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:
May. 28, 2013
Filed:
Mar. 31, 2011
Applicants:
Sharon Carmel, Ramat Hasharon, IL;
Dror Gill, Haifa, IL;
Tamar Shoham, Netanya, IL;
Inventors:
Assignee:
I.C.V.T. Ltd., Tel-Aviv, IL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of classifying a compressed input image's compression level, comprising applying inverse quantization to DCT coefficients extracted from the compressed input image, giving rise to dequantized DCT coefficients, applying a threshold to the dequantized DCT coefficients, and determining a compression level classification for the compressed input image according to a relation among the threshold and at least one of the dequantized DCT coefficients.