Image reading apparatus for reading a bookform document placed on a document table in face-up state
    31.
    发明授权
    Image reading apparatus for reading a bookform document placed on a document table in face-up state 失效
    用于以面朝上的状态读取放置在文件台上的书本文件的图像读取装置

    公开(公告)号:US06345763B1

    公开(公告)日:2002-02-12

    申请号:US09220768

    申请日:1998-12-28

    Abstract: An image reading apparatus which reads out a document, such as as a book, placed face-up and opened on a document table. The apparatus includes an image reading device for reading out the document image placed on the document table, a mirror for imaging the document upper side plane, a projecting device which projects marks onto the document and mirror, and an image processing unit. A document characterized portion imaged on the mirror is read out by the image reading device and the image processing unit rectifies image distortion of the read out document image based on the characterized portion.

    Abstract translation: 一种图像读取装置,其读出诸如书籍的文件,面朝上放置在文件台上。 该装置包括用于读出放置在文件台上的文件图像的图像读取装置,用于对文件上侧平面进行成像的反射镜,将标记投影到文档和反射镜上的投影装置,以及图像处理单元。 由图像读取装置读出在镜子上成像的文件特征部分,图像处理部根据特征部分对读出的原稿图像的图像失真进行整流。

    Apparatus for reading an image and method of extracting an image
    32.
    发明授权
    Apparatus for reading an image and method of extracting an image 失效
    用于读取图像的装置和提取图像的方法

    公开(公告)号:US06198547B1

    公开(公告)日:2001-03-06

    申请号:US09039838

    申请日:1998-03-16

    Applicant: Shinya Matsuda

    Inventor: Shinya Matsuda

    CPC classification number: H04N1/00795 H04N1/4095 H04N2201/0434

    Abstract: An apparatus for reading an image of the obverse side of a thin sheet includes a light source for emitting a light for illuminating the obverse side of the thin sheet. The light contains two fractions having different wave lengths from each other. When the light has been reflected on the thin sheet, first and second image pickup means receive one and the other of the aforesaid two fractions respectively. In order to be free of the adverse effect of characters, etc. printed on the reverse side of the thin sheet and seen therethrough on the obverse side, an signal processing system is operable such that image information on the obverse side of the thin sheet alone is extracted from image data outputted from the first and second image pickup means respectively.

    Abstract translation: 用于读取薄片的正面的图像的设备包括用于发射用于照亮薄片的正面的光的光源。 光包含彼此具有不同波长的两个分数。 当光已经在薄片上反射时,第一和第二图像拾取装置分别接收前述两个部分中的一个和另一个。 为了没有印刷在薄片的反面并在其正面看到的字符等的不利影响,信号处理系统可操作使得仅在薄片单面的正面上的图像信息 从分别从第一和第二图像拾取装置输出的图像数据中提取出来。

    Image reading apparatus for reading book-like documents
    33.
    发明授权
    Image reading apparatus for reading book-like documents 失效
    用于阅读书本文件的图像读取装置

    公开(公告)号:US6041146A

    公开(公告)日:2000-03-21

    申请号:US599380

    申请日:1996-02-09

    CPC classification number: H04N1/401

    Abstract: An image reader for reading book-like documents placed on a document platen in a face upward condition, said image reader comprises a shading reference panel provided beside the document platen which is white in color and of uniform density, an image reading device which reads the document platen on which the book-like document is placed and the shading reference panel, and outputs image data, a height detector which detects a height distribution of the book-like document, an illuminance detector which detects an illuminance irregularity in accordance with the image data corresponding to the shading reference panel, calculator which calculates shading correction data in accordance with the height distribution and the illuminance irregularity on the shading reference panel and, shading corrector which corrects the illuminance irregularity of the image data corresponding to the book-like document in accordance with the shading correction data.

