公开(公告)号：US20100214623A1

公开(公告)日：2010-08-26

申请号：US12569949

申请日：2009-09-30

Applicant: Mitsuo SHIMIZU

Inventor： Mitsuo SHIMIZU

IPC: H04N1/00

CPC classification number: H04N1/193 ,  H04N1/0312 ,  H04N1/1017 ,  H04N1/12 ,  H04N2201/046

Abstract: There is provided an image reading device including: a light source; an image forming unit including plural optical members that receive reflection light reflected from the document and form an image from the received light; plural light receiving units that receive the light formed into an image by the image forming unit and convert the light to an electric signal; a storing unit that stores plural kinds of correction data; a detecting unit that detects an amount of relative positional shift between a light receiving unit and the image forming unit for each light receiving unit; and a correcting unit that selects correction data suitable for each light receiving unit from the plural kinds of correction data stored in the storing unit based on the detected amount of relative positional shift, and corrects the electric signal converted by each light receiving unit based on the correction data.

Abstract translation: 提供了一种图像读取装置，包括：光源; 图像形成单元，包括接收从文件反射的反射光并从接收的光形成图像的多个光学部件; 多个光接收单元，其接收由图像形成单元形成为图像的光，并将光转换为电信号; 存储单元，存储多种校正数据; 检测单元，其检测每个光接收单元的光接收单元和图像形成单元之间的相对位置偏移量; 以及校正单元，其基于检测到的相对位置偏移量，从存储在存储单元中的多种校正数据中选择适合于每个光接收单元的校正数据，并且根据所检测的相对位置偏移量来校正由每个光接收单元转换的电信号 校正数据。

公开(公告)号：US20130070309A1

公开(公告)日：2013-03-21

申请号：US13368669

申请日：2012-02-08

Applicant: Norikazu SAKAI ,  Mitsuo SHIMIZU

Inventor： Norikazu SAKAI ,  Mitsuo SHIMIZU

IPC: H04N1/04

CPC classification number: H04N1/4076 ,  H04N1/401 ,  H04N1/4097

Abstract: An image reading apparatus includes a reading unit, an extraction unit and a generation unit. The reading unit outputs reference plate reading information. The extraction unit sets a pixel of the reference plate reading information as a notice pixel and repeatedly extracts one of the notice pixel as a target pixel until the number of the target pixels is more than a predetermined value when a ratio of a pixel value of the notice pixel to an initial value is more than a predetermined range. The generation unit generates correction information by substituting a pixel value of the target pixel with a correction value using the initial value when the extraction unit extracts all pixels of the reference plate reading information, and generates correction information by setting the pixel values of all the pixels as the initial value when the extraction unit does not extract all the pixels.

Abstract translation: 图像读取装置包括读取单元，提取单元和生成单元。 读取单元输出参考板读取信息。 提取单元将参考板读取信息的像素设置为通知像素，并且当目标像素的数量大于预定值时，重复地将通知像素中的一个提取为目标像素，直到目标像素的数量大于预定值 通知像素到初始值大于预定范围。 当提取单元提取参考板读取信息的所有像素时，生成单元通过使用初始值用校正值代替目标像素的像素值来生成校正信息，并且通过设置所有像素的像素值来生成校正信息 作为提取单元未提取所有像素的初始值。