公开(公告)号：US09560330B2

公开(公告)日：2017-01-31

申请号：US14867205

申请日：2015-09-28

申请人： ViXS Systems, Inc.

发明人： Bradley Arthur Wallace ,  Xiaowen Wu ,  Jie Feng ,  Xinghai Li

IPC分类号： H04N9/64 ,  G06T5/00

CPC分类号： H04N9/64 ,  G06T5/007 ,  G06T5/009 ,  G06T2207/10016 ,  G06T2207/20208

摘要： In various embodiments, a dynamic range converter includes a plurality of circuits, including at least one configurable circuit that operates based on configuration data. The plurality of circuits include a first color space converter to convert a source color space of a source video having a source dynamic range to nonlinear color space signals. A linearizer configured converts the nonlinear color space signals to linearized color space signals having a mastering dynamic range via a piecewise linear interpolation of a transfer function. A color volume transformer applies dynamic color transform metadata associated with the source video to generate master adjusted color space signals from the linearized color space signals. A delinearizer converts the master adjusted color space signals to nonlinearized color space signals via a piecewise linear interpolation of an inverse transfer function in accordance with a display dynamic range. A second color space converter converts the nonlinearized color space signals to display domain signals. Other embodiments are disclosed.

摘要翻译： 在各种实施例中，动态范围转换器包括多个电路，包括至少一个基于配置数据操作的可配置电路。 多个电路包括第一颜色空间转换器，用于将具有源动态范围的源视频的源色彩空间转换为非线性色彩空间信号。 线性化器被配置为通过传递函数的分段线性插值将非线性色彩空间信号转换成具有母带制动动态范围的线性化颜色空间信号。 颜色体积变换器应用与源视频相关联的动态色彩变换元数据，以从线性化的颜色空间信号生成主调节的色彩空间信号。 除法器根据显示动态范围通过反向传递函数的分段线性插值将主调整色空间信号转换为非线性色空间信号。 第二色空间转换器将非线性化色空间信号转换成显示域信号。 公开了其他实施例。

公开(公告)号：US20160205371A1

公开(公告)日：2016-07-14

申请号：US14873916

申请日：2015-10-02

申请人： ViXS Systems, Inc.

发明人： Bradley Arthur Wallace ,  Xiaowen Wu

IPC分类号： H04N9/64

CPC分类号： G06T5/007 ,  G06T1/20 ,  G06T5/009 ,  G06T2207/20208 ,  H04N5/20 ,  H04N9/67 ,  H04N9/68

摘要： In various embodiments, a dynamic range converter includes a first color space converter to convert a source color space of a source video having a source dynamic range to nonlinear color space signals. A linearizer configured converts the nonlinear color space signals to linearized color space signals having a mastering dynamic range via a piecewise linear interpolation of a transfer function. A color volume transformer applies dynamic color transform metadata associated with the source video on a frame by frame basis to generate master adjusted color space signals from the linearized color space signals. A delinearizer converts the master adjusted color space signals to nonlinearized color space signals via a piecewise linear interpolation of an inverse transfer function in accordance with a display dynamic range. A second color space converter converts the nonlinearized color space signals to display domain signals. Other embodiments are disclosed.

摘要翻译： 在各种实施例中，动态范围转换器包括第一颜色空间转换器，用于将具有源动态范围的源视频的源色彩空间转换为非线性色彩空间信号。 线性化器被配置为通过传递函数的分段线性插值将非线性色彩空间信号转换成具有母带制动动态范围的线性化颜色空间信号。 颜色体积变换器逐帧地应用与源视频相关联的动态颜色变换元数据，以从线性化的颜色空间信号生成主调节的色彩空间信号。 除法器根据显示动态范围通过反向传递函数的分段线性插值将主调整色空间信号转换为非线性色空间信号。 第二色空间转换器将非线性化色空间信号转换成显示域信号。 公开了其他实施例。

公开(公告)号：US20160205367A1

公开(公告)日：2016-07-14

申请号：US14863065

申请日：2015-09-23

申请人： ViXS Systems, Inc.

发明人： Bradley Arthur Wallace ,  Xiaowen Wu ,  Jie Feng ,  Xinghai Li

IPC分类号： H04N9/64

CPC分类号： H04N9/64 ,  G06T5/007 ,  G06T5/009 ,  G06T2207/10016 ,  G06T2207/20208

摘要： In various embodiments, a dynamic range converter includes a first color space converter to convert a source color space of a source video having a source dynamic range to nonlinear color space signals. A linearizer configured converts the nonlinear color space signals to linearized color space signals having a mastering dynamic range via a piecewise linear interpolation of a transfer function. A color volume transformer applies dynamic color transform metadata associated with the source video to generate master adjusted color space signals from the linearized color space signals. A delinearizer converts the master adjusted color space signals to nonlinearized color space signals via a piecewise linear interpolation of an inverse transfer function in accordance with a display dynamic range. A second color space converter converts the nonlinearized color space signals to display domain signals. Other embodiments are disclosed.

