公开(公告)号：EP0946043A2

公开(公告)日：1999-09-29

申请号：EP99200855.7

申请日：1999-03-19

Applicant: Agfa Corporation

Inventor： Larsen, David B. ,  Nolan John F. ,  Coppeta, David ,  Rolfe, Norman F.

IPC: H04N1/191

CPC classification number: B41J2/435 ,  G06K15/1238 ,  G06K2215/111 ,  H04N1/053 ,  H04N1/1135 ,  H04N1/12 ,  H04N1/1903 ,  H04N1/192 ,  H04N1/193 ,  H04N1/1934 ,  H04N2201/03162 ,  H04N2201/0471 ,  H04N2201/04712 ,  H04N2201/04732 ,  H04N2201/04744 ,  H04N2201/04755 ,  H04N2201/04787

Abstract: The present invention eliminates artifacts in an image formed using a plurality of imaging sources. Visible seams in the image are eliminated by randomizing the stitch point (18) between the scan lines (44, 46) produced by each imaging source. The randomization may be optimized by additionally applying a method for relocating the random stitch point (18) based on the data content of the scan line, adjacent scan lines, and other criteria. The present invention further compensates for in-scan and cross-scan errors caused by thermally induced errors, spinner synchronization errors, mechanical misalignment, and other factors associated with the use of a plurality of imaging systems (30). A photodetector system (120, 122, 124), comprising a mask (124) having a pair of triangular openings (128,128'), provides measurements of the in-scan and cross-scan errors.

Abstract translation: 本发明消除了使用多个成像源形成的图像中的伪影。 通过随机化由每个成像源产生的扫描线（44,46）之间的针迹点（18）来消除图像中的可见缝线。 基于扫描线的数据内容，相邻扫描线和其他标准，通过附加地应用用于重新定位随机针脚点（18）的方法，可以优化随机化。 本发明进一步补偿由热致误差，旋转器同步误差，机械失准和与使用多个成像系统（30）相关的其他因素引起的扫描内和交叉扫描误差。 包括具有一对三角形开口（128,128'）的掩模（124）的光电检测器系统（120,122,124）提供了扫描内扫描和交叉扫描误差的测量结果。

公开(公告)号：EP0488129B1

公开(公告)日：1998-11-04

申请号：EP91120087.1

申请日：1991-11-25

Applicant: CANON KABUSHIKI KAISHA

Inventor： Ishizuka, Haruo, c/o Canon Kabushiki Kaisha

IPC: H04N1/028

CPC classification number: H04N1/00976 ,  H04N1/02865 ,  H04N1/0312 ,  H04N1/0315 ,  H04N1/0318 ,  H04N2201/02404 ,  H04N2201/02431 ,  H04N2201/02441 ,  H04N2201/02452 ,  H04N2201/02456 ,  H04N2201/02462 ,  H04N2201/02468 ,  H04N2201/02474 ,  H04N2201/02481 ,  H04N2201/02483 ,  H04N2201/03112 ,  H04N2201/03116 ,  H04N2201/03129 ,  H04N2201/03141 ,  H04N2201/03145 ,  H04N2201/0315 ,  H04N2201/03158 ,  H04N2201/03162 ,  H04N2201/0317 ,  H04N2201/04796

Abstract: An image sensor has a supporting member for integrally supporting a reading system including illuminating means for illuminating an original document, a photoelectrically converting means and imaging means for imaging light reflected by the surface of the original document onto the photoelectrically converting means, and has a member disposed on the side surface of the supporting member. The image sensor has two or more substantially independent spaces formed in the supporting member. The illuminating means, the imaging means and the photoelectrically converting means are accommodated in one of the spaces.

公开(公告)号：EP0441535B1

公开(公告)日：1996-09-18

申请号：EP91300778.7

申请日：1991-01-31

Applicant: Hewlett-Packard Company

Inventor： Stein, Irene F. ,  Webb, Steven L. ,  Boyd, David W.

