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1. 发明授权

US08102419B1 Method and apparatus for improved scanning of film 失效
标题翻译：改进薄膜扫描的方法和装置
公开(公告)号：US08102419B1
公开(公告)日：2012-01-24
申请号：US08066996
申请日：1993-05-24
申请人： David E. Holland , Gavin W. Schutz
发明人： David E. Holland , Gavin W. Schutz
IPC分类号： H04N5/253 , H04N3/36
CPC分类号： H04N5/253
摘要： An improved method and apparatus for scanning of anamorphic film utilizes increased number of scans and combination of scan lines for video output generation. A progressive raster scan is made of the film and stored in a frame memory. The spacing between the scan lines is made smaller than for the conventional scanning of an anamorphic image. In the preferred embodiment, the spacing between the scan lines for a 2:1 anamorphic image equals the spacing for scanning of a non-anamorphic image. The scan lines are retrieved from the memory and combined, preferably with the two nearest neighbors of the scan line. Optionally, the combined lines are weighted, preferably with the center scan line having larger weight. Subsequent video output lines are formed by repeating the process. Progressive video output or interlace output is provided as desired.
摘要翻译：用于扫描变形膜的改进的方法和装置利用增加的扫描数量和用于视频输出生成的扫描线的组合。逐行光栅扫描由胶卷制成并存储在帧存储器中。扫描线之间的间距比对于变形图像的常规扫描小。在优选实施例中，用于2:1变形图像的扫描线之间的间隔等于非变形图像的扫描间隔。扫描线从存储器检索并且优选地与扫描线的两个最近的邻居组合。可选地，组合线被加权，优选地具有较大重量的中心扫描线。随后的视频输出线是通过重复该过程形成的。根据需要提供逐行视频输出或交错输出。

2. 发明授权

US5412433A Secondary color corrector 失效
标题翻译：二次色彩校正器
公开(公告)号：US5412433A
公开(公告)日：1995-05-02
申请号：US101352
申请日：1993-08-02
申请人： David E. Holland , Gavin W. Schutz
发明人： David E. Holland , Gavin W. Schutz
IPC分类号： H04N9/68 , H04N9/64 , H04N9/69
CPC分类号： H04N9/68
摘要： An improved method and apparatus for color correction normalizes two of the three color signals as a function of the third. In the preferred embodiment, an image comprising red, green and blue (RGB) signals are converted to a luminance Y signal, a saturation signal and a hue signal. The luminance and saturation signals are normalized as a function of hue. In the most preferred embodiment, for all fully saturated colors, the luminance values are normalized to a value of 0.5, and the saturation values to unity for all values of hue. The normalized values of saturation and luminance are utilized with the hue value in a secondary color corrector. The color corrected values of saturation and luminance are denormalized as a function of color corrected hue. Optionally, the color corrected luminance, saturation and hue may be converted to RGB signals for output. In one aspect of this invention, the normalized luminance signal is not used for relatively small values of saturation. In another aspect of this invention, multiple color correction regions are provided on an image. Overlapping regions are assigned priorities.
摘要翻译：用于颜色校正的改进的方法和装置将三个颜色信号中的两个归一化为第三个的函数。在优选实施例中，包括红色，绿色和蓝色（RGB）信号的图像被转换为亮度Y信号，饱和信号和色调信号。亮度和饱和度信号被归一化为色相的函数。在最优选的实施例中，对于所有完全饱和的颜色，将亮度值归一化为0.5的值，并且对于所有色相值，饱和度值为1。饱和度和亮度的归一化值与二次色彩校正器中的色调值一起使用。饱和度和亮度的色彩校正值作为色彩校正色调的函数被非规范化。可选地，色彩校正的亮度，饱和度和色调可以被转换为RGB信号用于输出。在本发明的一个方面，归一化亮度信号不用于较小的饱和度值。在本发明的另一方面，在图像上提供多个颜色校正区域。重叠区域被分配优先级。

