The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 20, 2004
Filed:
Mar. 23, 2001
Applicant:
Inventors:
Tinku Acharya, Chandler, AZ (US);
Bhargab B. Bhattacharya, Calcutta, IN;
Arijit Bishnu, Calcutta, IN;
Malay K. Kundu, Calcutta, IN;
Chivukula A. Murthy, Calcutta, IN;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/54 ;
U.S. Cl.
CPC ...
G06K 9/54 ;
Abstract
A Mahalanobis distance measure is used to identify a query image among plural images in a database. The measure may be used to rank the similarity of one or more images to the query image. A variance-covariance matrix is calculated for all images in the database. The variance-covariance matrix is used to calculate the Mahalanobis distance between the query image and one or more images in the database. A range tree may be used to identify likely image candidates for performing the Mahalanobis distance measurement.