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. 14, 2024
Filed:
Nov. 18, 2021
Canon Kabushiki Kaisha, Tokyo, JP;
Naoto Takahashi, Kanagawa, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image processing apparatus removes a pattern caused by a grid from a radiation image captured by using a scattered ray removal grid. The image processing apparatus includes a grid pattern removal unit, a filtering unit, and a distortion correction unit. The grid pattern removal unit is configured to generate a grid pattern removal image by removing a grid pattern from the radiation image. The filtering unit is configured to extract a frequency component lower than a frequency of the grid pattern from the radiation image. The distortion correction unit is configured to replace a low-frequency component included in the grid pattern removal image with a frequency component obtained by the filtering unit.