发明名称 |
Image reading device and image reading method |
摘要 |
An image reading device includes an arbitrating unit configured to obtain read data on a main-scan-line-by-main-scan-line basis from a first image sensor that reads one side of a document and read data on a main-scan-line-by-main-scan-line basis from a second image sensor that reads the other side of the document. The arbitrating unit transfers a piece of read data obtained from the first image sensor and the second image sensor alternately. The device also includes a reducing unit configured to perform reduction in image data including the read data in a sub-scanning direction in a way that thins on the transferred pieces of read data corresponding respectively to main scan lines; an image processing unit configured to perform image processing on the read data having undergone the thinning; and a transfer unit configured to transfer the read data having undergone the image processing to another unit. |
申请公布号 |
US8792144(B2) |
申请公布日期 |
2014.07.29 |
申请号 |
US201213709547 |
申请日期 |
2012.12.10 |
申请人 |
Ricoh Company, Limited |
发明人 |
Shinya Mitsuo |
分类号 |
G06K15/02;H04N1/393 |
主分类号 |
G06K15/02 |
代理机构 |
Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P. |
代理人 |
Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P. |
主权项 |
1. An image reading device comprising:
a two-side-data arbitrating unit configured to obtain read data on a main-scan-line-by-main-scan-line basis from a first image sensor that reads one side of a document and read data on a main-scan-line-by-main-scan-line basis from a second image sensor that reads the other side of the document, the two-side-data arbitrating unit transferring a piece of read data obtained from the first image sensor and a piece of read data obtained from the second image sensor alternately; a sub-scanning-data reducing unit configured to perform reduction in image data including the read data in a sub-scanning direction in a way that discards the transferred piece of read data corresponding to a main scan line according to setting to perform thinning on the pieces of read data corresponding respectively to main scan lines; an image processing unit configured to perform image processing on the read data having undergone the thinning; and a transfer unit configured to transfer the read data having undergone the image processing to another unit. |
地址 |
Tokyo JP |