公开(公告)号：US07164810B2

公开(公告)日：2007-01-16

申请号：US10186320

申请日：2002-06-27

Applicant: Michael D. Schnee ,  Xiaoxun Zhu ,  Carl Harry Knowles

Inventor： Michael D. Schnee ,  Xiaoxun Zhu ,  Carl Harry Knowles

IPC: G06K9/22 ,  G06K7/10 ,  H04N1/24 ,  H04N1/46

CPC classification number: G06K9/2009 ,  H04N1/193 ,  H04N2201/04703 ,  H04N2201/04712 ,  H04N2201/04734 ,  H04N2201/04743

Abstract: An imaging device comprising a plurality of linear imaging arrays and image formation optics that provide field of views corresponding to the plurality of linear image arrays. At least one illumination module produces planar light illumination that substantially overlaps the field of views corresponding to the plurality of linear imaging arrays. Image processing circuitry performs image-based velocity estimation operations on composite 2-D images derived from sequential image capture operations. Velocity data is derived that represents an estimated velocity of the imaging device with respect to at least one target object disposed in the fields of view. The image processing circuitry also performs image transformation operations (or camera control operations) which are based upon the velocity data, to compensate for aspect ratio distortions in captured images that would otherwise result from variations in velocity of the imaging device with respect to the target object(s).

Abstract translation: 一种成像装置，包括多个线性成像阵列和图像形成光学器件，其提供对应于多个线性图像阵列的视野。 至少一个照明模块产生基本上与对应于多个线性成像阵列的视场重叠的平面光照明。 图像处理电路对从顺序图像捕获操作导出的复合二维图像执行基于图像的速度估计操作。 导出速度数据，其表示成像装置相对于设置在视场中的至少一个目标对象的估计速度。 图像处理电路还执行基于速度数据的图像变换操作（或相机控制操作），以补偿由成像装置相对于目标对象的速度变化而导致的捕获图像中的纵横比失真 （s）。

公开(公告)号：US07079265B2

公开(公告)日：2006-07-18

申请号：US09941838

申请日：2001-08-30

Applicant: Daisaku Horie

Inventor： Daisaku Horie

IPC: G06F15/00 ,  G06K1/00 ,  G06K15/00

CPC classification number: H04N1/047 ,  H04N1/387 ,  H04N2201/0434 ,  H04N2201/04703 ,  H04N2201/04737 ,  H04N2201/04787

Abstract: A distortion correction device performs pre-processing on an input image data of a double page spread document or the like and produces an edge image. Upper and lower ends of the document are detected from the produced edge image. From the detected upper and lower ends of the document, a relative position of an imaging unit with respect to the document is detected. An approximate distance from the imaging unit to the document, the relative position of the imaging unit and information about the ends of the document are used to calculate respective heights of points on the document. The input image data then undergoes geometric conversion correction by means of information about the heights. In this way, the distortion correction device can be provided capable of easily and accurately correcting distortion of the image due to nonuniform height of the surface of the object, i.e., document, regardless of imaging conditions.

公开(公告)号：US20040239999A1

公开(公告)日：2004-12-02

申请号：US10851158

申请日：2004-05-24

Applicant: Canon Kabushiki Kaisha

Inventor： Ken Tanimura ,  Hidekazu Shimomura

IPC: H04N001/04 ,  H04N001/46

CPC classification number: H04N1/506 ,  H04N1/12 ,  H04N1/1912 ,  H04N2201/04703 ,  H04N2201/04731 ,  H04N2201/04744 ,  H04N2201/04755 ,  H04N2201/04794 ,  H04N2201/04796

Abstract: Disclosed in an optical scanning apparatus which includes a deflecting unit comprised of a rotary polygon mirror for deflecting a light beam radiated from a light source unit, and a scanning optical system for guiding the light beam deflected by the deflecting unit to a surface to be scanned. In the optical scanning apparatus, individual elements are set such that a diameter of a circumscribed circle of the rotary polygon mirror, the number of deflecting facets of the rotary polygon mirror, an incident angle of the light beam on the deflecting facet at the time when the light beam scans a scanning center, a maximum swing angle of the deflecting facet at the time when an effective scanning range is scanned, and a magnification of the scanning optical system in a sub scanning section can satisfy a predetermined condition, thereby reducing an unevenness of pitches due to a deflecting-facet fall of the rotary polygon mirror, and readily achieving a highly precise and fine image.