摘要翻译： 在各种实施例中，动态范围转换器包括第一颜色空间转换器，用于将具有源动态范围的源视频的源色彩空间转换为非线性色彩空间信号。 线性化器被配置为通过传递函数的分段线性插值将非线性色彩空间信号转换成具有母带制动动态范围的线性化颜色空间信号。 颜色体积变换器应用与源视频相关联的动态色彩变换元数据，以从线性化的颜色空间信号生成主调节的色彩空间信号。 除法器根据显示动态范围通过反向传递函数的分段线性插值将主调整色空间信号转换为非线性色空间信号。 第二色空间转换器将非线性化色空间信号转换成显示域信号。 公开了其他实施例。

公开(公告)号：US09654755B2

公开(公告)日：2017-05-16

申请号：US14867234

申请日：2015-09-28

申请人： ViXS Systems, Inc.

发明人： Bradley Arthur Wallace

IPC分类号： H04N9/68 ,  H04N9/67 ,  H04N5/20 ,  G06T5/00

CPC分类号： H04N9/68 ,  G06T5/009 ,  G06T2207/10016 ,  G06T2207/20208 ,  H04N5/20 ,  H04N9/67

摘要： In various embodiments, a dynamic range converter includes at least one circuit including a logarithm base 2 (log 2) domain circuit that uses piecewise linear interpolation to perform as at least a portion of one of: a linearizer configured to convert nonlinear color space signals to linearized color space signals; a delinearizer configured to convert linear color space signals to nonlinearized color space signals; a chrominance tone mapper for scaling gamut shaped components in accordance with dynamic color transform metadata to generate chrominance mapped components; or a luminance tone mapper for scaling color remapped components in accordance with the dynamic color transform metadata to generate luminance mapped components. Other embodiments are disclosed.

公开(公告)号：US20160205369A1

公开(公告)日：2016-07-14

申请号：US14867234

申请日：2015-09-28

申请人： ViXS Systems, Inc.

发明人： Bradley Arthur Wallace

IPC分类号： H04N9/64

CPC分类号： H04N9/68 ,  G06T5/009 ,  G06T2207/10016 ,  G06T2207/20208 ,  H04N5/20 ,  H04N9/67

摘要： In various embodiments, a dynamic range converter includes at least one circuit including a logarithm base 2 (log 2) domain circuit that uses piecewise linear interpolation to perform as at least a portion of one of: a linearizer configured to convert nonlinear color space signals to linearized color space signals; a delinearizer configured to convert linear color space signals to nonlinearized color space signals; a chrominance tone mapper for scaling gamut shaped components in accordance with dynamic color transform metadata to generate chrominance mapped components; or a luminance tone mapper for scaling color remapped components in accordance with the dynamic color transform metadata to generate luminance mapped components. Other embodiments are disclosed.

摘要翻译： 在各种实施例中，动态范围转换器包括至少一个电路，其包括对数基础2（log 2）域电路，其使用分段线性插值来执行以下之一的至少一部分：线性化器，其被配置为将非线性颜色空间信号转换为 线性化颜色空间信号; 配置为将线性色彩空间信号转换为非线性色彩空间信号的分类器; 色度色调映射器，用于根据动态颜色变换元数据对色域形分量进行缩放以产生色度映射分量; 或用于根据动态颜色变换元数据缩放颜色重新映射的组件以产生亮度映射分量的亮度色调映射器。 公开了其他实施例。

公开(公告)号：US09544560B2

公开(公告)日：2017-01-10

申请号：US14863065

申请日：2015-09-23

申请人： ViXS Systems, Inc.

发明人： Bradley Arthur Wallace ,  Xiaowen Wu ,  Jie Feng ,  Xinghai Li

IPC分类号： H04N9/64 ,  G06T5/00

CPC分类号： H04N9/64 ,  G06T5/007 ,  G06T5/009 ,  G06T2207/10016 ,  G06T2207/20208

摘要： In various embodiments, a dynamic range converter includes a first color space converter to convert a source color space of a source video having a source dynamic range to nonlinear color space signals. A linearizer configured converts the nonlinear color space signals to linearized color space signals having a mastering dynamic range via a piecewise linear interpolation of a transfer function. A color volume transformer applies dynamic color transform metadata associated with the source video to generate master adjusted color space signals from the linearized color space signals. A delinearizer converts the master adjusted color space signals to nonlinearized color space signals via a piecewise linear interpolation of an inverse transfer function in accordance with a display dynamic range. A second color space converter converts the nonlinearized color space signals to display domain signals. Other embodiments are disclosed.

