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Information processing apparatus and information processing method

  • US 7,734,095 B2
  • Filed: 10/18/2005
  • Issued: 06/08/2010
  • Est. Priority Date: 10/19/2004
  • Status: Expired due to Fees
First Claim
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1. An information processing apparatus comprising:

  • holding means for holding a plurality of images;

    input means for inputting a query image;

    feature amount acquisition means for dividing the query image into a plurality of blocks, and calculating plural kinds of feature amounts including a luminance feature amount and an edge feature amount for each of the divided blocks;

    variance calculation means for calculating a variation of all feature amounts belonging to an identical kind, for each of the plural kinds;

    similarity calculations means for calculating a similarity between the query image and an image of interest held in said holding means for each of the plural kinds;

    weight calculation means for calculating a weight value for each of the plural kinds, wherein the weight value is larger for a kind with a large variation and is smaller for a kind with a small variation;

    weighting means for weighting the similarity calculated for each of the plural kinds by using the weight value calculated for each of the plural kinds, respectively; and

    retrieving means for retrieving a similar candidate, from said holding means, by using the weighted similarities.

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