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:
Feb. 24, 2015
Filed:
Feb. 01, 2013
Applicant:
Qingzhong Liu, Huntsville, TX (US);
Inventor:
Qingzhong Liu, Huntsville, TX (US);
Assignee:
Sam Houston University, Huntsville, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06T 1/00 (2006.01); H04N 7/167 (2011.01);
U.S. Cl.
CPC ...
G06T 1/0021 (2013.01); G06T 1/005 (2013.01); G06T 2201/0065 (2013.01); G06T 2201/0052 (2013.01);
Abstract
Systems and methods for detecting hidden messages and information in digital files are described. In an embodiment, a method of detecting steganography in a compressed digital image includes extracting neighboring joint density features from the image under scrutiny. Steganography in the image may be detected based on differences in a neighboring joint density feature of the image.