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公开(公告)号：US11812020B2
公开(公告)日：2023-11-07
申请号：US17201129
申请日：2021-03-15
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Walter C. Gish , Christopher J. Vogt
IPC: H04N19/124 , H04N19/61 , H04N19/126 , H04N19/184
CPC classification number: H04N19/124 , H04N19/126 , H04N19/184 , H04N19/61
Abstract: The quantization parameter QP is well-known in digital video compression as an indication of picture quality. Digital symbols representing a moving image are quantized with a quantizing step that is a function QSN of the quantization parameter QP, which function QSN has been normalized to the most significant bit of the bit depth of the digital symbols. As a result, the effect of a given QP is essentially independent of bit depth a particular QP value has a standard effect on image quality, regardless of bit depth. The invention is useful, for example, in encoding and decoding at different bit depths, to generate compatible, bitstreams having different bit depths, and to allow different bit depths for different components of a video signal by compressing each with the same fidelity (i.e., the same QP).
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公开(公告)号：US10951893B2
公开(公告)日：2021-03-16
申请号：US16939337
申请日：2020-07-27
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Walter C. Gish , Christopher J. Vogt
IPC: H04N19/124 , H04N19/184 , H04N19/126 , H04N19/61
Abstract: The quantization parameter QP is well-known in digital video compression as an indication of picture quality. Digital symbols representing a moving image are quantized with a quantizing step that is a function QSN of the quantization parameter QP, which function QSN has been normalized to the most significant bit of the bit depth of the digital symbols. As a result, the effect of a given QP is essentially independent of bit depth a particular QP value has a standard effect on image quality, regardless of bit depth. The invention is useful, for example, in encoding and decoding at different bit depths, to generate compatible, bitstreams having different bit depths, and to allow different bit depths for different components of a video signal by compressing each with the same fidelity (i.e., the same QP).
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公开(公告)号：US09924172B2
公开(公告)日：2018-03-20
申请号：US15625192
申请日：2017-06-16
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Walter C. Gish , Christopher J. Vogt
IPC: H04N19/124 , H04N19/61 , H04N19/126 , H04N19/184
CPC classification number: H04N19/124 , H04N19/126 , H04N19/184 , H04N19/61
Abstract: The quantization parameter QP is well-known in digital video compression as an indication of picture quality. Digital symbols representing a moving image are quantized with a quantizing step that is a function QSN of the quantization parameter QP, which function QSN has been normalized to the most significant bit of the bit depth of the digital symbols. As a result, the effect of a given QP is essentially independent of bit depth a particular QP value has a standard effect on image quality, regardless of bit depth. The invention is useful, for example, in encoding and decoding at different bit depths, to generate compatible, bitstreams having different bit depths, and to allow different bit depths for different components of a video signal by compressing each with the same fidelity (i.e., the same QP).
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公开(公告)号：US09042682B2
公开(公告)日：2015-05-26
申请号：US13899942
申请日：2013-05-22
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Robin Atkins , Tao Chen , Scott Daly , Walter C. Gish , Samir N. Hulyalkar , Michael Rockwell
CPC classification number: G06T3/4007 , G09G5/006 , G09G5/026 , G09G5/06 , G09G2320/0271 , G09G2320/0285 , G09G2320/06 , G09G2320/066 , G09G2320/0666 , G09G2340/0428 , G09G2370/10
Abstract: One or more derived versions of image content may be obtained by interpolating two or more source versions of the same image content. A derived version may be targeted for a class of displays that differs from classes of displays targeted by the source versions. Source images in a source version may have been color graded in a creative process by a content creator/colorist. Interpolation of the source versions may be performed with interpolation parameters having two or more different values in two or more different clusters in at least one of the source images. A normalized version may be used to allow efficient distribution of multiple versions of the same content to a variety of downstream media processing devices, and to preserve or restore image details otherwise lost in one or more of the source versions.
