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METHOD AND APPARATUS FOR ENABLING VIRTUAL TAGS

  • US 20120290591A1
  • Filed: 05/13/2011
  • Published: 11/15/2012
  • Est. Priority Date: 05/13/2011
  • Status: Active Grant
First Claim
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1. A computer-implemented method comprising:

  • receiving, at a server computer system, a first digital image data and virtual tag data to be associated with a real-world object in the first digital image data, wherein the first digital image data is captured by a first mobile device, and the virtual tag data includes metadata received from a user of the first mobile device, wherein the virtual tag data received from the user of the first mobile device includes a virtual sticker selected by the user from among a plurality of different virtual stickers, each virtual sticker to convey different information, and the selected virtual sticker to be rendered over digital image data of the real-world object;

    generating a first digital signature from the first digital image data that describes the real-world object, wherein the generated first digital signature comprises a set of feature vectors generated from the first digital image data, each feature vector describing a neighborhood of pixels that surround an interest point for the real-world object in the first digital image data;

    in response to the generation, inserting in substantially real-time the set of feature vectors of the first digital signature into a searchable index of digital images as the set of feature vectors for the first digital image data are generated, the searchable index a searchable k-dimensional tree structure of feature vectors for a plurality of real-world objects;

    storing, in a tag database, the virtual tag data and an association between the virtual tag data and the first digital signature inserted into the index of digital images;

    receiving a second signature generated from a second digital image data captured by a second mobile device, the second digital image data includes one or more real-world objects; and

    transmitting the virtual tag data, received from the user of the first mobile device and associated with the real-world object in the first digital image data, to the second mobile device when a search of the index of digital images based on the second digital signature results in a match with the first digital signature.

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