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Indexed document modification sharing with mixed media reality

  • US 10,192,279 B1
  • Filed: 03/31/2008
  • Issued: 01/29/2019
  • Est. Priority Date: 07/11/2007
  • Status: Active Grant
First Claim
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1. A computer-implemented method of modifying documents for shared use, comprising:

  • creating, by a processor, an index in a database by transforming features detected in a document into textual terms that represent both the features and two-dimensional relationships of the features in the document, the features including trigrams of word lengths horizontally and vertically;

    receiving, by the processor, a first digital image from a first user, the first digital image including text;

    extracting, by the processor from the first digital image, horizontal and vertical features including a geometric arrangement of word lengths in the text of the first digital image;

    retrieving, by the processor, the document from the database based on matching the two-dimensional relationships of the features in the document included in the index, including the trigrams of word lengths horizontally and vertically, with the geometric arrangement of word lengths included in the horizontal and vertical features extracted from the first digital image;

    receiving, by the processor, user information of users that have interacted with the document;

    recognizing, by the processor, that the document is associated with the first user based on searching a database including the user information;

    receiving, by the processor, from the first user a modification to the document associated with the first digital image;

    applying, by the processor, the modification to the document;

    creating, by the processor, a modified document associated with the first user using the modification;

    updating, by the processor, the index to include the modification to the document;

    receiving, by the processor, a second digital image;

    determining, by the processor, that the second digital image includes at least a portion of the document and is similar to the first digital image based on the two-dimensional relationships of the features in the document and the modification of the document included in the index;

    determining, by the processor, that the second digital image is associated with a second user based on searching the database including the user information; and

    in response to the first user and the second user capturing similar digital images, authorizing, by the processor, the second user to access a web-based interface to communicate with the first user about the modified document posted on the web-based interface by the first user.

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