Abstract translation: 可以通过内插相同图像内容的两个或更多个源版本来获得图像内容的一个或多个派生版本。 派生版本可能针对与源版本所针对的显示类不同的一类显示器。 来源版本中的源图像可能已经由内容创建者/着色者在创意过程中进行了颜色分级。 源版本的插值可以在至少一个源图像中的两个或多个不同簇中具有两个或更多个不同值的插值参数来执行。 可以使用归一化版本来允许将相同内容的多个版本有效地分发到各种下游媒体处理设备，并且保留或恢复在一个或多个源版本中丢失的图像细节。
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公开(公告)号：US20140086312A1
公开(公告)日：2014-03-27
申请号：US14093852
申请日：2013-12-02
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Walter C. Gish , Christopher J. Vogt
IPC: H04N7/26
CPC classification number: H04N19/124 , H04N19/126 , H04N19/184 , H04N19/61
Abstract: The quantization parameter QP is well-known in digital video compression as an indication of picture quality. Digital symbols representing a moving image are quantized with a quantizing step that is a function QSN of the quantization parameter QP, which function QSN has been normalized to the most significant bit of the bit depth of the digital symbols. As a result, the effect of a given QP is essentially independent of bit depth a particular QP value has a standard effect on image quality, regardless of bit depth. The invention is useful, for example, in encoding and decoding at different bit depths, to generate compatible, bitstreams having different bit depths, and to allow different bit depths for different components of a video signal by compressing each with the same fidelity (i.e., the same QP).
Abstract translation: 量化参数QP在数字视频压缩中是众所周知的，作为图像质量的指示。 表示运动图像的数字符号用量化步骤进行量化，该量化步骤是量化参数QP的函数QSN，QSN已被归一化为数字符号的比特深度的最高有效位。 结果，给定QP的效果基本上与比特深度无关，特定的QP值对图像质量具有标准影响，而不考虑比特深度。 本发明例如在不同比特深度的编码和解码中是有用的，以产生具有不同比特深度的兼容的比特流，并且通过以相同的保真度压缩每个视频信号的不同分量来允许不同的比特深度（即， 相同的QP）。
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Patent Agency Ranking
公开(公告)号：US09294771B2
公开(公告)日：2016-03-22
申请号：US14093852
申请日：2013-12-02
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Walter C. Gish , Christopher J. Vogt
IPC: H04N19/124 , H04N19/126 , H04N19/61 , H04N19/184
CPC classification number: H04N19/124 , H04N19/126 , H04N19/184 , H04N19/61
Abstract: The quantization parameter QP is well-known in digital video compression as an indication of picture quality. Digital symbols representing a moving image are quantized with a quantizing step that is a function QSN of the quantization parameter QP, which function QSN has been normalized to the most significant bit of the bit depth of the digital symbols. As a result, the effect of a given QP is essentially independent of bit depth a particular QP value has a standard effect on image quality, regardless of bit depth. The invention is useful, for example, in encoding and decoding at different bit depths, to generate compatible, bitstreams having different bit depths, and to allow different bit depths for different components of a video signal by compressing each with the same fidelity (i.e., the same QP).
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公开(公告)号：US09077942B2
公开(公告)日：2015-07-07
申请号：US14510885
申请日：2014-10-09
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Walter C. Gish , David Ruhoff , Jon S. McElvain
CPC classification number: H04N9/646 , G06T7/90 , G06T2207/10024 , H04N1/60 , H04N9/643 , H04N9/735 , H04N17/002 , H04N17/02
Abstract: A substantially rectangular spectral representation is synthesized, which is adapted to produce image capture device sensor outputs if applied to an image capture device. The synthesized substantially rectangular spectral representation can be utilized in generating output color values of an output color space from image capture device sensor outputs, where the image capture device sensor outputs correspond to an image captured by an image capture device. The generated output color values correspond to colors perceived by the human visual system for the same image as that captured by the image capture device. Image capture device gamut is also determined.
Abstract translation: 合成基本上矩形的频谱表示，其适用于在应用于图像捕获装置时产生图像捕获装置传感器输出。 合成的基本上矩形的光谱表示可以用于从图像捕获装置传感器输出产生输出颜色空间的输出颜色值，其中图像捕获装置传感器输出对应于由图像捕获装置捕获的图像。 生成的输出颜色值对应于由人类视觉系统感知到的与由图像捕获装置捕获的图像相同的图像的颜色。 图像捕获设备色域也被确定。
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公开(公告)号：US20150022685A1
公开(公告)日：2015-01-22
申请号：US14510885
申请日：2014-10-09
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Walter C. Gish , David Ruhoff , Jon S. McElvain
IPC: H04N9/64
CPC classification number: H04N9/646 , G06T7/90 , G06T2207/10024 , H04N1/60 , H04N9/643 , H04N9/735 , H04N17/002 , H04N17/02
Abstract: A substantially rectangular spectral representation is synthesized, which is adapted to produce image capture device sensor outputs if applied to an image capture device. The synthesized substantially rectangular spectral representation can be utilized in generating output color values of an output color space from image capture device sensor outputs, where the image capture device sensor outputs correspond to an image captured by an image capture device. The generated output color values correspond to colors perceived by the human visual system for the same image as that captured by the image capture device. Image capture device gamut is also determined.
