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Authors: Giuseppe Amato ; Fabrizio Falchi and Lucia Vadicamo

Affiliation: CNR, Italy

ISBN: 978-989-758-175-5

Keyword(s): Image Retrieval, Image Representation, Binary Local Features, ORB, Bag of Word, VLAD, Fisher Vector.

Related Ontology Subjects/Areas/Topics: Computer Vision, Visualization and Computer Graphics ; Features Extraction ; Image and Video Analysis

Abstract: During the last decade, various local features have been proposed and used to support Content Based Image Retrieval and object recognition tasks. Local features allow to effectively match local structures between images, but the cost of extraction and pairwise comparison of the local descriptors becomes a bottleneck when mobile devices and/or large database are used. Two major directions have been followed to improve efficiency of local features based approaches. On one hand, the cost of extracting, representing and matching local visual descriptors has been reduced by defining binary local features. On the other hand, methods for quantizing or aggregating local features have been proposed to scale up image matching on very large scale. In this paper, we performed an extensive comparison of the state-of-the-art aggregation methods applied to ORB binary descriptors. Our results show that the use of aggregation methods on binary local features is generally effective even if, as expec ted, there is a loss of performance compared to the same approaches applied to non-binary features. However, aggregations of binary feature represent a worthwhile option when one need to use devices with very low CPU and memory resources, as mobile and wearable devices. (More)

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Paper citation in several formats:
Amato G., Falchi F. and Vadicamo L. (2016). How Effective Are Aggregation Methods on Binary Features?.In Proceedings of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 4: VISAPP, (VISIGRAPP 2016) ISBN 978-989-758-175-5, pages 566-573. DOI: 10.5220/0005719905660573

@conference{visapp16,
author={Giuseppe Amato and Fabrizio Falchi and Lucia Vadicamo},
title={How Effective Are Aggregation Methods on Binary Features?},
booktitle={Proceedings of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 4: VISAPP, (VISIGRAPP 2016)},
year={2016},
pages={566-573},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005719905660573},
isbn={978-989-758-175-5},
}

TY - CONF

JO - Proceedings of the 11th Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 4: VISAPP, (VISIGRAPP 2016)
TI - How Effective Are Aggregation Methods on Binary Features?
SN - 978-989-758-175-5
AU - Amato G.
AU - Falchi F.
AU - Vadicamo L.
PY - 2016
SP - 566
EP - 573
DO - 10.5220/0005719905660573

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