    Abstract translation: 一种图像阅读器,用于以面朝上的状态读取放置在原稿台上的书本文件,所述图像读取器包括设置在原稿台上的白色和均匀密度的着色参考面板,读取该图像读取装置的图像读取装置 放置书本文件的原稿台板和阴影参考面板,并输出图像数据,检测书本文件的高度分布的高度检测器,根据图像检测照度不规则的照度检测器 对应于阴影参考面板的数据,根据阴影参考面板上的高度分布和照度不规则来计算阴影校正数据的计算器,以及校正与该类似书面文档相对应的图像数据的照度不规则性的阴影校正器 根据阴影校正数据。

    Image reading apparatus having a function for rectifying an image
distortion caused by a curvature of a document surface and a method for
executing the same
    34.
    发明授权
    Image reading apparatus having a function for rectifying an image distortion caused by a curvature of a document surface and a method for executing the same 失效
    具有校正由文件表面的曲率引起的图像失真的功能的图像读取装置及其执行方法

    公开(公告)号:US06014470A

    公开(公告)日:2000-01-11

    申请号:US882110

    申请日:1997-06-25

    Applicant: Shinya Matsuda

    Inventor: Shinya Matsuda

    Abstract: An image reading apparatus having a function for rectifying an image distortion caused by a curvature of a document surface, wherein the image distortion is rectified by duplicating image data that is a line of pixels in accordance with a varied amount of heights of a document surface, and a data conversion that is a image processing procedure in which the number of bits for pixels is reduced, is executed for the rectified image data. Data conversion elements whose number is the same as the maximum duplicated number "N", are arranged in a data conversion device, and the image data of a line to be duplicated arc input to the data conversion elements whose number is the same as duplicated number "n" of the line (n.ltoreq.N), and then, n-line image data which is processed in n data conversion elements, are stored in a memory. Thereby, reducing a memory capacity needed for the distortion rectification can be achieved without lowering picture quality.

    Abstract translation: 一种图像读取装置,其具有对由文件表面的曲率引起的图像失真进行校正的功能,其中通过根据文档表面的高度的变化量复制作为像素行的图像数据来整形图像失真, 并且对于经整流的图像数据执行作为减少像素的位数的图像处理过程的数据转换。 数据与最大复制数“N”相同的数据转换元件被布置在数据转换装置中,并且要复制的行的图像数据被输入到数字与重复数相同的数据转换元件 行(n

    Apparatus and method for determining the size of a page size in an image
reader
    35.
    发明授权
    Apparatus and method for determining the size of a page size in an image reader 失效
    用于确定图像读取器中的页面大小的大小的装置和方法

    公开(公告)号:US5987163A

    公开(公告)日:1999-11-16

    申请号:US882109

    申请日:1997-06-25

    Applicant: Shinya Matsuda

    Inventor: Shinya Matsuda

    CPC classification number: H04N1/00681 H04N1/1013 H04N2201/0434

    Abstract: The present invention relates to an image reader well suited for reading for reading bound documents such books and magazines, the image reader comprises a document table to support a document to be read, an image sensor to convert a document image to electrical signals, and a signal processing unit to quantize and output said electrical signals to external devices. The signal processing unit is constructed so as to be capable of reading the edge surfaces in a direction perpendicular to the lateral direction of a document in an open-faced state and is provided with a size detector to detect the document edge positions on bilateral sides of the open-faced document in a lateral direction, a page size calculator to calculate the length of one page in a lateral direction of said open-faced document based on the read information of the edge surfaces and document edge position detected by said document size detector, and output range setting device to set the image output range in accordance with the length of one page calculated by the page size calculator.

    Abstract translation: 本发明涉及一种非常适合于读取书籍和杂志上的装订文档的图像读取器,该图像读取器包括用于支持要读取的文档的文档表,将文档图像转换为电信号的图像传感器,以及 信号处理单元,将所述电信号量化并输出到外部设备。 信号处理单元被构造成能够在开放状态下沿与文档的横向方向垂直的方向读取边缘表面,并且设置有尺寸检测器,用于检测文档边缘位置在两侧的文档边缘位置 基于所述文件尺寸检测器检测到的边缘表面的读取信息和文档边缘位置来计算所述开放式文档的横向方向上的一页长度的页面尺寸计算器, ,以及输出范围设定装置,根据页面大小计算器计算出的一页的长度设定图像输出范围。

    Image reading apparatus
    36.
    发明授权
    Image reading apparatus 失效
    图像读取装置

    公开(公告)号:US5847884A

    公开(公告)日:1998-12-08

    申请号:US890352

    申请日:1997-07-09

    Abstract: An image reading apparatus which reads document surfaces of open book-like documents placed on a document platen in a face upward condition, the image reading apparatus comprises; a first detector which detects a height distribution of a document surface in a main scanning direction, a second detector which detects a height distribution of the document surface in a sub-scanning direction, and a direction discrimination device for discriminating whether a placement direction of the document is a main scanning direction or a sub-scanning direction based on the height distributions.

