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. 10, 1999
Filed:
Jan. 19, 1996
Applicant:
Inventors:
Byeung-woo Jeon, Seongnam, KR;
Je-chang Jeong, Seoul, KR;
Assignee:
Samsung Electronics Co., Ltd., Kyungki-do, KR;
Primary Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
382268 ; 382275 ; 382232 ; 382254 ; 358433 ;
Abstract
A post-processing device for eliminating a blocking artifact generated upon reconstructing an image compressed by block transform operation and a method thereof minimize a blocking artifact at block boundaries by selecting a predetermined discrete cosine transform (DCT), estimating transform coefficients with respect to the information lost upon quantization or inverse quantization to have the highest continuity with respect to adjacent blocks, performing an inverse transform operation on the estimated transform coefficients, and adding the thus-obtained adjustment value to an inverse-transform-operated reconstructed image signal.