摘要翻译： 在各种实施例中，动态范围转换器包括第一颜色空间转换器，用于将具有源动态范围的源视频的源色彩空间转换为非线性色彩空间信号。 线性化器被配置为通过传递函数的分段线性插值将非线性色彩空间信号转换成具有母带制动动态范围的线性化颜色空间信号。 颜色体积变换器应用与源视频相关联的动态色彩变换元数据，以从线性化的颜色空间信号生成主调节的色彩空间信号。 除法器根据显示动态范围通过反向传递函数的分段线性插值将主调整色空间信号转换为非线性色空间信号。 第二色空间转换器将非线性化色空间信号转换成显示域信号。 公开了其他实施例。

公开(公告)号：US20160205368A1

公开(公告)日：2016-07-14

申请号：US14867205

申请日：2015-09-28

申请人： VIXS Systems, Inc.

发明人： Bradley Arthur Wallace ,  Xiaowen Wu ,  Jie Feng ,  Xinghai Li

IPC分类号： H04N9/64

CPC分类号： H04N9/64 ,  G06T5/007 ,  G06T5/009 ,  G06T2207/10016 ,  G06T2207/20208

摘要： In various embodiments, a dynamic range converter includes a plurality of circuits, including at least one configurable circuit that operates based on configuration data. The plurality of circuits include a first color space converter to convert a source color space of a source video having a source dynamic range to nonlinear color space signals. A linearizer configured converts the nonlinear color space signals to linearized color space signals having a mastering dynamic range via a piecewise linear interpolation of a transfer function. A color volume transformer applies dynamic color transform metadata associated with the source video to generate master adjusted color space signals from the linearized color space signals. A delinearizer converts the master adjusted color space signals to nonlinearized color space signals via a piecewise linear interpolation of an inverse transfer function in accordance with a display dynamic range. A second color space converter converts the nonlinearized color space signals to display domain signals. Other embodiments are disclosed.

摘要翻译： 在各种实施例中，动态范围转换器包括多个电路，包括至少一个基于配置数据操作的可配置电路。 多个电路包括第一颜色空间转换器，用于将具有源动态范围的源视频的源色彩空间转换为非线性色彩空间信号。 线性化器被配置为通过传递函数的分段线性插值将非线性色彩空间信号转换成具有母带制动动态范围的线性化颜色空间信号。 颜色体积变换器应用与源视频相关联的动态色彩变换元数据，以从线性化的颜色空间信号生成主调节的色彩空间信号。 除法器根据显示动态范围通过反向传递函数的分段线性插值将主调整色空间信号转换为非线性色空间信号。 第二色空间转换器将非线性化色空间信号转换成显示域信号。 公开了其他实施例。

公开(公告)号：US09589313B2

公开(公告)日：2017-03-07

申请号：US14867312

申请日：2015-09-28

申请人： ViXS Systems, Inc.

发明人： Bradley Arthur Wallace

IPC分类号： G06T1/20 ,  G06T5/00 ,  H04N5/20 ,  H04N9/67 ,  H04N9/68

CPC分类号： G06T1/20 ,  G06T5/007 ,  G06T5/009 ,  G06T2207/10016 ,  G06T2207/20208 ,  H04N5/20 ,  H04N9/67 ,  H04N9/68

摘要： In various embodiments, a dynamic range converter includes a plurality of circuits configured in a processing pipeline for operation timed by a pixel clock. The plurality of circuits include a first color space converter to convert a source color space of a source video having a source dynamic range to nonlinear color space signals. A linearizer configured converts the nonlinear color space signals to linearized color space signals having a mastering dynamic range via a piecewise linear interpolation of a transfer function. A color volume transformer applies dynamic color transform metadata associated with the source video to generate master adjusted color space signals from the linearized color space signals. A delinearizer converts the master adjusted color space signals to nonlinearized color space signals via a piecewise linear interpolation of an inverse transfer function in accordance with a display dynamic range. A second color space converter converts the nonlinearized color space signals to display domain signals. Other embodiments are disclosed.

