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. 25, 2020
Filed:
Jan. 26, 2015
Applicant:
Kt Corporation, Kyeonggi-do, KR;
Inventors:
Assignee:
KT CORPORATION, Kyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 19/61 (2014.01); H04N 19/12 (2014.01); H04N 19/625 (2014.01); H04N 19/44 (2014.01); H04N 19/176 (2014.01); H04N 19/122 (2014.01); H04N 19/157 (2014.01); H04N 19/18 (2014.01); H04N 19/194 (2014.01); H04N 19/96 (2014.01); H04N 19/513 (2014.01); H04N 19/124 (2014.01); H04N 19/147 (2014.01);
U.S. Cl.
CPC ...
H04N 19/61 (2014.11); H04N 19/12 (2014.11); H04N 19/122 (2014.11); H04N 19/124 (2014.11); H04N 19/157 (2014.11); H04N 19/176 (2014.11); H04N 19/18 (2014.11); H04N 19/194 (2014.11); H04N 19/44 (2014.11); H04N 19/45 (2014.11); H04N 19/513 (2014.11); H04N 19/625 (2014.11); H04N 19/96 (2014.11); H04N 19/147 (2014.11);
Abstract
The present invention relates to a technique for encoding and decoding an image, and a method for encoding the image, according to the present invention, comprises the steps of: performing a prediction with respect to a current block; and transforming a residual which is generated by the prediction, wherein in the step of transforming, a first transform is performed on the residual, and then a second transform is performed on a lower frequency area, and wherein a mode of the second transform can be decided on the basis of a mode of the first transform.