IPC: H04N1/04

CPC classification number: H04N1/047 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/02416 ,  H04N2201/02439 ,  H04N2201/03162 ,  H04N2201/04703 ,  H04N2201/0471 ,  H04N2201/0472 ,  H04N2201/04724 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04734 ,  H04N2201/04739 ,  H04N2201/04755 ,  H04N2201/04787 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04793 ,  H04N2201/04794

Abstract: A document (11) to be scanned is corner referenced on a transparent platen (12), with the document's image facing down. The platen defines an X-Y coordinate system matrix. A moving line of light (24) extends in the X direction and illuminates the document's image, line by line, as the line of light moves in the Y direction. The line of light that is thus reflected from the document is sensed by a linear CCD sensor array (27) having a large number of individual sensor cells (28) arranged in a line that effectively extends in the X direction. Each cell of the CCD array defines an individual pixel (PEL) within the line of light that is reflected from the document. A reflection target (54) is located at a known position relative to the platen's referencing corner, to be scanned prior to scanning the document. Sensing of the target enables (1) the X direction physical position of the CCD sensor array relative to the referencing corner to be accurately determined (86), and (2) the Y direction physical position of the line of light relative to the the referencing corner to be accurately determined (87), both parameters being determined prior to scanning of the document.

公开(公告)号：EP0651552A2

公开(公告)日：1995-05-03

申请号：EP94307943.4

申请日：1994-10-27

Applicant: XEROX CORPORATION

Inventor： Curry, Douglas N.

IPC: H04N1/047 ,  H04N1/40

CPC classification number: H04N1/4055 ,  H04N1/047 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/02425 ,  H04N2201/02439 ,  H04N2201/03162 ,  H04N2201/04787 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04794

Abstract: A system for correcting registration errors in a printer (Fig.1). The system includes a memory device (82,82¹) for storing sequential rasters of image data and an interpolator (60) coupled to the memory device, the interpolator using the rasters of image data from the memory device in conjunction with multiplication factors to calculate an interpolated resample value. The system also includes addressing circuitry (86,86¹) for providing address signals (99,111) to the memory device, the addressing circuitry also providing the multiplication factors (XFRACT, YFRACT) to the two dimensional interpolator. Finally, included is a correction device for providing adjustment values to the addressing circuitry, the adjustment values being used to correct for the registration errors.

Abstract translation: 一种用于校正打印机中的注册错误的系统（图1）。 该系统包括用于存储图像数据的连续光栅的存储器件（82,82 <1）和耦合到存储器件的内插器（60），所述内插器使用来自存储器件的图像数据的栅格以及乘法因子 以计算内插重采样值。 该系统还包括用于向存储器件提供地址信号（99,111）的寻址电路（86,86 <1>），寻址电路还向二维内插器提供乘法因子（XFRACT，YFRACT）。 最后，包括用于向寻址电路提供调整值的校正装置，用于校正注册误差的调整值。

公开(公告)号：EP0441535A3

公开(公告)日：1992-12-16

申请号：EP91300778.7

申请日：1991-01-31

Applicant: Hewlett-Packard Company

Inventor： Stein, Irene F. ,  Webb, Steven L. ,  Boyd, David W.

IPC: H04N1/04

CPC classification number: H04N1/047 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/02416 ,  H04N2201/02439 ,  H04N2201/03162 ,  H04N2201/04703 ,  H04N2201/0471 ,  H04N2201/0472 ,  H04N2201/04724 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04734 ,  H04N2201/04739 ,  H04N2201/04755 ,  H04N2201/04787 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04793 ,  H04N2201/04794

Abstract: A document (11) to be scanned is corner referenced on a transparent platen (12), with the document's image facing down. The platen defines an X-Y coordinate system matrix. A moving line of light (24) extends in the X direction and illuminates the document's image, line by line, as the line of light moves in the Y direction. The line of light that is thus reflected from the document is sensed by a linear CCD sensor array (27) having a large number of individual sensor cells (28) arranged in a line that effectively extends in the X direction. Each cell of the CCD array defines an individual pixel (PEL) within the line of light that is reflected from the document. A reflection target (54) is located at a known position relative to the platen's referencing corner, to be scanned prior to scanning the document. Sensing of the target enables (1) the X direction physical position of the CCD sensor array relative to the referencing corner to be accurately determined (86), and (2) the Y direction physical position of the line of light relative to the the referencing corner to be accurately determined (87), both parameters being determined prior to scanning of the document.

