05933823 is referenced by 242 patents and cites 20 patents.

Method and apparatus for querying a document image database based on texture, i.e., analytically discernable patterns in the document images of the database. According to the invention, a document image database could be browsed for documents with a particular texture in a variety of ways. For example, a user could input an example document image with a similar appearance to the desired document. Alternatively, the user could employ a simple interface to define a synthetic document based on selection of a few categories. The synthetic document would then serve as an example for search. Or the user may employ a graphical interface to more precisely define an example for search. Thus, the user's knowledge of the general appearance of the desired document or documents provides the basis for the search.

Title
Image database browsing and query using texture analysis
Application Number
8/609641
Publication Number
5933823
Application Date
March 1, 1996
Publication Date
August 3, 1999
Inventor
Peter Hart
Menlo Park
CA, US
Jonathan Hull
Cupertino
CA, US
John Cullen
Redwood City
CA, US
Agent
Townsend and Townsend and Crew
Assignee
Ricoh Corporation
CA, US
Ricoh Company
JP
IPC
G06F 17/30
View Original Source