3. 发明授权

US07139029B2 Methods and apparatus for correction for 2-3 field patterns 失效
标题翻译： 2-3场模式校正方法和装置
公开(公告)号：US07139029B2
公开(公告)日：2006-11-21
申请号：US10430608
申请日：2003-05-05
申请人： David E. Holland , Gavin W. Schutz , Merle C. Sharp
发明人： David E. Holland , Gavin W. Schutz , Merle C. Sharp
IPC分类号： H04N7/01 , H04N11/20
CPC分类号： H04N7/0112
摘要： Systems and methods are provided for allowing a user to correct a discontinuous 2-3 field sequence within a disrupted video signal. A 2-3 field pattern fixer can be operated in a one-pass mode and/or a two-pass mode. In the one-pass mode, the disrupted video signal is analyzed to generate correction information, which is used to correct the disrupted video signal as it passes through the 2-3 pattern fixer, resulting in an undisrupted video signal with a continuous 2-3 field sequence. In the two-pass mode, the disrupted video signal is analyzed to generate correction information, which is then stored. This correction information is then used to correct a duplicate of the disrupted video signal, resulting in an undisrupted video signal with a continuous 2-3 field sequence. In this connection, the 2-3 field pattern fixer includes a field sequence detector, a field sequence analyzer, a field sequence generator and a multiple delay tap circuit. The field sequence detector generates field difference values in response to receiving the disrupted video signal. The field sequence analyzer analyzes these field difference values to determine one or more discontinuities within the discontinuous 2-3 field sequence. The field sequence generator generates one or more field sequence correction signals in response to this analysis. The multiple delay tap circuit applies these correction signals to a video signal to generate an undisrupted video signal having a continuous 2-3 field sequence. The 2-3 field pattern fixer can optionally includes a First-In-First-Out (FIFO) memory and a time code comparator, which can be used to store a multitude of the correction signals during the first pass of the two-pass mode, and for synchronizing the application of each of the correction signals to the duplicated disrupted video signal during the second pass of the two-pass mode.
摘要翻译：提供的系统和方法用于允许用户校正中断的视频信号内的不连续的2-3场序列。 2-3场模式定位器可以在单程模式和/或双通模式下操作。在单通模式下，对视频信号进行分析，生成校正信息，该校正信息用于在通过2-3图案定影器时纠正视频信号中断，导致视频信号连续2-3 场序列。在双通模式下，分析影像信号被破坏，生成修正信息，然后存储。然后，该校正信息用于校正中断的视频信号的副本，导致具有连续的2-3场序列的未中断的视频信号。在这方面，2-3场模式定位器包括场序列检测器，场序列分析器，场序发生器和多延迟抽头电路。场序列检测器响应于接收到中断的视频信号而产生场差值。场序列分析仪分析这些场差值以确定不连续2-3场序列内的一个或多个不连续性。场序列发生器响应于该分析产生一个或多个场序列校正信号。多个延迟抽头电路将这些校正信号应用于视频信号以产生具有连续2-3场序列的未中断视频信号。 2-3场模式定位器可以可选地包括先进先出（FIFO）存储器和时间码比较器，其可以用于在双路模式的第一次通过期间存储大量的校正信号并且用于在双路模式的第二次通过期间将每个校正信号的应用同步到复制的中断视频信号。

4. 发明授权

US06559890B1 Methods and apparatus for correction of 2-3 field patterns 有权
标题翻译：校正2-3场图案的方法和装置
公开(公告)号：US06559890B1
公开(公告)日：2003-05-06
申请号：US09295936
申请日：1999-04-21
申请人： David E. Holland , Gavin W. Schutz , Merle C. Sharp
发明人： David E. Holland , Gavin W. Schutz , Merle C. Sharp
IPC分类号： H04N701
CPC分类号： H04N7/0112
摘要： Systems and methods are provided for allowing a user to correct a discontinuous 2-3 field sequence within a disrupted video signal. A 2-3 field pattern fixer can be operated in a one-pass mode and/or a two-pass mode. In the one-pass mode, the disrupted video signal is analyzed to generate correction information, which is used to correct the disrupted video signal as it passes through the 2-3 pattern fixer, resulting in an undisrupted video signal with a continuous 2-3 field sequence. In the two-pass mode, the disrupted video signal is analyzed to generate correction information, which is then stored. This correction information is then used to correct a duplicate of the disrupted video signal, resulting in an undisrupted video signal with a continuous 2-3 field sequence. In this connection, the 2-3 field pattern fixer includes a field sequence detector, a field sequence analyzer, a field sequence generator and a multiple delay tap circuit. The field sequence detector generates field difference values in response to receiving the disrupted video signal. The field sequence analyzer analyzes these field difference values to determine one or more discontinuities within the discontinuous 2-3 field sequence. The field sequence generator generates one or more field sequence correction signals in response to this analysis. The multiple delay tap circuit applies these correction signals to a video signal to generate an undisrupted video signal having a continuous 2-3 field sequence. The 2-3 field pattern fixer can optionally includes a First-In-First-Out (FIFO) memory and a time code comparator, which can be used to store a multitude of the correction signals during the first pass of the two-pass mode, and for synchronizing the application of each of the correction signals to the duplicated disrupted video signal during the second pass of the two-pass mode.
摘要翻译：提供的系统和方法用于允许用户校正中断的视频信号内的不连续的2-3场序列。 2-3场模式定位器可以在单程模式和/或双通模式下操作。在单通模式下，对视频信号进行分析，生成校正信息，该校正信息用于在通过2-3图案定影器时纠正视频信号中断，导致视频信号连续2-3 场序列。在双通模式下，分析影像信号被破坏，生成修正信息，然后存储。然后，该校正信息用于校正中断的视频信号的副本，导致具有连续的2-3场序列的未中断的视频信号。在这方面，2-3场模式定位器包括场序列检测器，场序列分析器，场序发生器和多延迟抽头电路。场序列检测器响应于接收到中断的视频信号而产生场差值。场序列分析仪分析这些场差值以确定不连续2-3场序列内的一个或多个不连续性。场序列发生器响应于该分析产生一个或多个场序列校正信号。多个延迟抽头电路将这些校正信号应用于视频信号以产生具有连续2-3场序列的未中断视频信号。 2-3场模式定位器可以可选地包括先进先出（FIFO）存储器和时间码比较器，其可以用于在双路模式的第一次通过期间存储大量的校正信号并且用于在双路模式的第二次通过期间将每个校正信号的应用同步到复制的中断视频信号。

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