Abstract translation: 公开了一种光学扫描装置，其包括偏转单元，该偏转单元包括用于偏转从光源单元辐射的光束的旋转多面镜，以及用于将由偏转单元偏转的光束引导到待扫描表面的扫描光学系统 。 在光学扫描装置中，各个元件被设定为使得旋转多面镜的外接圆的直径，旋转多面镜的偏转面的数量，偏转面上的光束的入射角 光束扫描扫描中心，扫描有效扫描范围时的偏转小面的最大摆动角度，并且副扫描部分中的扫描光学系统的倍率可以满足预定条件，从而减小不平坦度 由于旋转多面镜的偏转小面下降而产生的间距，并且容易实现高精度和精细的图像。

公开(公告)号：US06816624B1

公开(公告)日：2004-11-09

申请号：US09510733

申请日：2000-02-22

Applicant: Takashi Ebisawa ,  Bai Xuqiang ,  Hiroyuki Watanabe

Inventor： Takashi Ebisawa ,  Bai Xuqiang ,  Hiroyuki Watanabe

IPC: G06K940

CPC classification number: H04N1/409 ,  H04N1/047 ,  H04N1/1013 ,  H04N1/193 ,  H04N1/401 ,  H04N2201/02439 ,  H04N2201/0434 ,  H04N2201/04703 ,  H04N2201/04734 ,  H04N2201/04737 ,  H04N2201/04787 ,  H04N2201/04794

Abstract: An image processing apparatus corrects degradation of an image of a pair of spread pages of a bound book placed on a document table. The image processing apparatus includes a height obtaining unit which obtains a plurality of heights, above the document table, of a plurality of points of the pair of spread pages, based on a contour of the pair of spread pages which appears in the image, and an image correcting unit which corrects the degradation of the image based on the plurality of heights obtained by the height obtaining unit. The degradation may be unevenness of lightness, deformation, a blur, or the like.

Abstract translation: 图像处理装置校正放置在文档表上的装订书本的一对扩展页面的图像的劣化。 图像处理装置包括：高度获取单元，其基于图像中出现的一对扩展页面的轮廓，在文档表的上方获得多个扩展页面的多个点的高度;以及 图像校正单元，其基于由所述高度获取单元获得的所述多个高度来校正所述图像的劣化。 劣化可能是亮度不均匀，变形，模糊等。

公开(公告)号：US20040212849A1

公开(公告)日：2004-10-28

申请号：US10821993

申请日：2004-04-12

Applicant: NIKON CORPORATION

Inventor： Takahiro Ikeda

IPC: H04N001/04 ,  G03F003/10

CPC classification number: H04N1/047 ,  H04N2201/04703

Abstract: An image reading device includes a document reader that reads an image of a document, and a controller. The controller performs prescanning of the document with the document reader, and performs at least one of: (i) generating a preview image of the document, and (ii) determining a reading condition of the document. The controller receives a reading resolution to be used during main scanning. When the reading resolution for use during main scanning is higher than a reading resolution used for prescanning, the controller causes the main scanning of the document, and outputs a main scanning image of the document. When the reading resolution to be used during main scanning is not greater than the reading resolution used for prescanning, the controller, instead of causing main scanning, outputs an alternative image that is based on the read image obtained from the prescanning.

Abstract translation: 图像读取装置包括读取文档的图像的文档读取器和控制器。 控制器使用文档读取器执行对文档的预扫描，并且执行以下至少一个：（i）生成文档的预览图像，以及（ii）确定文档的读取状态。 控制器接收主扫描时使用的读取分辨率。 当主扫描期间使用的读取分辨率高于用于预扫描的读取分辨率时，控制器对文档进行主扫描，并输出文档的主扫描图像。 当在主扫描期间使用的读取分辨率不大于用于预扫描的读取分辨率时，控制器而不是进行主扫描，输出基于从预扫描获得的读取图像的替代图像。

公开(公告)号：US20040174574A1

公开(公告)日：2004-09-09

申请号：US10801654

申请日：2004-03-17

Applicant: DAINIPPON SCREEN MFG. CO., LTD.

