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Object retrieval using visual query context

  • US 8,560,517 B2
  • Filed: 07/05/2011
  • Issued: 10/15/2013
  • Est. Priority Date: 07/05/2011
  • Status: Active Grant
First Claim
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1. A method comprising:

  • under control of one or more processors specifically configured with executable instructions,receiving, at a search engine, a query associated with a query image, the query image including a plurality of pixels;

    categorizing a first portion of the plurality of pixels as foreground pixels;

    categorizing a second portion of the plurality of pixels as background pixels;

    determining saliency scores for each of the plurality of pixels based on the foreground pixels and the background pixels, the saliency scores comprising contrast-based saliency scores;

    normalizing the saliency scores to create normalized saliency scores;

    transforming the normalized saliency scores to create a prior probability distribution;

    determining a search intent based on the prior probability distribution using a dual-sigmoid approximation; and

    identifying, from a set of images, one or more images that match the query image based on the search intent.

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