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:
Nov. 12, 2024
Filed:
Jun. 23, 2021
Applicant:
Imax Corporation, Mississauga, CA;
Inventors:
Assignee:
IMAX CORPORATION, Mississauga, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 17/00 (2006.01); H04N 19/154 (2014.01); H04N 19/33 (2014.01); H04N 19/587 (2014.01); H04N 19/625 (2014.01); H04N 21/234 (2011.01);
U.S. Cl.
CPC ...
H04N 17/004 (2013.01); H04N 19/154 (2014.11); H04N 19/33 (2014.11); H04N 19/587 (2014.11); H04N 19/625 (2014.11); H04N 21/23418 (2013.01);
Abstract
Detection of scaling of compressed videos or images is provided. A frequency domain transformation is applied along both horizontal and vertical directions of input video or images to generate frequency domain data. Statistics in the frequency domain data are computed for each of the horizontal and vertical directions to extract features. The features are modeled to scores along each of the horizontal and vertical directions. An original resolution of the input video or images in the horizontal and vertical directions is identified according to the scores.