Inventor： Tsuyoshi Okuda

IPC: H04N001/58

CPC classification number: H04N1/00015 ,  B41F33/0036 ,  B41F33/0081 ,  B41P2227/70 ,  B41P2233/51 ,  H04N1/00023 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/0005 ,  H04N1/00063 ,  H04N1/00087 ,  H04N1/00718 ,  H04N1/00737 ,  H04N1/00761 ,  H04N1/00774 ,  H04N2201/04703 ,  H04N2201/04718 ,  H04N2201/04732 ,  H04N2201/04767

Abstract: A reading time setting section (44) determines a read area for an imaging section (25) on the basis of color chart positional data (id). The imaging section (25) reads an image on printing paper during the reading time and readout image data (rd) is stored in an image data storage section (45). A reference mark detecting section (46) detects the positions of reference marks from the readout image data (rd). A color chart actual position calculation section (47) corrects a tilt of a color chart determined from the positions of the reference marks and calculates an actual position of each of color chart fields (cr). An image data readout section (48) reads out image data on a color chart field corresponding to the calculated actual position. At the same time, image data on a white color field immediately above the color chart field is also read out. A white color correction section (49) produces a white reference on the basis of the image data on the white color field and corrects the image data on the color chart field. A color chart information determination section (50) measures color chart information, such as a color density and a dot percentage, about each of the color chart fields. This printing press determines a reading time on the basis of the position of the color chart at the time of printing plate recording and thereby allows imaging of an area including the color chart on the printing paper being transported.

公开(公告)号：US06715417B2

公开(公告)日：2004-04-06

申请号：US09972244

申请日：2001-10-09

Applicant: Tsuyoshi Okuda

Inventor： Tsuyoshi Okuda

IPC: B41F516

CPC classification number: H04N1/00015 ,  B41F33/0036 ,  B41F33/0081 ,  B41P2227/70 ,  B41P2233/51 ,  H04N1/00023 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/0005 ,  H04N1/00063 ,  H04N1/00087 ,  H04N1/00718 ,  H04N1/00737 ,  H04N1/00761 ,  H04N1/00774 ,  H04N2201/04703 ,  H04N2201/04718 ,  H04N2201/04732 ,  H04N2201/04767

Abstract: A reading time setting section (44) determines a read area for an imaging section (25) on the basis of color chart positional data (id). The imaging section (25) reads an image on printing paper during the reading time and readout image data (rd) is stored in an image data storage section (45). A reference mark detecting section (46) detects the positions of reference marks from the readout image data (rd). A color chart actual position calculation section (47) corrects a tilt of a color chart determined from the positions of the reference marks and calculates an actual position of each of color chart fields (cr). An image data readout section (48) reads out image data on a color chart field corresponding to the calculated actual position. At the same time, image data on a white color field immediately above the color chart field is also read out. A white color correction section (49) produces a white reference on the basis of the image data on the white color field and corrects the image data on the color chart field. A color chart information determination section (50) measures color chart information, such as a color density and a dot percentage, about each of the color chart fields. This printing press determines a reading time on the basis of the position of the color chart at the time of printing plate recording and thereby allows imaging of an area including the color chart on the printing paper being transported.

公开(公告)号：US06624912B1

公开(公告)日：2003-09-23

申请号：US09132751

申请日：1998-08-12

Applicant: Han-Sin Kim

Inventor： Han-Sin Kim

IPC: G06K1500

CPC classification number: H04N1/128 ,  G06K9/32 ,  H04N1/053 ,  H04N1/1911 ,  H04N1/3878 ,  H04N2201/04703 ,  H04N2201/04717 ,  H04N2201/04732 ,  H04N2201/04787 ,  H04N2201/04793

Abstract: The reproduced image quality of a shuttle scanner is enhanced by automatically compensating for the scanner's assembly tolerances, using a method for correcting vertical alignment error in a shuttle scanner. The method includes the steps of: (a) initializing a block count of a document to be scanned to a value of N; (b) scanning the Nth block and rasterizing the scanned block into a dot image; (c) shifting each dot of the dot image formed by the rasterized block according to a set of pre-stored correction values; and (d) incrementing the block count and performing the steps (b) through (d) until reaching the end of the document being scanned. The set of pre-stored correction values is produced by the steps of: scanning at least one block of a reference pattern formed on the document to be scanned; comparing the scanned reference pattern with an ideal reference line to calculate a shift value for each dot of the scanned at least one block; and storing the calculated shift values in a memory device. The reference pattern is formed by a vertical line running across at least one block perpendicularly. The memory device installed in the shuttle scanner and programmed at the time of manufacture.

