Title:
IMAGE-READING DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/147528
Kind Code:
A1
Abstract:
An image-reading device is provided with an FB glass, a sensor module (102) having a light source and a plurality of sensors, and an image-processing unit (204) for preparing correction data used in shading correction and performing shading correction on an image signal using the correction data. The plurality of sensors are arranged in a main scanning direction and are configured so as to form a one-line image signal. The image-processing unit (204) acquires second black data by causing an image signal of a reference sheet disposed on the FB glass to be acquired by the plurality of sensors when the light source is illuminated, prepares black correction data on the basis of the second black data, and corrects density unevenness in the image caused by interference between the image signals from the plurality of sensors by performing shading correction using the black correction data.
Inventors:
FUSAYASU HIROTSUGU
MATSUBARA RYO
INOKUCHI KATSUO
HIROTA TATSUYA
TUTIYA YUUICHI
MATSUBARA RYO
INOKUCHI KATSUO
HIROTA TATSUYA
TUTIYA YUUICHI
Application Number:
PCT/JP2016/000331
Publication Date:
September 22, 2016
Filing Date:
January 25, 2016
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H04N1/19; G06T1/00; H04N1/401
Foreign References:
| JPH02254867A | 1990-10-15 | |||
| JP2012070089A | 2012-04-05 | |||
| JP2002101278A | 2002-04-05 |
Attorney, Agent or Firm:
KAMATA, Kenji et al. (JP)
Kenji Kamata (JP)
Kenji Kamata (JP)
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