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:
May. 19, 2020
Filed:
Mar. 15, 2019
Synaptics Japan Gk, Nakano, Tokyo, JP;
Hirobumi Furihata, Tokyo, JP;
Masao Orio, Tokyo, JP;
Susumu Saito, Tokyo, JP;
Takashi Nose, Tokyo, JP;
Akio Sugiyama, Tokyo, JP;
Synaptics Japan GK, Tokyo, JP;
Abstract
An image processing apparatus includes: a first circuit which calculates values f(R), f(G) and f(B) by applying a function f(x) to an R grayscale value R, a G grayscale value Gand a B grayscale value Bof each pixel i of a first image; a second circuit which calculates values f(R), f(G) and f(B) by applying the function f(x) to an R grayscale value R, a G grayscale value Gand a B grayscale value Bof each pixel i of a second image; and a similarity calculation circuit which calculates a degree of similarity between the first and second images depending on |f(R)−f(R)|, |f(G)−f(G)| and |f(B)−f(B)| associated with each pixel i of the first and second images. The function f(x) is a convex function monotonically non-decreasing in the domain of definition.