摘要翻译： 在各种实施例中，动态范围转换器包括配置在由像素时钟计时的操作的处理流水线中的多个电路。 多个电路包括第一颜色空间转换器，用于将具有源动态范围的源视频的源色彩空间转换为非线性色彩空间信号。 线性化器被配置为通过传递函数的分段线性插值将非线性色彩空间信号转换成具有母带制动动态范围的线性化颜色空间信号。 颜色体积变换器应用与源视频相关联的动态色彩变换元数据，以从线性化的颜色空间信号生成主调节的色彩空间信号。 除法器根据显示动态范围通过反向传递函数的分段线性插值将主调整色空间信号转换为非线性色空间信号。 第二色空间转换器将非线性化色空间信号转换成显示域信号。 公开了其他实施例。

公开(公告)号：US09558538B2

公开(公告)日：2017-01-31

申请号：US14873916

申请日：2015-10-02

申请人： ViXS Systems, Inc.

发明人： Bradley Arthur Wallace ,  Xiaowen Wu

IPC分类号： G06T5/00 ,  H04N5/20 ,  H04N5/68 ,  H04N9/67 ,  H04N9/68

CPC分类号： G06T5/007 ,  G06T1/20 ,  G06T5/009 ,  G06T2207/20208 ,  H04N5/20 ,  H04N9/67 ,  H04N9/68

摘要： In various embodiments, a dynamic range converter includes a first color space converter to convert a source color space of a source video having a source dynamic range to nonlinear color space signals. A linearizer configured converts the nonlinear color space signals to linearized color space signals having a mastering dynamic range via a piecewise linear interpolation of a transfer function. A color volume transformer applies dynamic color transform metadata associated with the source video on a frame by frame basis to generate master adjusted color space signals from the linearized color space signals. A delinearizer converts the master adjusted color space signals to nonlinearized color space signals via a piecewise linear interpolation of an inverse transfer function in accordance with a display dynamic range. A second color space converter converts the nonlinearized color space signals to display domain signals. Other embodiments are disclosed.

摘要翻译： 在各种实施例中，动态范围转换器包括第一颜色空间转换器，用于将具有源动态范围的源视频的源色彩空间转换为非线性色彩空间信号。 线性化器被配置为通过传递函数的分段线性插值将非线性色彩空间信号转换为具有母带制动动态范围的线性化彩色空间信号。 颜色体积变换器逐帧地应用与源视频相关联的动态颜色变换元数据，以从线性化的颜色空间信号生成主调节的色彩空间信号。 除法器根据显示动态范围通过反向传递函数的分段线性插值将主调节色空间信号转换为非线性色空间信号。 第二色空间转换器将非线性化色空间信号转换成显示域信号。 公开了其他实施例。

公开(公告)号：US20160205370A1

公开(公告)日：2016-07-14

申请号：US14867312

申请日：2015-09-28

申请人： VIXS SYSTEMS, INC.

发明人： Bradley Arthur Wallace

IPC分类号： H04N9/64 ,  G06T1/20

CPC分类号： G06T1/20 ,  G06T5/007 ,  G06T5/009 ,  G06T2207/10016 ,  G06T2207/20208 ,  H04N5/20 ,  H04N9/67 ,  H04N9/68

摘要： In various embodiments, a dynamic range converter includes a plurality of circuits configured in a processing pipeline for operation timed by a pixel clock. The plurality of circuits include a first color space converter to convert a source color space of a source video having a source dynamic range to nonlinear color space signals. A linearizer configured converts the nonlinear color space signals to linearized color space signals having a mastering dynamic range via a piecewise linear interpolation of a transfer function. A color volume transformer applies dynamic color transform metadata associated with the source video to generate master adjusted color space signals from the linearized color space signals. A delinearizer converts the master adjusted color space signals to nonlinearized color space signals via a piecewise linear interpolation of an inverse transfer function in accordance with a display dynamic range. A second color space converter converts the nonlinearized color space signals to display domain signals. Other embodiments are disclosed.

摘要翻译： 在各种实施例中，动态范围转换器包括配置在由像素时钟计时的操作的处理流水线中的多个电路。 多个电路包括第一颜色空间转换器，用于将具有源动态范围的源视频的源色彩空间转换为非线性色彩空间信号。 线性化器被配置为通过传递函数的分段线性插值将非线性色彩空间信号转换成具有母带制动动态范围的线性化颜色空间信号。 颜色体积变换器应用与源视频相关联的动态色彩变换元数据，以从线性化的颜色空间信号生成主调节的色彩空间信号。 除法器根据显示动态范围通过反向传递函数的分段线性插值将主调整色空间信号转换为非线性色空间信号。 第二色空间转换器将非线性化色空间信号转换成显示域信号。 公开了其他实施例。