regions that can be found in images. Various types of visual terms are used at the same time to take into account various similarity criteria and region representations that are available to compare regions. Specifically, we compare regions using the 5 MPEG-7 visual descriptors. An image is indexed by first using a segmentation algorithm to extract its regions, and then the image is associated with the visual terms that are more similar to the extracted regions. The proposed technique offers very good performance as demonstrated by the experiments that we performed. (literal)

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Titolo

Use of weighted visual terms for machine learning techniques for image content recognition relying on MPEG-7 visual descriptors (literal)

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Abstract

We propose a technique for automatic recognition of content in images. Our technique uses machine learning methods to build classifiers which are able to decide about the presence of semantic concepts in images. Our classifiers exploit a representation of images in terms of vectors of visual terms. A visual term represents a set of visually similar regions that can be found in images. Various types of visual terms are used at the same time to take into account various similarity criteria and region representations that are available to compare regions. Specifically, we compare regions using the 5 MPEG-7 visual descriptors. An image is indexed by first using a segmentation algorithm to extract its regions, and then the image is associated with the visual terms that are more similar to the extracted regions. The proposed technique offers very good performance as demonstrated by the experiments that we performed. (literal)

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