Large-scale and larger-scale image search

author: Hervé Jégou, INRIA Rennes
published: Oct. 9, 2012,   recorded: September 2012,   views: 777
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Description

The first part of this tutorial, dedicated to large-scale image retrieval, will first introduce the typical use-cases and the datasets used for evaluation of image search when considering an unsupervised framework. We will present different classes of techniques considering different trade-offs with respect to efficiency and search quality. Starting with the most costly but precise patch-based matching and spatial verification techniques, we will present the bag-of-words model, its matching interpretation and several improvements, including re-ranking techniques based on spatial verification and query expansion. Finally, the most scalable techniques based on aggregation/coding techniques and compressed-domain search will be detailed.

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Download slides icon Download slides: bmvc2012_jegou_image_search_01.pdf (17.6 MB)


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