公开(公告)号：US20100296137A1

公开(公告)日：2010-11-25

申请号：US12784105

申请日：2010-05-20

Applicant: Martin Georg Zahnert ,  Erik Fonseka ,  Alexander Ilic

Inventor： Martin Georg Zahnert ,  Erik Fonseka ,  Alexander Ilic

IPC: H04N1/04

CPC classification number: H04N1/047 ,  H04N1/107 ,  H04N1/1071 ,  H04N1/3876 ,  H04N2201/04703 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04731 ,  H04N2201/04743

Abstract: A computer peripheral that may operate as a scanner. The scanner captures image frames as it is moved across an object. The image frames are formed into a composite image based on computations in two processes. In a first process, fast track processing determines a coarse position of each of the image frames based on a relative position between each successive image frame and a respective preceding image determine by matching overlapping portions of the image frames. In a second process, fine position adjustments are computed to reduce inconsistencies from determining positions of image frames based on relative positions to multiple prior image frames. Processing of the image frames may allow a scan of an object to be suspended and resumed automatically when a user lifts the scanner, by deleting out of focus image frames and matching subsequent image frames to previously stored image frames.

Abstract translation: 可以作为扫描仪操作的计算机外围设备。 扫描仪在跨越对象移动时捕获图像帧。 基于两个过程中的计算，将图像帧形成为合成图像。 在第一过程中，快速跟踪处理基于通过匹配图像帧的重叠部分来确定每个连续图像帧和相应的前一图像之间的相对位置来确定每个图像帧的粗略位置。 在第二过程中，计算精细位置调整以减少基于相对于多个先前图像帧的相对位置来确定图像帧的位置的不一致性。 当用户抬起扫描仪时，图像帧的处理可以允许对象的扫描被暂停并自动恢复，通过删除对焦图像帧并将后续图像帧匹配到先前存储的图像帧。

公开(公告)号：USRE41364E1

公开(公告)日：2010-06-01

申请号：US11433909

申请日：2006-05-11

Applicant: Yu-Fen Tsai ,  Te-Chih Chang

Inventor： Yu-Fen Tsai ,  Te-Chih Chang

IPC: H04N1/04

CPC classification number: H04N1/00018 ,  H04N1/00002 ,  H04N1/00031 ,  H04N1/00045 ,  H04N1/00053 ,  H04N1/00063 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/04703 ,  H04N2201/04717 ,  H04N2201/04749

Abstract: A test image has a black bias on a white background. The black bias is a line set at about 45 degrees to the scan lines of a scanner. Boundary points of the scanned bias are found. A regression line is calculated from the positions of the boundary points. Differences in the positions of adjacent boundary points, together with the slope reciprocal of the regression line, are used to determine error values. The error values are compared with a gate value to determine if there are any occurrences of scan line misalignment.

Abstract translation: 测试图像在白色背景上具有黑色偏差。 黑色偏压是与扫描仪的扫描线大约45度的线。 找到扫描偏差的边界点。 从边界点的位置计算回归线。 相邻边界点的位置差与回归线的斜率倒数一起用于确定误差值。 将误差值与门值进行比较，以确定是否存在任何扫描线未对准的发生。

公开(公告)号：US20100073737A1

公开(公告)日：2010-03-25

申请号：US12552434

申请日：2009-09-02

Applicant: Takashi HONDA ,  Tetsuhiro SHIBATA ,  Shinichi YABUKI ,  Yoshiki NAKAZAWA

Inventor： Takashi HONDA ,  Tetsuhiro SHIBATA ,  Shinichi YABUKI ,  Yoshiki NAKAZAWA

IPC: H04N1/04

CPC classification number: H04N1/1017 ,  H04N1/0473 ,  H04N1/193 ,  H04N2201/02425 ,  H04N2201/04703 ,  H04N2201/04715 ,  H04N2201/04731 ,  H04N2201/04755 ,  H04N2201/04791

Abstract: An image reading apparatus includes a carriage having mounted thereon a linear light source and an image sensor and a reference pattern member disposed at a reference position located toward the first direction from a home position. The current location of the carriage is judged relatively to first and second areas that are divided by a boundary defined in advance at a location toward the first direction from the reference position. The first area is located toward the first direction and the second area is located toward the second direction. Immediately after the power is turned ON, current location information indicating whether the carriage is currently located in the first area or the second area is read from the nonvolatile memory. The carriage is first moved to the reference position and then moved a predetermined distance in the second direction, so that the carriage is duly positioned at the home position.

