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:
Mar. 16, 2021
Filed:
Feb. 25, 2020
Ayumu Hashimoto, Kanagawa, JP;
Hajime Tsukahara, Kanagawa, JP;
Hiroki Shirado, Kanagawa, JP;
Yuuki Nakada, Kanagawa, JP;
Tomohiko Ono, Kanagawa, JP;
Tatsuya Ozaki, Kanagawa, JP;
Hiroshi Kubo, Kanagawa, JP;
Kimiharu Yanagisawa, Tokyo, JP;
Yoshiaki Nagao, Kanagawa, JP;
Masahiro Itoh, Kanagawa, JP;
Ayumu Hashimoto, Kanagawa, JP;
Hajime Tsukahara, Kanagawa, JP;
Hiroki Shirado, Kanagawa, JP;
Yuuki Nakada, Kanagawa, JP;
Tomohiko Ono, Kanagawa, JP;
Tatsuya Ozaki, Kanagawa, JP;
Hiroshi Kubo, Kanagawa, JP;
Kimiharu Yanagisawa, Tokyo, JP;
Yoshiaki Nagao, Kanagawa, JP;
Masahiro Itoh, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An image processing apparatus includes circuitry to: obtain a read image read from an image of a document output from an image reading device; detect an edge between a background area and a document area in the read image; sample a detection result of the edge at each first interval in a first direction to extract a first boundary point group including a plurality of boundary points; sample the detection result of the edge at each second interval in the first direction to extract a second boundary point group including a plurality of boundary points; determine a noise removal condition based on the first boundary point group; remove, from the second boundary point group, a boundary point satisfying the noise removal condition as noise; and calculate a linear equation approximating the second boundary point group from which the noise is removed.