公开(公告)号：EP0444137A1

公开(公告)日：1991-09-04

申请号：EP90900486.0

申请日：1989-11-14

Applicant: MSC TECHNOLOGIES, INC.

Inventor： MASSOUDI, Firooz

IPC: G06F3 ,  G06T1 ,  H04N1

CPC classification number: G06F3/0317 ,  G06F3/03544 ,  H04N1/047 ,  H04N1/107 ,  H04N2201/02425 ,  H04N2201/02439 ,  H04N2201/03162 ,  H04N2201/0422 ,  H04N2201/0471 ,  H04N2201/04715 ,  H04N2201/04717 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04787 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04794

Abstract: A method for orienting a dual mouse optical scanner on an orthogonal grid pattern comprising the steps of (a) placing a dual mouse scanner on a grid pattern at a small angle to the vertical lines of the grid pattern and commencing motion detection with the two mice, (b) setting the coordinate position of each mouse at (0,0), (c) rotating the scanner in a predetermined manner while measuring the vertical distance on the grid pattern between the two mice for each new position of the scanner, (d) determining an average scanner position amongst all scanner positions having the same maximum vertical grid distance between the mice, and (e) establishing the coordinate position of one mouse at the average scanner position as the origin of a coordinate system in the memory of a computer in communication with the scanner and the vertical line closest to the origin and the coordinate position of the other mouse as the vertical axis of the coordinate system.

公开(公告)号：EP0284043A3

公开(公告)日：1989-10-18

申请号：EP88104648.6

申请日：1988-03-23

Applicant: Dainippon Screen Mfg. Co., Ltd.

Inventor： Mitsuki, Kiyoomi Dainippon Screen Mfg. Co., Ltd

IPC: H04N1/18 ,  H04N1/04

CPC classification number: H04N1/1903 ,  H04N1/047 ,  H04N1/193 ,  H04N1/1934 ,  H04N2201/02425 ,  H04N2201/02441 ,  H04N2201/03162 ,  H04N2201/04703 ,  H04N2201/0472 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04787 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04793 ,  H04N2201/04796

Abstract: An amount of a read position error in the subscanning direction between line image sensors (CCD1, CCD2, CCD3) is obtained by scanning and reading a correction read pattern (6a, 6b). In scanning of an original, output image signals from the line image sensors (CCD1, CCD2, CCD3) are relatively delayed by a line number corresponding to the amount of the read position error between the line image sensors (CCD1, CCD2, CCD3), to correct time difference, caused by the read position error, in information reading in the boundary portion of the line image sensors.

公开(公告)号：EP0267456A2

公开(公告)日：1988-05-18

申请号：EP87115141.1

申请日：1987-10-16

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Tsujioka, Hiroshi ,  Yatsuzuka, Yasufumi ,  Yoneda, Shigeo

IPC: H04N1/04 ,  H04N1/10

CPC classification number: H04N1/047 ,  H04N1/00204 ,  H04N1/107 ,  H04N1/3876 ,  H04N2201/0049 ,  H04N2201/0082 ,  H04N2201/03162 ,  H04N2201/0414 ,  H04N2201/0426 ,  H04N2201/04703 ,  H04N2201/0471 ,  H04N2201/04715 ,  H04N2201/04724 ,  H04N2201/04729 ,  H04N2201/04732 ,  H04N2201/04734 ,  H04N2201/04787 ,  H04N2201/04789

Abstract: An image reader of manual scan type is disclosed. The image reader comprises a reading head for scanning a document manually, memory means for storing image data read by the reading head, write control means for writing said image data into the memory means and a printer. The image reader further comprises image data processing means for adjusting image data obtained by the image sensor so as to form a real and necessary image upon writing image data into the memory means.