Abstract translation: 图像读取装置包括：托架，其上安装有线性光源;以及图像传感器和参考图案部件，其设置在从原位置朝向第一方向定位的基准位置。 相对于从基准位置朝向第一方向的位置预先限定的边界的第一和第二区域相对地判断托架的当前位置。 第一区域朝向第一方向，第二区域朝向第二方向。 在电源接通之后，立即从非易失性存储器读取指示托架当前位于第一区域或第二区域中的当前位置信息。 首先将滑架移动到参考位置，然后沿第二方向移动预定距离，使得滑架适当地定位在原始位置。

公开(公告)号：US07668406B2

公开(公告)日：2010-02-23

申请号：US11653788

申请日：2007-01-16

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

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

IPC: G06K9/22 ,  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, which analyzes pixel data values of a plurality of composite 2-D images each derived from sequential image capture operations of a corresponding one linear imaging array to derive velocity data that represents an estimated velocity of the imaging device with respect to at least one target object disposed in the fields of view. Preferably, the image processing circuitry also produces a first image of portions of the target object(s), the first image having substantially constant aspect ratio, utilizing image transformation operations (or camera control operations) that are based upon the velocity data, to thereby compensate for aspect ratio distortions that would otherwise result from variations in velocity of the imaging device with respect to the target object(s). In addition, the image processing circuitry preferably carries out image-based horizontal jitter estimation and compensation operations, which estimate the horizontal jitter of the imaging device relative to the target object(s) over the image capture operations from which the first image is derived and transform the first image utilizing shift operations that are based upon such estimated horizontal jitter to produce a second image of portions of the target object(s) which compensates for horizontal jitter distortion that would otherwise result therefrom. The first image or second image (or image derived from sharpening the first or second images) is preferably subject to image-based bar code detection operations and/or OCR operations, or output for display to a display device.

公开(公告)号：US20090190188A1

公开(公告)日：2009-07-30

申请号：US12227199

申请日：2007-05-14

Applicant: Jérémy Delhomme ,  Jöel-Yann Fourre ,  Marina Pouet ,  Francois Rieul

Inventor： Jérémy Delhomme ,  Jöel-Yann Fourre ,  Marina Pouet ,  Francois Rieul

IPC: H04N1/04

CPC classification number: H04N1/0473 ,  H04N1/12 ,  H04N2201/04703 ,  H04N2201/0471 ,  H04N2201/04717 ,  H04N2201/04725 ,  H04N2201/04732 ,  H04N2201/04787

Abstract: The invention relates to a process for digitising document in which the document (4) is feed driven in front of a sensor (2) by a drive mechanism (3) comprising a plurality of elements (31-36) which come into contact with the document (4) while it is fed, wherein the sensor (2) is capable of generating digital data from an image on the document (4), wherein the process comprises steps consisting of: —detecting when the contact is established or broken between the document (4) and one of the elements (32), —correcting the digital data by applying to the data a distortion correction function which takes into account the position of the sensor (2) with respect to the image when the detection takes place.

Abstract translation: 本发明涉及一种用于数字化文件的方法，其中文件（4）通过驱动机构（3）在传感器（2）前面进给的驱动装置，驱动机构（3）包括多个元件（31-36） 文档（4），其中所述传感器（2）能够从所述文档（4）上的图像生成数字数据，其中所述处理包括以下步骤： - 当所述传感器（2）在所述文档 文件（4）和元件（32）中的一个， - 通过向数据应用在发生检测时考虑到传感器（2）相对于图像的位置的失真校正功能来校正数字数据。

公开(公告)号：US20090002781A1

公开(公告)日：2009-01-01

申请号：US12205007

申请日：2008-09-05

Applicant: Chun-Hung Luo

Inventor： Chun-Hung Luo

IPC: H04N1/04

CPC classification number: H04N1/0473 ,  H04N1/00681 ,  H04N1/00689 ,  H04N1/00702 ,  H04N1/00737 ,  H04N1/00745 ,  H04N1/00782 ,  H04N1/12 ,  H04N2201/04703 ,  H04N2201/04731 ,  H04N2201/04739

Abstract: An apparatus for detecting front edge of a document and determining home position of an image scanning module has a detecting light source near an outlet end of a document feeding track and aligned with an image reader of the image scanning module. The detecting light source emits a detecting light to be received by the image reader. By detecting whether the detecting light is received by the image reader, the front edge of the document can be detected to activate the image scanning module. And it can also determine whether or not the image scanning module has arrived on a home position.

Abstract translation: 用于检测文档的前边缘并确定图像扫描模块的原始位置的装置具有在文档馈送轨道的出口端附近的检测光源并与图像扫描模块的图像读取器对准。 检测光源发射由图像读取器接收的检测光。 通过检测图像读取器是否接收到检测光，可以检测文档的前边缘以激活图像扫描模块。 并且还可以确定图像扫描模块是否到达原始位置。

公开(公告)号：US20080266620A1

公开(公告)日：2008-10-30

申请号：US11872043

申请日：2007-10-15

Applicant: Chen-Tsai Tsai ,  Yan-Mei Chen ,  Hsueh-Chou Hsu

Inventor： Chen-Tsai Tsai ,  Yan-Mei Chen ,  Hsueh-Chou Hsu

IPC: H04N1/04

CPC classification number: H04N1/1017 ,  H04N2201/044 ,  H04N2201/04703 ,  H04N2201/04715 ,  H04N2201/04731 ,  H04N2201/04749 ,  H04N2201/04755 ,  H04N2201/04791

Abstract: A scanner includes a housing, a transparent platen disposed on the housing for positioning a document, and a calibration pattern formed on a side of the transparent platen. The calibration pattern includes an arc having a first point and a second point. The scanner further includes an optical engine installed inside the housing for scanning the document and the calibration pattern with movement in a first direction, and a control module installed inside the housing for controlling the optical engine to move to a scan start position according to the first point and the second point of the calibration pattern scanned by the optical engine and a radius of curvature of the arc.

Abstract translation: 扫描器包括壳体，设置在壳体上用于定位文件的透明压板以及形成在透明压板的一侧上的校准图案。 校准图案包括具有第一点和第二点的弧。 扫描仪还包括安装在壳体内的光学引擎，用于沿着第一方向移动来扫描原稿和校准图案，以及安装在外壳内部的控制模块，用于控制光学引擎根据第一方向移动到扫描开始位置 点和由光学引擎扫描的校准图案的第二点和弧的曲率半径。

公开(公告)号：US07015940B1

公开(公告)日：2006-03-21

申请号：US09694502

申请日：2000-10-24

Applicant: Kazumi Kimura

Inventor： Kazumi Kimura

IPC: B41J2/435

CPC classification number: G02B26/127 ,  H04N1/047 ,  H04N1/113 ,  H04N1/1135 ,  H04N1/12 ,  H04N2201/04703 ,  H04N2201/0471 ,  H04N2201/04729 ,  H04N2201/04744 ,  H04N2201/04755 ,  H04N2201/04767 ,  H04N2201/04789 ,  H04N2201/04794 ,  H04N2201/04798

Abstract: A scanning optical apparatus includes a light source capable of being modulated, a deflecting element for deflecting and scanning a beam emitted from the light source, a scanning optical element for imaging the deflected beam into a spot shape on a scanned surface, and an optical element for synchronous detection for directing the deflected beam from the deflecting element to a sensor to take the timing of image writing beginning. The scanning optical apparatus further inclueds a scanning position detecting device for making the optical axis of the optical element for synchronous detection and the principal ray of the beam from the deflecting element for taking the timing of image writing beginning coincident with each other, and detecting the position of the beam at a point having at least one image height separate from the optical axis of the scanning optical element.

Abstract translation: 扫描光学装置包括能够被调制的光源，用于偏转和扫描从光源发射的光束的偏转元件，用于将被偏转的光束成像为扫描表面上的光斑形状的扫描光学元件，以及光学元件 用于将偏转光束从偏转元件引导到传感器以进行图像写入的定时开始的同步检测。 扫描光学装置还包括扫描位置检测装置，用于使用于同步检测的光学元件的光轴和来自偏转元件的光束的主光线用于使图像写入的定时开始彼此一致，并且检测 在具有与扫描光学元件的光轴分开的至少一个图像高度的点处的光束的位置。

公开(公告)号：US20060028698A1

公开(公告)日：2006-02-09

申请号：US10711496

申请日：2004-09-21

Applicant: Yen-Cheng Chen ,  Ruei-Jang Liou ,  Chung-Chih Luo

Inventor： Yen-Cheng Chen ,  Ruei-Jang Liou ,  Chung-Chih Luo

IPC: H04N1/04

CPC classification number: H04N1/0473 ,  H04N1/0464 ,  H04N1/10 ,  H04N1/12 ,  H04N1/193 ,  H04N2201/04703 ,  H04N2201/04715 ,  H04N2201/0472 ,  H04N2201/04732 ,  H04N2201/04755

Abstract: An automatic document feeder scanner includes a housing, an automatic document feeder, a predetermined pattern installed on a bottom surface of the automatic document feeder, a scanning module, and a processor capable of analyzing image data of the predetermined pattern and of determining a distance between the scanning module and an ADF scan position.

Abstract translation: 自动送纸器扫描器包括外壳，自动送稿器，安装在自动送纸器底面上的预定图案，扫描模块和处理器，能够分析预定图案的图像数据，并确定 扫描模块和ADF扫描位置。

公开(公告)号：US20050175239A1

公开(公告)日：2005-08-11

申请号：US11054396

申请日：2005-02-10

Applicant: Tadashi Araki ,  Maki Shinoda

Inventor： Tadashi Araki ,  Maki Shinoda

IPC: G06K9/32 ,  G06K9/34 ,  H04N1/047 ,  H04N1/387

CPC classification number: H04N1/047 ,  G06K9/3283 ,  H04N1/387 ,  H04N2201/02439 ,  H04N2201/0434 ,  H04N2201/04703 ,  H04N2201/04743 ,  H04N2201/04787 ,  H04N2201/04794

Abstract: An apparatus, system, method, and computer program product is disclosed, each capable of correcting distortion in a scanned image, using at least a character line extracted from the scanned image. The character line is extracted based on a circumscribed rectangle, representing the vertical component of the character. The distortion in the scanned image is corrected based on the length of the circumscribed rectangle in the main scanning direction.

Abstract translation: 公开了一种装置，系统，方法和计算机程序产品，其能够使用至少从扫描图像提取的字符行来校正扫描图像中的失真。 基于表示字符的垂直分量的外接矩形来提取字符行。 基于主扫描方向上的外接矩形的长度来校正扫描图像中的失真。