Posts tagged: image retrieval

CVPR’16 Tutorial on Image Tag Assignment, Refinement and Retrieval

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By , June 27, 2016

Cees Snoek and Lamberto Ballan - CVPR 2016We gave a tutorial on “Image Tag Assignment, Refinement and Retrieval” at CVPR 2016, based on our survey. The focus is on challenges and solutions for content-based image retrieval in the context of online image sharing. We present a unified review on three problems: tag assignment, refinement, and tag-based image retrieval.

The slides are available on this page.

Socializing the Semantic Gap: A Survey on Image Tagging and Retrieval

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By , March 20, 2016

ACM Computing SurveysEverything you wanted to know about image tagging, tag refinement and social image retrieval. Our paper has been (finally) accepted to ACM Computing Surveys! This is a titanic effort, by Xirong Li, Tiberio Uricchio, myself, Marco Bertini, Cees Snoek and Alberto Del Bimbo, to structure the growing literature in the field, understand the ingredients of the main works, clarify their connections and difference, and recognize their merits and limitations.

A pre-print is available on arXiv and the source code is on GitHub.

DBMM 2013 Contest

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By , October 30, 2013

DBMM 2012 Contest

MICC laboratories, Florence, 31th October 2013 (10.15-13.15). Course on Multimedia Databases (DBMM) – laboratory lecture.

  • Goal: logo recognition in web images.
  • Dataset/testset: find 4 different logos vs 110 images.
  • Evaluation metrics: recognition performances will be evaluated in terms of mean Average Precision (mAP).

Instructors: Lamberto Ballan, Lorenzo Seidenari.

Download Software & Dataset Go to document (* based on VLFeat library by A. Vedaldi)

Final results (ranking): http://goo.gl/o5DCG5

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