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    • 1. 发明授权
    • Automatic image sharpening in an electronic imaging system
    • 电子成像系统中的自动图像锐化
    • US5696850A
    • 1997-12-09
    • US576738
    • 1995-12-21
    • Kenneth A. ParulskiMichael S. Axman
    • Kenneth A. ParulskiMichael S. Axman
    • G06T5/00
    • G06T5/003G06T5/20G06T2207/20192
    • Digital reproductions of any size made from images scanned from film or taken by an electronic camera are optimally sharpened in a system-wide operation. The images are captured by an imaging device having an electronic imager and subsequently reproduced in a reproduction device, both imaging and reproduction devices having respective modulation transfer functions. Initially, the imaging device modulation transfer function and the reproduction device modulation transfer function are stored in separate devices. After an image is captured with the imaging device, a system modulation transfer function is generated from the imaging device modulation transfer function and the reproduction device modulation transfer function. Then a sharpening function is generated from the system modulation transfer function and the sharpening filter function is applied to the image captured by the imaging device in order to sharpen the image.
    • 在电影摄影机中扫描的图像或由电子照相机拍摄的任何尺寸的数码复制品在系统范围的操作中得到最佳的锐化。 图像由具有电子成像器的成像装置捕获,随后在再现装置中再现具有各自调制传递函数的成像和再现装置。 最初,成像设备调制传递函数和再现设备调制传递函数被存储在单独的设备中。 在利用成像装置捕获图像之后,从成像装置调制传递函数和再现装置调制传递函数产生系统调制传递函数。 然后,从系统调制传递函数产生锐化功能,并且将锐化滤波器功能应用于由成像装置捕获的图像,以便锐化图像。
    • 2. 发明授权
    • Method and apparatus for adaptively reducing interline flicker of
TV-displayed image
    • 用于自适应地减少电视显示图像的间线闪烁的方法和装置
    • US5428456A
    • 1995-06-27
    • US669832
    • 1991-03-15
    • Kenneth A. ParulskiMichael S. Axman
    • Kenneth A. ParulskiMichael S. Axman
    • H04N1/21H04N5/253H04N5/44H04N5/93
    • H04N1/32128H04N5/253H04N7/0132H04N2201/3242H04N2201/3243H04N2201/3254H04N2201/3277Y10S348/91
    • An image analysis and flicker filter control mechanism is incorporated into the image processing software of a photofinishing workstation for the purpose of analyzing the high frequency content of the image. As a result of this analysis, there is stored on a write once optical compact disc, in the header field associated with each image, an interlace "flicker code" representative of the extent, if any, to which the vertical dimension of the image is to be subjected to a low pass filtering operation in the course of reading out the image from the disc for application to a playback device, such as a raster scan TV display. The flicker code may be a binary value code or a multiple bit value controls the degree of vertical lowpass filtering of only those images which exhibit interlace flicker, and only during playback onto interlaced TV displays, thereby reducing the flicker of an image reproduced by an interlaced TV display without reducing print sharpness.
    • 为了分析图像的高频内容,将图像分析和闪烁滤波器控制机制并入到照相洗印加工工作站的图像处理软件中。 作为该分析的结果,存储在与每个图像相关联的头部字段中的一次写入光盘上,代表图像的垂直尺寸(如果有的话)的间隔“闪烁码” 在从光盘读出图像的过程中进行低通滤波操作以应用于诸如光栅扫描TV显示器的回放设备。 闪烁码可以是二进制值码,或者多位值仅控制那些呈现交错闪烁的那些图像的垂直低通滤波的程度,并且仅在重叠到隔行扫描的TV显示器时,从而减少由隔行扫描再现的图像的闪烁 电视显示,而不会降低打印清晰度。