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    • 3. 发明授权
    • Film scanner with scaling signal
    • 胶片扫描仪,带缩放信号
    • US06262762B1
    • 2001-07-17
    • US08767734
    • 1996-12-16
    • Wolfgang GünzelPeter Bachmann
    • Wolfgang GünzelPeter Bachmann
    • H04N336
    • H04N5/253H04N9/11H04N17/002H04N17/02
    • A scanner, in which the contents of an film frame (1) are converted into a video signal by opto-electronic converters (4), this video signal being post-processed in a video processing stage (12). The operation of post-processing the video signal may be monitored by an oscilloscope (25). In order that this monitoring can be carried out in a simple manner, a scaling signal is inserted into the video signal before the video processing stage (12) so that the video signal to be monitored and a scaling signal line are simultaneously displayed on the screen of, for example, the oscilloscope (25).
    • 一种扫描器,其中胶片帧(1)的内容通过光电转换器(4)转换成视频信号,该视频信号在视频处理级(12)中进行后处理。 后处理视频信号的操作可以由示波器(25)监视。 为了能够以简单的方式进行该监视,在视频处理级(12)之前将视频信号插入到视频信号中,使得要监视的视频信号和缩放信号线同时显示在屏幕上 例如示波器(25)。
    • 4. 发明授权
    • Video signal color correction based on color hue
    • 基于色调的视频信号颜色校正
    • US5436673A
    • 1995-07-25
    • US197162
    • 1994-02-16
    • Peter BachmannDieter Poetsch
    • Peter BachmannDieter Poetsch
    • H04N9/64H04N9/68
    • H04N9/643
    • Memories are provided for correction signal values respectively for a hue signal, a saturation signal and a luminance signal derived from a digital color television signal. Each of the memories consists of two memory units which are alternately used for storing new correction signal values and for reading out previously stored correction signal values. The corrected signal values are modified by a key signal, if present, in each case and are then supplied to calculation circuits to each of which a signal derived from the saturation signal is applied. The resulting fully corrected hue and saturation signals are converted back into color difference signals, but the finally corrected luminance signal requires no conversion. The raw correction signal values are supplied from a computer into which control magnitudes can be entered to produce them. These control magnitudes can be used to define corner points of a deflected line function from which the correction signals are derived. Monitors and cursors are used to facilitate correct entry of control magnitudes.
    • 分别为色调信号,饱和度信号和从数字彩色电视信号导出的亮度信号的校正信号值提供存储器。 每个存储器由两个存储单元组成,这两个存储器单元交替地用于存储新的校正信号值并用于读出先前存储的校正信号值。 校正的信号值在每种情况下由键信号(如果存在)被修改,然后被提供给计算电路,其中每一个由饱和信号导出的信号被施加。 所产生的完全校正的色调和饱和度信号被转换回色差信号,但最后校正的亮度信号不需要转换。 原始校正信号值从可以输入控制量的计算机提供以产生它们。 这些控制幅度可用于定义偏转线函数的角点,从中导出校正信号。 监视器和光标用于方便控制量的正确输入。
    • 5. 发明授权
    • Video signal color correction with dual function memories and color
window
    • 视频信号颜色校正与双功能记忆和彩色窗口
    • US5355225A
    • 1994-10-11
    • US843552
    • 1992-02-28
    • Peter BachmannDieter Poetsch
    • Peter BachmannDieter Poetsch
    • H04N9/64
    • H04N9/643
    • Memories are provided for correction signal values respectively for a hue signal, a saturation signal and a luminance signal derived from a digital color television signal. Each of the memories consists of two memory units which are alternately used for storing new correction signal values and for reading out previously stored correction signal values. The corrected signal values are modified by a key signal, if present, in each case and are then supplied to calculation circuits to each of which a signal derived from the saturation signal is applied. The resulting fully corrected hue and saturation signals are converted back into color difference signals, but the finally corrected luminance signal requires no conversion. The correction signal values are supplied from a computer into which control magnitudes can be entered to produce them. These control magnitudes can be used to define corner points of a deflected line function from which the raw correction signals are derived. Monitors and cursors are used to facilitate correct entry of control magnitudes.
    • 分别为色调信号,饱和度信号和从数字彩色电视信号导出的亮度信号的校正信号值提供存储器。 每个存储器由两个存储单元组成,这两个存储器单元交替地用于存储新的校正信号值并用于读出先前存储的校正信号值。 校正的信号值在每种情况下由键信号(如果存在)被修改,然后被提供给计算电路,其中每一个由饱和信号导出的信号被施加。 所产生的完全校正的色调和饱和度信号被转换回色差信号,但最后校正的亮度信号不需要转换。 校正信号值从可以输入控制量的计算机提供以产生它们。 这些控制幅度可以用于定义偏转线函数的角点,从中导出原始校正信号。 监视器和光标用于方便控制量的正确输入。
    • 6. 发明授权
    • Circuit apparatus for automatic correction of TV color balance
    • 电视色彩平衡自动校正的电路设备
    • US5040054A
    • 1991-08-13
    • US556127
    • 1990-07-20
    • Dieter SchmidtPeter Bachmann
    • Dieter SchmidtPeter Bachmann
    • H04N9/73
    • H04N9/73
    • For picture elements (pixels) having a luminance value in a mid-range of luminance magnitude and a color saturation smaller than a predetermined threshold value a correction signal is obtained by integration of the color saturation value followed by multiplication by the difference between an actual luminance signal and a gradation distorted luminance signal. Threshold values at the boundaries of the mid-range of the luminance signal are determined in a manner dependent upon the extreme values that appear from time to time in the luminance signal. The stored maximum and minimum values of the luminance signals are respectively decremented and incremented at frame intervals until replaced by a new maximum or minimum value establishing a new maximum or minimum.
    • 对于具有在亮度值的中间范围内的亮度值和小于预定阈值的色彩饱和度的图像元素(像素),通过将色饱和度积分后乘以实际亮度之间的差异来获得校正信号 信号和灰度失真的亮度信号。 在亮度信号的中间范围的边界处的阈值以取决于亮度信号中不时出现的极值的方式来确定。 存储的亮度信号的最大值和最小值分别递减并以帧间隔递增,直到由新的最大值或最小值建立新的最大值或最小值。