Abstract translation: 公开了一种手动扫描类型的图像读取器。 图像读取器包括用于手动扫描文档的读取头，用于存储由读取头读取的图像数据的存储装置，用于将所述图像数据写入存储装置的写入控制装置和打印机。 图像读取器还包括图像数据处理装置，用于调整由图像传感器获得的图像数据，以便在将图像数据写入存储装置中时形成实际和必要的图像。

公开(公告)号：EP0150029A3

公开(公告)日：1988-03-02

申请号：EP85100308

申请日：1985-01-14

Applicant: TEKTRONIX, INC.

Inventor： Culter, Robert Gordon

IPC: H04N01/36

CPC classification number: H04N1/047 ,  H04N1/06 ,  H04N1/1911 ,  H04N2201/02441 ,  H04N2201/03162 ,  H04N2201/04703 ,  H04N2201/0471 ,  H04N2201/0472 ,  H04N2201/04724 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04734 ,  H04N2201/04737 ,  H04N2201/04787 ,  H04N2201/04791 ,  H04N2201/04796

Abstract: A document scanner compensates for mechanical misalignment between a document and a photosensitive array by storing pixel information from the array and timing the output of such information in accordance with stored offset values which represent the mechanical misalignment for successive relative positions of the document and of the array.

公开(公告)号：TW389355U

公开(公告)日：2000-05-01

申请号：TW086210024

申请日：1997-06-18

Applicant: Oce─科技公司

Inventor： 荷姆斯.彼得約翰尼斯.卡拉森斯

IPC: G06K

CPC classification number: H04N1/193 ,  H04N1/047 ,  H04N2201/02425 ,  H04N2201/03162 ,  H04N2201/04703 ,  H04N2201/04715 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04732 ,  H04N2201/04749 ,  H04N2201/04787 ,  H04N2201/04789 ,  H04N2201/04791 ,  H04N2201/04793

Abstract: 一種以光學方式掃描文件之裝置，可對應該文件之局部光學密度而產生數位影像資料，包含：一固定玻璃板，其一端界定成一原始平面；傳輸機構，用於在該原始平面中以一個次要掃描方向傳輸該文件；至少兩個位於一個主要掃描方向之線性感測器，每一個包含一陣列之光電轉換器並配備有一透鏡，在感測器上映射一位於原始平面之線性觀察區，該感測器之觀察區大致上係排列呈直線並在其主要掃描方向之側端部份地重疊；一對準元件，在距原始平面之短距離下，以位於透鏡及該原始平面間，如此其在原始平面上之垂直投影會位於兩個相鄰觀察區域重疊端之內，其中該對準元件具有一形狀，因此對於每一感測器而言，在其座落的觀察區域中，對準元件於主要掃描方向會有一寬度，其會隨次要方向之變動而連續增加或減少。

Abstract in simplified Chinese: 一种以光学方式扫描文档之设备，可对应该文档之局部光学密度而产生数码影像数据，包含：一固定玻璃板，其一端界定成一原始平面；传输机构，用于在该原始平面中以一个次要扫描方向传输该文档；至少两个位于一个主要扫描方向之线性传感器，每一个包含一数组之光电转换器并配备有一透镜，在传感器上映射一位于原始平面之线性观察区，该传感器之观察区大致上系排列呈直线并在其主要扫描方向之侧端部份地重叠；一对准组件，在距原始平面之短距离下，以位于透镜及该原始平面间，如此其在原始平面上之垂直投影会位于两个相邻观察区域重叠端之内，其中该对准组件具有一形状，因此对于每一传感器而言，在其座落的观察区域中，对准组件于主要扫描方向会有一宽度，其会随次要方向之变动而连续增加或减少。