Title:
オーバーヘッド型画像読取装置、画像処理方法、および、プログラム
Document Type and Number:
Japanese Patent JP5723688
Kind Code:
B2
Abstract:
An overhead image-reading apparatus includes an imaging unit integrally formed with a light source, and a light amount adjusting unit that adjusts a light amount so as to keep luminance of a surface of a medium to be read constant based on a correction value of the light amount corresponding to an object-image distance.
Inventors:
Yoshida Takeda
Application Number:
JP2011133875A
Publication Date:
May 27, 2015
Filing Date:
June 16, 2011
Export Citation:
Assignee:
Pfu corporation
International Classes:
H04N1/10; G06T1/00; H04N1/04; H04N1/107
Domestic Patent References:
| JP10290327A | ||||
| JP2002057851A | ||||
| JP11017906A |
Foreign References:
| US20070081065 |
Attorney, Agent or Firm:
Kenta Ito
Takuya Kashima
Takuya Kashima