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 7477804 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 13, 2009

Filed:

Nov. 12, 2004
Applicants:

Hwe-ihn Chung, Gyeonggi-do, KR;

Yong-in Han, Gyeonggi-do, KR;

Inventors:

Hwe-Ihn Chung, Gyeonggi-do, KR;

Yong-In Han, Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/32 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention is an interpolation device and method. According to the present invention, a plurality of pixels close to a pixel to be interpolated are sequentially set to a central pixel. When a pixel difference closest to a threshold value among pixel differences between the central pixel and a plurality of pixels around the central pixel belongs to a quasi-edge decision range, an edge interpolation and a bilinear interpolation are mixed to interpolate the pixel to be interpolated. As a result, it is possible to prevent reduction in image quality due to an edge verdict caused by unstable input image signal and perform a stable interpolation operation.


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Chung, Hwe-Ihn. (2009). Image interpolation apparatus and method (U.S. Patent No. 7477804). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7477804

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