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公开(公告)号：US20220398710A1
公开(公告)日：2022-12-15
申请号：US17344843
申请日：2021-06-10
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Robert WANAT , Robin ATKINS , Anustup Kumar Atanu CHOUDHURY , Scott DALY , Jaclyn Anne PYTLARZ
Abstract: Methods and systems for generating an image quality metric are described. A reference and a test image are first converted to the ITP color space. After calculating difference images ΔI, ΔT, and ΔP, using the color channels of the two images, the difference images are convolved with low pass filters, one for the I channel and one for the chroma channels (I or P). The image quality metric is computed as a function of the sum of squares of filtered ΔI, ΔT, and ΔP values. The chroma low-pass filter is designed to maximize matching the image quality metric with subjective results.
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2.发明申请公开(公告)号：US20200211504A1
公开(公告)日：2020-07-02
申请号：US16812810
申请日：2020-03-09
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Jon Scott MILLER , Scott DALY , Mahdi NEZAMABADI , Robin ATKINS
Abstract: A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.
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公开(公告)号：US20170285732A1
公开(公告)日：2017-10-05
申请号：US15431540
申请日：2017-02-13
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Scott DALY , Grant Haverstock MULLIKEN
CPC classification number: G06F3/011 , A61B5/4836 , A61B5/742 , G06T13/40 , G06T15/20 , G06T2215/16
Abstract: Input VR imagery is received. Global motions as represented in the input VR imagery relative to a viewer of a virtual reality (VR) application is extracted. A dampening factor is applied to the global motions to generate dampened global motions. VR imagery to be rendered to the viewer at a time point is generated based on the input VR imagery and the dampened global motions.
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4.发明申请PERCEPTUAL LUMINANCE NONLINEARITY-BASED IMAGE DATA EXCHANGE ACROSS DIFFERENT DISPLAY CAPABILITIES 有权基于不同显示能力的基于非线性的图像数据交换公开(公告)号：US20160119634A1
公开(公告)日：2016-04-28
申请号：US14925596
申请日：2015-10-28
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Jon Scott MILLER , Scott DALY , Mahdi NEZAMABADI , Robin ATKINS
CPC classification number: G09G5/10 , G06F3/14 , G09G5/005 , G09G2320/0276 , G09G2320/0285 , G09G2320/04 , G09G2340/0428 , G09G2340/0435 , G09G2340/06 , G09G2340/14 , G09G2370/04 , G09G2370/08 , G09G2380/08 , H04N19/40
Abstract: A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.
Abstract translation: 手持成像设备具有被配置为接收参考编码图像数据的数据接收器。 数据包括由外部编码系统编码的参考码值。 参考码值表示参考灰度级，其使用基于在不同光级别对空间频率适应的人类视觉的感知非线性的参考灰度显示功能来选择。 成像设备还具有数据转换器，其被配置为访问成像设备的参考代码值和设备特定代码值之间的代码映射。 设备特定的代码值被配置为产生特定于成像设备的灰度级。 基于代码映射，数据转换器被配置为将参考编码图像数据转码为特定于设备的图像数据，其被编码为特定于设备的代码值。
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公开(公告)号：US20160080712A1
公开(公告)日：2016-03-17
申请号：US14888058
申请日：2014-04-02
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Scott DALY , Bongsun LEE
CPC classification number: H04N9/646 , G09G3/2003 , G09G3/2048 , G09G5/026 , G09G5/10 , G09G2340/02 , G09G2340/06 , H04N1/646 , H04N9/68 , H04N19/90
Abstract: Dithering techniques for images are described herein. An input image of a first bit depth is separated into a luma and one or more chroma components. A model of the optical transfer function (OTF) of the human visual system (HVS) is used to generate dither noise which is added to the chroma components of the input image. The model of the OTF is adapted in response to viewing distances determined based on the spatial resolution of the chroma components. An image based on the original input luma component and the noise-modified chroma components is quantized to a second bit depth, which is lower than the first bit depth, to generate an output dithered image.
