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:
Aug. 11, 2020
Filed:
Sep. 01, 2017
Applicant:
Lg Electronics Inc., Seoul, KR;
Inventors:
Bohan Li, San Jose, CA (US);
Arash Vosoughi, San Jose, CA (US);
Onur G. Guleryuz, San Jose, CA (US);
Assignee:
LG ELECTRONICS INC., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/60 (2014.01); H04N 19/88 (2014.01); H04N 19/91 (2014.01); G06F 7/78 (2006.01);
U.S. Cl.
CPC ...
H04N 19/60 (2014.11); G06F 7/78 (2013.01); H04N 19/88 (2014.11); H04N 19/91 (2014.11);
Abstract
The present invention provides a method for performing transformation using a layered Givens transform (LGT), comprising the steps of: deriving at least one rotation layer and at least one permutation layer on the basis of a given transform matrix (H) and a given error parameter; acquiring a LGT coefficient on the basis of the rotation layer and the permutation layer; and quantizing and entropy-encoding the LGT coefficient, wherein the permutation layer comprises a permutation matrix obtained by permuting a row of an identity matrix.