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1. 发明申请

US20100172411A1 HIGH DYNAMIC RANGE CODECS 有权
标题翻译：高动态范围编码
公开(公告)号：US20100172411A1
公开(公告)日：2010-07-08
申请号：US12160738
申请日：2006-09-07
申请人： Alexander Efremov , Rafal Mantiuk , Grzegorz Krawczyk , Karol Myszkowski , Hans-Peter Seidel
发明人： Alexander Efremov , Rafal Mantiuk , Grzegorz Krawczyk , Karol Myszkowski , Hans-Peter Seidel
IPC分类号： H04N7/12
CPC分类号： H04N19/50 , H04N19/105 , H04N19/124 , H04N19/136 , H04N19/184 , H04N19/186 , H04N19/187 , H04N19/33 , H04N19/59 , H04N19/63 , H04N19/98
摘要： A method for encoding high dynamic ränge (HDR) images involves providing a lower dynamic ränge (LDR) image, generating a prediction function for estimating the values for pixels in the HDR image based on the values of corresponding pixels in the LDR image, and obtaining a residual frame based on differences between the pixel values of the HDR image and estimated pixel values. The LDR image, prediction function and residual frame can all be encoded in data from which either the LDR image of HDR image can be recreated.
摘要翻译：用于编码高动态范围（HDR）图像的方法涉及提供较低动态范围（LDR）图像，产生用于基于LDR图像中的相应像素的值估计HDR图像中的像素的值的预测函数，并且获得基于HDR图像的像素值与估计像素值之间的差异的残差帧。 LDR图像，预测函数和残差帧都可以在数据中进行编码，从而可以重新创建HDR图像的LDR图像。

2. 发明授权

US08537893B2 High dynamic range codecs 有权
标题翻译：高动态范围编解码器
公开(公告)号：US08537893B2
公开(公告)日：2013-09-17
申请号：US12160738
申请日：2006-09-07
申请人： Alexander Efremov , Rafal Mantiuk , Grzegorz Krawczyk , Karol Myszkowski , Hans-Peter Seidel
发明人： Alexander Efremov , Rafal Mantiuk , Grzegorz Krawczyk , Karol Myszkowski , Hans-Peter Seidel
IPC分类号： H04N1/417
CPC分类号： H04N19/50 , H04N19/105 , H04N19/124 , H04N19/136 , H04N19/184 , H04N19/186 , H04N19/187 , H04N19/33 , H04N19/59 , H04N19/63 , H04N19/98
摘要： A method for encoding high dynamic ränge (HDR) images involves providing a lower dynamic ränge (LDR) image, generating a prediction function for estimating the values for pixels in the HDR image based on the values of corresponding pixels in the LDR image, and obtaining a residual frame based on differences between the pixel values of the HDR image and estimated pixel values. The LDR image, prediction function and residual frame can all be encoded in data from which either the LDR image of HDR image can be recreated.
摘要翻译：用于编码高动态范围（HDR）图像的方法涉及提供较低动态范围（LDR）图像，产生用于基于LDR图像中的相应像素的值估计HDR图像中的像素的值的预测函数，以及获得基于HDR图像的像素值与估计像素值之间的差异的残差帧。 LDR图像，预测函数和残差帧都可以在数据中进行编码，从而可以重新创建HDR图像的LDR图像。

3. 发明授权

US07483486B2 Method and apparatus for encoding high dynamic range video 失效
标题翻译：用于编码高动态范围视频的方法和装置
公开(公告)号：US07483486B2
公开(公告)日：2009-01-27
申请号：US10884178
申请日：2004-07-02
申请人： Rafal Mantiuk , Grzegorz Krawczyk , Karol Myszkowski , Hans-Peter Seidel
发明人： Rafal Mantiuk , Grzegorz Krawczyk , Karol Myszkowski , Hans-Peter Seidel
IPC分类号： H04B1/66 , G06K9/36
CPC分类号： H04N19/86 , H04N19/154 , H04N19/30 , H04N19/46 , H04N19/61
摘要： A method and apparatus for encoding high dynamic range video by means of video compression is shown. The method comprises the steps of providing high dynamic range (HDR) tristimulus color data (XYZ) for each frame of the video and threshold versus intensity data for a human observer; constructing a perceptually conservative luminance transformation from continuous luminance data (Y) to discrete values (Lp) using said threshold versus intensity data for the human observer; transforming the HDR tristimulus color data into perceptually linear color data of three color channels (Lp, u′, v′) for obtaining visually lossless compressed frames; estimating motion vector of said consecutive frames of the video and compensating the difference of the tristimulus color data for performing an inter-frame encoding and an inter-frame compression; transforming the compensated differences of the tristimulus color data to frequency space data; quantizing said frequency space data; variable-length encoding of the quantized frequency space data and storing or transmitting a stream of visual data resulting from the encoded quantized frequency space data.
摘要翻译：示出了通过视频压缩对高动态范围视频进行编码的方法和装置。该方法包括以下步骤：针对人类观察者的每个视频帧和阈值对强度数据提供高动态范围（HDR）三刺激色彩数据（XYZ）; 使用所述用于人类观察者的阈值对强度数据，从连续亮度数据（Y）到离散值（Lp）构建感知保守的亮度变换; 将HDR三刺激色彩数据变换成三色通道（Lp，u'，v'）的感知线性颜色数据，以获得视觉无损压缩帧; 估计所述视频的连续帧的运动矢量，并补偿用于执行帧间编码和帧间压缩的三刺激色数据的差; 将三刺激色彩数据的补偿差异转换为频率空间数据; 量化所述频率空间数据; 量化频率空间数据的可变长度编码，并且存储或发送由编码的量化频率空间数据产生的可视数据流。

