×

Navigation system for document image database

  • US 5,995,978 A
  • Filed: 09/24/1997
  • Issued: 11/30/1999
  • Est. Priority Date: 09/24/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. A method for searching for a particular document image in a database containing a plurality of document images, each document image having a textual component, a compressed representation, and a non-compressed representation, said method comprising:

  • accepting text from a user as a keyword to search;

    searching the textual component of said plurality of document images for said keyword;

    detecting similarity of features extracted from document images having textual components that contain said keyword, wherein said detecting is based on processing of the compressed representation or the non-compressed representation of the document images;

    grouping document images having similar extracted features into a plurality of clusters of document images;

    selecting a representative document image for each of the plurality of clusters of document images;

    displaying the representative document image for each of the plurality of clusters of document images; and

    accepting input from the user indicating a particular cluster of document images.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×