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:
Jun. 13, 2017
Filed:
Jan. 13, 2015
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
Yoshimitsu Murahashi, Osaka, JP;
Sharp Kabushiki Kaisha, Sakai, JP;
Abstract
Provided is an image processing device capable of reproducing an original thin linear image region from a linear image region, which has become thick due to upscaling processing for a low-resolution image. In an image processing device (), an amplitude estimation unit () calculates a magnification a in a local region so that an input image signal becomes similar to a low-resolution pattern PtnL. A similarity calculation unit () outputs a similarity s, which has a great value, at a pixel position which is similar to the low-resolution pattern PtnL. An FIR filter unit () sets an FIR filter coefficient by a difference pattern PtnDiff, receives a product of the magnification a and the similarity s, and performs FIR filter processing, and thereby acquires a high frequency component ΔD. Then, when the high frequency component ΔD is added to an input image Din by an adder (), an output image Dout having excellent definition is acquired.