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    • 1. 发明授权
    • Method and apparatus for correcting color registration error
    • 用于校正颜色配准误差的方法和装置
    • US5406066A
    • 1995-04-11
    • US88017
    • 1993-07-06
    • Michael J. SteinleGreg A. Degi
    • Michael J. SteinleGreg A. Degi
    • H04N1/028H04N1/48H01J40/14
    • H04N1/488
    • A photosensor device which comprises a first photosensor array having a first predetermined number of pixels for generating a first data signal indicative of a first color component image of an object which is imaged thereon; a second photosensor array having a second predetermined number of pixels for generating a second data signal indicative of a second color component image of the object which is imaged thereon; and color registration error correction means operatively associated with the photosensor array for correcting color registration error due to a predetermined difference in image size between the first color component image and the second color component image.
    • 一种光传感器装置,其包括具有第一预定数量的像素的第一光传感器阵列,用于产生指示其上成像的物体的第一颜色分量图像的第一数据信号; 第二光传感器阵列,具有第二预定数量的像素,用于产生指示被成像在其上的物体的第二颜色分量图像的第二数据信号; 以及与光传感器阵列可操作地相关联的颜色配准误差校正装置,用于由于第一颜色分量图像和第二颜色分量图像之间的图像尺寸的预定差异来校正颜色配准误差。
    • 5. 发明授权
    • Image scanner with compensation for magnification changes
    • 图像扫描仪补偿放大倍率
    • US06172772B2
    • 2001-01-09
    • US09127776
    • 1998-07-31
    • Michael J. SteinleDan S. Johnson
    • Michael J. SteinleDan S. Johnson
    • H04N100
    • H04N1/401
    • A process for compensation for real time changes of magnification in an optics system for an image scanner. Targets having high-contrast edges, on both sides of an image to be scanned, are scanned along with the image. If magnification changes, the number of pixels between the targets may change. The pixels between the targets are filtered to generate a fixed number of pixels. Photosensor sensitivity compensation values may be separated into factory compensation values and scanner pre-scan compensation values. Factory compensation values are applied before filtering. Differences between factory compensation values and pre-scan compensation values are applied after filtering.
    • 用于补偿用于图像扫描器的光学系统中的放大倍率的实时变化的处理。 在要扫描的图像的两侧具有高对比度边缘的目标与图像一起扫描。 如果放大变化,则目标之间的像素数可能会改变。 目标之间的像素被过滤以产生固定数量的像素。 光电传感器灵敏度补偿值可以分为出厂补偿值和扫描器预扫描补偿值。 过滤前应用工厂补偿值。 过滤后应用出厂补偿值和预扫描补偿值之间的差异。