4. 发明申请

US20060002611A1 Method and apparatus for encoding high dynamic range video 失效
标题翻译：用于编码高动态范围视频的方法和装置
公开(公告)号：US20060002611A1
公开(公告)日：2006-01-05
申请号：US10884178
申请日：2004-07-02
申请人： Rafal Mantiuk , Grzegorz Krawczyk , Karol Myszkowski , Hans-Peter Seidel
发明人： Rafal Mantiuk , Grzegorz Krawczyk , Karol Myszkowski , Hans-Peter Seidel
IPC分类号： G06K9/36
CPC分类号： H04N19/86 , H04N19/154 , H04N19/30 , H04N19/46 , H04N19/61
摘要： A method and apparatus for encoding high dynamic range video by means of video compression is shown. The method comprises the steps of providing high dynamic range (HDR) tristimulus color data (XYZ) for each frame of the video and threshold versus intensity data for a human observer; constructing a perceptually conservative luminance transformation from continuous luminance data (Y) to discrete values (Lp) using said threshold versus intensity data for the human observer; transforming the HDR tristimulus color data into perceptually linear color data of three color channels (Lp, u′, v′) for obtaining visually lossless compressed frames; estimating motion vector of said consecutive frames of the video and compensating the difference of the tristimulus color data for performing an inter-frame encoding and an inter-frame compression; transforming the compensated differences of the tristimulus color data to frequency space data; quantizing said frequency space data; variable-length encoding of the quantized frequency space data and storing or transmitting a stream of visual data resulting from the encoded quantized frequency space data;
摘要翻译：示出了通过视频压缩对高动态范围视频进行编码的方法和装置。该方法包括以下步骤：针对人类观察者的每个视频帧和阈值对强度数据提供高动态范围（HDR）三刺激色彩数据（XYZ）; 使用所述用于人类观察者的阈值对强度数据，从连续亮度数据（Y）构建到离散值（L >P ）的感知保守亮度变换; 将HDR三刺激色彩数据变换成三个色彩通道（L> p，u'，v'）的感知线性颜色数据，以获得视觉无损压缩帧; 估计所述视频的连续帧的运动矢量，并补偿用于执行帧间编码和帧间压缩的三刺激色数据的差; 将三刺激色彩数据的补偿差异转换为频率空间数据; 量化所述频率空间数据; 量化频率空间数据的可变长度编码，并且存储或发送由编码的量化频率空间数据产生的可视数据流;

5. 发明授权

US08330768B2 Apparatus and method for rendering high dynamic range images for standard dynamic range display 有权
标题翻译：用于为标准动态范围显示渲染高动态范围图像的装置和方法
公开(公告)号：US08330768B2
公开(公告)日：2012-12-11
申请号：US11829739
申请日：2007-07-27
申请人： Rafal Mantiuk , Scott James Daly
发明人： Rafal Mantiuk , Scott James Daly
IPC分类号： G09G5/02
CPC分类号： H04N9/68 , H04N1/4072 , H04N1/6027 , H04N5/20 , H04N9/67
摘要： The method, system and apparatus embodiments of the present invention provide for rendering original images having high dynamic range into display images having lower dynamic range while retaining a visual quality of rendered images comparable to the original or reference images. Tone-mapping parameters are applied to the display images and are iteratively adjusted in order to reduce the differences between the conditioned original image and the conditioned display image.
摘要翻译：本发明的方法，系统和装置实施例提供了将具有高动态范围的原始图像渲染成具有较低动态范围的显示图像，同时保持与原始图像或参考图像相比较的渲染图像的视觉质量。色调映射参数被应用于显示图像，并且被迭代地调整以便减小条件化原始图像与条件显示图像之间的差异。

6. 发明申请

US20090027558A1 Apparatus and Method for Rendering High Dynamic Range Images for Standard Dynamic Range Display 有权
标题翻译：用于渲染标准动态范围显示的高动态范围图像的装置和方法
公开(公告)号：US20090027558A1
公开(公告)日：2009-01-29
申请号：US11829739
申请日：2007-07-27
申请人： Rafal Mantiuk , Scott James Daly
发明人： Rafal Mantiuk , Scott James Daly
IPC分类号： H04N5/14
CPC分类号： H04N9/68 , H04N1/4072 , H04N1/6027 , H04N5/20 , H04N9/67
摘要： The method, system and apparatus embodiments of the present invention provide for rendering original images having high dynamic range into display images having lower dynamic range while retaining a visual quality of rendered images comparable to the original or reference images. Tone-mapping parameters are applied to the display images and are iteratively adjusted in order to reduce the differences between the conditioned original image and the conditioned display image.
摘要翻译：本发明的方法，系统和装置实施例提供了将具有高动态范围的原始图像渲染成具有较低动态范围的显示图像，同时保持与原始图像或参考图像相比较的渲染图像的视觉质量。色调映射参数被应用于显示图像，并且被迭代地调整以便减小条件化原始图像与条件显示图像之间的差异。

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