Abstract translation: 这里描述了用于图像的抖动技术。 第一位深度的输入图像被分成亮度和一个或多个色度分量。 使用人类视觉系统（HVS）的光学传递函数（OTF）的模型来产生加到输入图像的色度分量上的抖动噪声。 响应于基于色度分量的空间分辨率确定的观看距离来适应OTF的模型。 基于原始输入亮度分量和噪声修正色度分量的图像被量化为低于第一比特深度的第二比特深度，以生成输出抖动图像。
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Patent Agency Ranking
6.发明公开公开(公告)号：US20240155207A1
公开(公告)日：2024-05-09
申请号：US18511251
申请日：2023-11-16
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Doh-Suk KIM , Sean Thomas MCCARTHY , Scott DALY , Jeffrey RIEDMILLER , Ludovic Christophe MALFAIT , Raphael Marc ULLMANN , Jason Michael CLOUD
IPC: H04N21/647 , H04L65/80 , H04N21/2668 , H04N21/45
CPC classification number: H04N21/64769 , H04L65/80 , H04N21/2668 , H04N21/4532
Abstract: A method for delivering media to a playback device including outputting first test media to be viewed by a first user. The method further includes receiving a first user input related to a first perception of the first test media by the first user and indicating a first personalized quality of experience of the first user with respect to the first test media. The method further includes generating a first personalized sensitivity profile including one or more viewing characteristics of the first user based on the first user input, and determining, based at least in part on the first personalized sensitivity profile, a first media parameter. The first media parameter is determined in order to increase an efficiency of media delivery to the first playback device over a network while preserving the first personalized quality of experience of the first user.
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7.发明公开公开(公告)号：US20240144895A1
公开(公告)日：2024-05-02
申请号：US18542921
申请日：2023-12-18
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Jon Scott MILLER , Scott DALY , Mahdi NEZAMABADI , Robin ATKINS
CPC classification number: G09G5/10 , G06F3/14 , G09G5/005 , G09G5/06 , H04N19/40 , G09G2320/0276 , G09G2320/0285 , G09G2320/04 , G09G2340/0428 , G09G2340/0435 , G09G2340/06 , G09G2340/14 , G09G2370/04 , G09G2370/08 , G09G2380/08
Abstract: A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.
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8.发明申请公开(公告)号：US20210280154A1
公开(公告)日：2021-09-09
申请号：US17208886
申请日：2021-03-22
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Jon Scott MILLER , Scott DALY , Mahdi NEZAMABADI , Robin ATKINS
Abstract: A handheld imaging device has a data receiver that is configured to receive reference encoded image data. The data includes reference code values, which are encoded by an external coding system. The reference code values represent reference gray levels, which are being selected using a reference grayscale display function that is based on perceptual non-linearity of human vision adapted at different light levels to spatial frequencies. The imaging device also has a data converter that is configured to access a code mapping between the reference code values and device-specific code values of the imaging device. The device-specific code values are configured to produce gray levels that are specific to the imaging device. Based on the code mapping, the data converter is configured to transcode the reference encoded image data into device-specific image data, which is encoded with the device-specific code values.
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公开(公告)号：US20180366070A1
公开(公告)日：2018-12-20
申请号：US15571369
申请日：2016-05-11
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Suzanne FARRELL , Scott DALY , Robin ATKINS , Timo KUNKEL , Gregory John WARD , Samir N. HULYALKAR , Ning XU
CPC classification number: G09G3/3406 , G06K9/00711 , G09G3/34 , G09G3/36 , G09G2310/0235 , G09G2320/0233 , G09G2320/0247 , G09G2320/0271 , G09G2320/0276 , G09G2320/064 , G09G2320/0646 , G09G2320/0653 , G09G2320/066 , G09G2320/103 , G09G2340/16 , G09G2360/16 , G09G2370/04
Abstract: Systems and methods are disclosed for dynamically adjusting the backlight of a display during video playback. Given an input video stream and associated minimum, average, or maximum luminance values of the video frames in the video stream, values of a function of the frame min, mid, or max luminance values are filtered using a temporal filter to generate a filtered output value for each frame. The instantaneous dynamic range of a target display is determined based on the filtered output value and the minimum and maximum brightness values of the display. A backlight control level is computed based on the instantaneous dynamic range, and the input signal is tone mapped by a display management process to be displayed on the target display at the selected backlight level. The design of a temporal filter based on an exponential moving average filter and scene-change detection is presented.
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10.发明申请公开(公告)号：US20250117885A1
公开(公告)日：2025-04-10
申请号：US18836221
申请日：2023-02-03
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Doh-Suk KIM , Jeffrey RIEDMILLER , Sean Thomas MCCARTHY , Scott DALY
Abstract: A method may include generating a hybrid image associated with a first interpretation corresponding to a first value of a media parameter and a second interpretation corresponding to a second value of the media parameter. The hybrid image may include a first visibility ratio between the first interpretation and the second interpretation. The method may include refining the hybrid image to create a refined hybrid image that includes a second visibility ratio different than the first visibility ratio. The method may include displaying the refined hybrid image, and receiving a user input related to a first perception of the refined hybrid image by a user. The method may include determining, based at least in part on the user input, an optimized value of the media parameter, and providing output media for display to the user to a playback device according to the optimized value of the media parameter.
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