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.:

US 8045816 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 25, 2011

Filed:

Aug. 07, 2007
Applicants:

Mi-yeon Lee, Suwon-si, KR;

Bo-gun Park, Suwon-si, KR;

Inventors:

Mi-yeon Lee, Suwon-si, KR;

Bo-gun Park, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An image quantization method and apparatus are provided in which a block with a high possibility of having color distortion is more elaborately quantized using a predetermined color distortion removing quantization matrix. The image quantization method includes determining a possibility of color distortion in the block using discrete cosine transform (DCT) coefficients and pixel values of the block of predetermined size of an image and performing initial quantization on the block using a predetermined color distortion quantization matrix to remove color distortion if the block has a high possibility of color distortion.


Find Patent Forward Citations

Lee, Mi-yeon. (2011). Image quantization method and apparatus with color distortion removing quantization matrix (U.S. Patent No. 8045816). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8045816

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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