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- W221293513 abstract "In this work we deal with the problem of how different local descriptors can be extended, used and combined for improving the effectiveness of video concept detection. The main contributions of this work are: 1) We examine how effectively a binary local descriptor, namely ORB, which was originally proposed for similarity matching between local image patches, can be used in the task of video concept detection. 2) Based on a previously proposed paradigm for introducing color extensions of SIFT, we define in the same way color extensions for two other non-binary or binary local descriptors (SURF, ORB), and we experimentally show that this is a generally applicable paradigm. 3) In order to enable the efficient use and combination of these color extensions within a state-of-the-art concept detection methodology (VLAD), we study and compare two possible approaches for reducing the color descriptor’s dimensionality using PCA. We evaluate the proposed techniques on the dataset of the 2013 Semantic Indexing Task of TRECVID." @default.
- W221293513 created "2016-06-24" @default.
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- W221293513 date "2015-01-01" @default.
- W221293513 modified "2023-09-23" @default.
- W221293513 title "A Study on the Use of a Binary Local Descriptor and Color Extensions of Local Descriptors for Video Concept Detection" @default.
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- W221293513 doi "https://doi.org/10.1007/978-3-319-14445-0_25" @default.
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