发明名称 |
Medium identification device, image forming apparatus, method of identifying medium, and computer program product |
摘要 |
A medium identification device identifies a type of a recording medium used for image formation. The medium identification device includes: a two-dimensional image sensor that captures an image of the recording medium; and an identifying unit that obtains a glossiness evaluation value indicating glossiness of the recording medium, a surface roughness evaluation value indicating surface roughness of the recording medium, and a coloring evaluation value indicating coloring of the recording medium, using image data of a specular reflection region reflecting specular reflection light from the recording medium and image data of a diffused reflection region reflecting diffused reflection light from the recording medium, the regions being in the image of the recording medium, and identifies the type of the recording medium by combining determination using the glossiness evaluation value, determination using the surface roughness evaluation value, and determination using the coloring evaluation value. |
申请公布号 |
US9358813(B2) |
申请公布日期 |
2016.06.07 |
申请号 |
US201514812045 |
申请日期 |
2015.07.29 |
申请人 |
RICOH COMPANY, LTD. |
发明人 |
Yokozawa Suguru;Satoh Nobuyuki;Yorimoto Mamoru;Morita Kenji;Fujii Masayuki;Horikawa Daisaku |
分类号 |
B41J29/393;B41J11/00 |
主分类号 |
B41J29/393 |
代理机构 |
Oblon, McClelland, Maier & Neustadt, L.L.P |
代理人 |
Oblon, McClelland, Maier & Neustadt, L.L.P |
主权项 |
1. A medium identification device that identifies a type of a recording medium used for image formation, the medium identification device comprising:
a two-dimensional image sensor that captures an image of the recording medium; and an identifying unit that obtains a glossiness evaluation value indicating glossiness of the recording medium, a surface roughness evaluation value indicating surface roughness of the recording medium, and a coloring evaluation value indicating coloring of the recording medium, using image data of a specular reflection region reflecting specular reflection light from the recording medium and image data of a diffused reflection region reflecting diffused reflection light from the recording medium, the regions being in the image of the recording medium, and identifies the type of the recording medium by combining determination using the glossiness evaluation value, determination using the surface roughness evaluation value, and determination using the coloring evaluation value. |
地址 |
Tokyo JP |