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. 06, 2017
Filed:
Mar. 09, 2015
Takayuki Hara, Kanagawa, JP;
Takayuki Hara, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A projection image correcting apparatus for correcting, according to a three-dimensional shape of a projection surface, an original image to be projected, includes a projecting unit configured to project a pattern image on the projection surface, by controlling an image projecting device; a capturing unit configured to obtain a captured image of the projection surface on which the pattern image is projected, by controlling an image capturing device; a feature point extracting unit configured to extract feature points in the captured image corresponding to feature points in the pattern image; and a three-dimensional coordinates measuring unit configured to measure, by triangulation using the extracted feature points, three-dimensional coordinates of a plurality of measuring points on the projection surface corresponding to the feature points; and a reliability calculating unit configured to calculate reliabilities of the measuring points.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile