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    • 2. 发明授权
    • Method for providing image illumination calibration for an imaging apparatus
    • 用于为成像装置提供图像照明校准的方法
    • US07995114B2
    • 2011-08-09
    • US11954754
    • 2007-12-12
    • Anthony Michael KingMark Eric Miller
    • Anthony Michael KingMark Eric Miller
    • H04N5/235H01L27/00H01L1/42
    • H04N1/401H04N1/4076H04N5/3572H04N5/3655
    • A method for providing image illumination calibration includes: generating a plurality of images of a calibration target at a plurality of exposure levels, each image of the plurality of images being represented by a total pixel area; identifying a plurality of zones of the total pixel area, each zone of the plurality of zones corresponding to a particular image of the plurality of images at a particular exposure level of the plurality of exposure levels, with each zone representing a pixel sub-area that excludes saturated pixels; combining the plurality of zones for the plurality of images of the calibration target to generate a final calibration image; and generating a shading table to correct the final calibration image to obtain a uniform image of the calibration target over the total pixel area, the shading table including gain and offset values associated with each pixel of the total pixel area.
    • 一种用于提供图像照明校准的方法包括:以多个曝光级别生成校准目标的多个图像,所述多个图像中的每个图像由总像素区域表示; 识别所述总像素区域的多个区域,所述多个区域中的每个区域对应于所述多个曝光水平的特定曝光水平下的所述多个图像的特定图像,其中每个区域表示像素子区域, 排除饱和像素; 组合用于校准目标的多个图像的多个区域以生成最终校准图像; 以及生成阴影表以校正最终校准图像以在整个像素区域上获得校准目标的均匀图像,该着色表包括与总像素区域的每个像素相关联的增益和偏移值。
    • 9. 发明授权
    • Method and apparatus for contact image scanning
    • 接触式图像扫描的方法和装置
    • US08335025B2
    • 2012-12-18
    • US12480774
    • 2009-06-09
    • Anthony Michael KingMark Eric Miller
    • Anthony Michael KingMark Eric Miller
    • H04N1/46H04N1/00
    • H04N1/486H04N1/02845H04N1/0311
    • A contact image scanner comprises a light source, pixel sensors generating a signal, a lens focusing reflected light onto the pixel sensors, a color matrix filter filtering the reflected light, and a signal processing circuit generating a digital image. The method provides pixel sensors for generating a signal in response to incident light, projects light from a light source onto a document in a sequential fashion, reflects the light onto the pixel sensors, filters the reflected light with a color matrix filter, and processes the signal to generate the digital image. With the method and apparatus, each scan line of the document is illuminated with white light only once. The pixel sensors corresponding to red, green, and blue colors of each pixel of the scan line read the pixel of the scan line substantially at the same time in a substantially overlapping manner in a scan line direction without overlapping in an orthogonal direction.
    • 接触图像扫描器包括光源,产生信号的像素传感器,将反射光聚焦到像素传感器上的透镜,滤光反射光的彩色矩阵滤波器以及产生数字图像的信号处理电路。 该方法提供用于响应于入射光产生信号的像素传感器,以顺序的方式将光从光源投射到文档上,将光反射到像素传感器上,用彩色矩阵滤波器对反射光进行滤波,并处理 信号产生数字图像。 利用该方法和装置,文件的每条扫描线仅用白光照射一次。 对应于扫描线的每个像素的红色,绿色和蓝色的像素传感器基本上在扫描线方向上基本上重叠的方式基本上同时扫描扫描线的像素,而不会在正交方向上重叠。
    • 10. 发明申请
    • METHOD AND APPARATUS FOR CONTACT IMAGE SCANNING
    • 接触式图像扫描的方法和装置
    • US20100309533A1
    • 2010-12-09
    • US12480774
    • 2009-06-09
    • Anthony Michael KingMark Eric Miller
    • Anthony Michael KingMark Eric Miller
    • H04N1/46H04N1/04
    • H04N1/486H04N1/02845H04N1/0311
    • A method and apparatus are disclosed for scanning documents using a contact image scanner. The imaging apparatus comprises a light source for illuminating the document, a plurality of pixel sensors for generating a signal in response to light incident thereon, a lens for focusing light from the light source reflected from the document onto the plurality of pixel sensors, a color matrix filter disposed between the pixel sensors and the light reflected from the document, and a circuit for processing the signal from the plurality of pixel sensors to generate the digital image of the document. The method comprises the steps of providing a plurality of pixel sensors for generating a signal in response to light incident thereon, projecting light from a light source onto the document in a sequential fashion along the length dimension thereof, reflecting the light projected onto the document onto the plurality of pixel sensors, filtering the light from the light source with a color matrix filter, and processing the signal from the plurality of pixel sensors to generate the digital image of the document.
    • 公开了一种使用接触式图像扫描器扫描文件的方法和装置。 成像装置包括用于照亮原稿的光源,用于响应于入射到其上的光产生信号的多个像素传感器,用于将来自原稿反射的光源的光聚焦到多个像素传感器上的透镜, 设置在像素传感器和从文档反射的光之间的矩阵滤波器,以及用于处理来自多个像素传感器的信号以生成文档的数字图像的电路。 该方法包括以下步骤:提供多个像素传感器,用于响应于入射到其上的光而产生信号,沿着其长度尺寸依次将光从光源投射到文件上,将投影到文件上的光反射到 所述多个像素传感器用彩色矩阵滤波器对来自光源的光进行滤波,并且处理来自多个像素传感器的信号以产生文档的数字图像。