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:
Jan. 23, 2018
Filed:
Mar. 28, 2016
Canon Kabushiki Kaisha, Tokyo, JP;
Yuta Nakano, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A brightness information generation unitgenerates brightness profiles, serving as brightness information, from each Sobel image formed by an image transformation unit. A feature point detection unitextracts feature points from the generated brightness information. In this case, maximum points (hereinafter, referred to as 'peaks') in the brightness profiles generated from the Sobel image are determined and detected as feature points. A layered structure identification unitidentifies the kind of the boundary of each layer or that of the layer in the retina. To identify the kind of the layer or boundary, brightness values in an area between the peaks are obtained from a median image and the layered structure in the area between the peaks is determined, thus identifying the kind of the layer or boundary corresponding to each peak on the basis of information indicating the determination.