Abstract translation: 合成基本上矩形的频谱表示，其适用于在应用于图像捕获装置时产生图像捕获装置传感器输出。 合成的基本上矩形的光谱表示可以用于从图像捕获装置传感器输出产生输出颜色空间的输出颜色值，其中图像捕获装置传感器输出对应于由图像捕获装置捕获的图像。 生成的输出颜色值对应于由人类视觉系统感知到的与由图像捕获装置捕获的图像相同的图像的颜色。 图像捕获设备色域也被确定。
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9.发明授权Backwards-compatible delivery of digital cinema content with extended dynamic range 有权数字电影内容的向后兼容传输，具有扩展的动态范围公开(公告)号：US08872981B1
公开(公告)日：2014-10-28
申请号：US14363861
申请日：2012-12-06
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Walter C. Gish , Christopher J. Vogt
CPC classification number: G06T5/007 , G06T2200/16 , G06T2207/10016 , G06T2207/10024 , G06T2207/20048 , G06T2207/20208 , H04N9/68 , H04N9/77 , H04N19/186 , H04N19/46 , H04N19/85
Abstract: A digital cinema signal is encoded to produce a resulting coded digital cinema bitstream. Decoding the resulting coded digital cinema bitstream allows backwards-compatible delivery of digital cinema content. A digital image or video signal is preprocessed to produce two normalized digital image or video signals of differing quality levels and forward and inverse mapping parameters, which relate the normalized digital image or video signals. The preprocessing can be used prior to the encoding of a digital cinema signal to enable backwards-compatible delivery of digital cinema content.
Abstract translation: 数字电影信号被编码以产生最终的编码数字电影比特流。 解码所产生的编码数字电影比特流允许数字电影内容的向后兼容传送。 对数字图像或视频信号进行预处理，以产生两个不同质量级别的归一化数字图像或视频信号，以及与归一化数字图像或视频信号相关的正向和反向映射参数。 预处理可以在数字电影信号的编码之前使用，以实现数字电影内容的向后兼容传送。
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公开(公告)号：US20130315505A1
公开(公告)日：2013-11-28
申请号：US13899942
申请日：2013-05-22
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Robin Atkins , Tao Chen , Scott Daly , Walter C. Gish , Samir N. Hulyalkar , Michael Rockwell
IPC: G06T3/40
CPC classification number: G06T3/4007 , G09G5/006 , G09G5/026 , G09G5/06 , G09G2320/0271 , G09G2320/0285 , G09G2320/06 , G09G2320/066 , G09G2320/0666 , G09G2340/0428 , G09G2370/10
Abstract: One or more derived versions of image content may be obtained by interpolating two or more source versions of the same image content. A derived version may be targeted for a class of displays that differs from classes of displays targeted by the source versions. Source images in a source version may have been color graded in a creative process by a content creator/colorist. Interpolation of the source versions may be performed with interpolation parameters having two or more different values in two or more different clusters in at least one of the source images. A normalized version may be used to allow efficient distribution of multiple versions of the same content to a variety of downstream media processing devices, and to preserve or restore image details otherwise lost in one or more of the source versions.
Abstract translation: 可以通过内插相同图像内容的两个或更多个源版本来获得图像内容的一个或多个派生版本。 派生版本可能针对与源版本所针对的显示类不同的一类显示器。 来源版本中的源图像可能已经由内容创建者/着色者在创意过程中进行了颜色分级。 源版本的插值可以在至少一个源图像中的两个或多个不同簇中具有两个或更多个不同值的插值参数来执行。 可以使用归一化版本来允许将相同内容的多个版本有效地分发到各种下游媒体处理设备，并且保留或恢复在一个或多个源版本中丢失的图像细节。
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