    Abstract translation: 一种图像读取装置,其以面朝上的状态读取放置在原稿台上的打开的书本文件的文件表面,图像读取装置包括: 第一检测器,其检测文件表面在主扫描方向上的高度分布;检测文档表面在副扫描方向上的高度分布的第二检测器;以及方向判别装置,用于鉴别文档表面的扫描方向 文档是基于高度分布的主扫描方向或副扫描方向。

    Image reading device and density correction method for read images
    37.
    发明授权
    Image reading device and density correction method for read images 失效
    图像读取装置和读取图像的浓度校正方法

    公开(公告)号:US5808756A

    公开(公告)日:1998-09-15

    申请号:US785215

    申请日:1997-01-17

    Applicant: Shinya Matsuda

    Inventor: Shinya Matsuda

    CPC classification number: H04N1/401

    Abstract: An image reading apparatus for book-like document includes a height detecting device which detects a height of the document, a luminance detecting device which detects a luminance of a background portion of the document image, a gloss calculating device which calculates gloss of a surface of the document in accordance with the height and the luminance, a luminance calculating device which calculates luminance corresponding to a background portion of the document image in accordance with the gloss and the height, a selecting device which selects either the detected luminance or the calculated luminance, and a density correcting means for correcting a density of the image data in accordance with said selected luminance.

    Abstract translation: 用于书本文件的图像读取装置包括检测文档的高度的高度检测装置,检测文档图像的背景部分的亮度的亮度检测装置,计算表面的光泽度的光泽计算装置 根据高度和亮度的文档,根据光泽度和高度来计算与文档图像的背景部分相对应的亮度的亮度计算装置,选择检测到的亮度或计算出的亮度的选择装置, 以及浓度校正装置,用于根据所述选择的亮度校正图像数据的浓度。

    Document scanner for book document
    39.
    发明授权
    Document scanner for book document 失效
    文件扫描器

    公开(公告)号:US5764379A

    公开(公告)日:1998-06-09

    申请号:US529365

    申请日:1995-09-18

    Abstract: An image reading apparatus which reads book-like documents placed on a document platen in a face upward condition. A first detector detects the height of the document surface by the shape of a side surface of the document, and a second detector detects the height of the document by the shape of the document surface. A discrimination device detects abnormal height data detected by the detectors, and distortion of image data output from an imaging device is corrected using height data determined to have no abnormality.

    Abstract translation: 一种图像读取装置,其以面朝上的状态读取放置在原稿台上的书本文件。 第一检测器通过文件的侧表面的形状检测原稿表面的高度,第二检测器通过文件表面的形状检测文档的高度。 识别装置检测由检测器检测的异常高度数据,并且使用被确定为没有异常的高度数据校正从成像装置输出的图像数据的失真。

    Red emitting long decay phosphors
    40.
    发明授权
    Red emitting long decay phosphors 失效
    红色发射长衰减荧光粉

    公开(公告)号:US5650094A

    公开(公告)日:1997-07-22

    申请号:US466570

    申请日:1995-06-06

    CPC classification number: C09K11/7702 C09K11/7703

    Abstract: Long decay phosphors are disclosed that are comprised of rare-earth activated divalent titanates. In particular, the long decay phosphors are comprised of(Ca.sub.(1-a-b) Pr.sub.a M.sub.b)O.TiO.sub.2wherein0.00001.ltoreq.a.ltoreq.0.1 and0.0.ltoreq.b.ltoreq.0.3and M is Zn and/or Mg.

    Abstract translation: 公开了由稀土活化的二价钛酸盐组成的长衰减磷光体。 特别地,长衰减荧光体由(Ca(1-a-b)PraMb)O.TiO 2组成,其中0.00001

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