Abstract translation: 通过使用用于校正穿梭扫描器中的垂直对准误差的方法来自动补偿扫描仪的组装公差，从而增强了梭扫描仪的再现图像质量。 该方法包括以下步骤：（a）将要扫描的文档的块计数初始化为N值; （b）扫描第N个块并将扫描的块光栅化成点图像; （c）根据一组预先存储的校正值移动由光栅化块形成的点图像的每个点; 和（d）递增块计数并执行步骤（b）至（d），直到到达扫描的文档的末尾。 预先存储的校正值的集合通过以下步骤产生：扫描形成在待扫描的文档上的参考图案的至少一个块; 将扫描的参考图案与理想参考线进行比较，以计算所扫描的至少一个块的每个点的移位值; 以及将所计算的移位值存储在存储装置中。 参考图案由垂直于垂直于至少一个块的垂直线形成。 存储设备安装在梭式扫描仪中并在制造时编程。

公开(公告)号：US20030048466A1

公开(公告)日：2003-03-13

申请号：US10200138

申请日：2002-07-23

Inventor： Masakatsu Yamada ,  Toshiyuki Takano ,  Yasushi Ishida ,  Toshiaki Saito ,  Takashi Imai ,  Shigeyuki Sugiyama ,  Makoto Satake ,  Daigo Nakagawa ,  Naomi Nakamura ,  Nobuyuki Bannai ,  Takuma Suzuki ,  Seiya Fujinaga

IPC: B41J001/00 ,  G06K001/00

CPC classification number: H04N1/0473 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/0456 ,  H04N2201/04703 ,  H04N2201/0472 ,  H04N2201/04732 ,  H04N2201/04755 ,  H04N2201/04793

Abstract: An image reading device includes a memory unit for storing positional information of a sensor for moving by a drive unit to read an image of a document and a control unit for controlling the drive unit to move the sensor based on the positional information stored in the memory unit. The control unit drives the drive unit by an amount of driving sufficient for an image reading unit to move in a predetermined direction to abut the stop members, controls the drive unit to move the sensor so as to detect the position mark, and updates the positional information of the memory unit to a predetermined initial value based on the detection of the position mark by the sensor. The image reading device can store data of a reference position promptly even if a photo-interrupter is not provided when the data of the reference position is not stored in a memory unit.

公开(公告)号：US06493470B1

公开(公告)日：2002-12-10

申请号：US08665952

申请日：1996-06-19

Applicant: Hiroaki Ikeda ,  Toru Niki

Inventor： Hiroaki Ikeda ,  Toru Niki

IPC: G06K936

CPC classification number: G06K9/3283 ,  G06K2209/01 ,  G06T3/60 ,  H04N1/00681 ,  H04N1/00705 ,  H04N1/00718 ,  H04N1/00769 ,  H04N1/047 ,  H04N1/3878 ,  H04N2201/02425 ,  H04N2201/03162 ,  H04N2201/04703 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04743 ,  H04N2201/04787 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04793

Abstract: An image processor which corrects tilt of an input image without operator intervention. Projections of two partial images of an original are obtained at check points determined from input image information. A tilt angle of the original is obtained from a correction position of the projections of each partial area. The image is divided into belt-shaped small areas and shifted in accordance with the obtained tilt angle to form an image in which the tilt of the input image is corrected.

Abstract translation: 一种图像处理器，可在无需操作员干预的情况下校正输入图像的倾斜度。 在从输入图像信息确定的检查点处获得原件的两个部分图像的投影。 从每个部分区域的投影的校正位置获得原稿的倾斜角度。 该图像被分成带状的小区域，并根据获得的倾斜角度移动，以形成校正输入图像的倾斜度的图像。