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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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公开(公告)号：US11778403B2
公开(公告)日：2023-10-03
申请号：US17263125
申请日：2019-07-25
Applicant: Dolby Laboratories Licensing Corporation
Inventor： McGregor Steele Joyner , Alex Brandmeyer , Scott Daly , Jeffrey Ross Baker , Andrea Fanelli , Poppy Anne Carrie Crum
CPC classification number: H04S7/301 , G06F18/214 , G06T7/11 , G06T7/70 , G06V40/10 , H04S1/002 , H04S7/303 , G06T2207/20081 , G06T2207/20084 , G06T2207/20132 , G06T2207/30196 , H04S2400/15 , H04S2420/01
Abstract: An apparatus and method of generating personalized HRTFs. The system is prepared by calculating a model for HRTFs described as the relationship between a finite example set of input data, namely anthropometric measures and demographic information for a set of individuals, and a corresponding set of output data, namely HRTFs numerically simulated using a high-resolution database of 3D scans of the same set of individuals. At the time of use, the system queries the user for their demographic information, and then from a series of images of the user, the system detects and measures various anthropometric characteristics. The system then applies the prepared model to the anthropometric and demographic data as part of generating a personalized HRTF. In this manner, the personalized HRTF can be generated with more convenience than by performing a high-resolution scan or an acoustic measurement of the user, and with less computational complexity than by numerically simulating their HRTF.
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公开(公告)号：US11587526B2
公开(公告)日：2023-02-21
申请号：US16717871
申请日：2019-12-17
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Alexandre Chapiro , Robin Atkins , Scott Daly
IPC: G09G5/10
Abstract: One or more media contents are received. A viewer's light adaptive states are predicted as a function of time as if the viewer is watching display mapped images derived from the one or more media contents. The viewer's light adaptive states are used to detect an excessive change in luminance in a specific media content portion of the one or more media contents. The excessive change in luminance in the specific media content portion of the one or more media contents is caused to be reduced while the viewer is watching one or more corresponding display mapped images derived from the specific media content portion of the one or more media contents.
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公开(公告)号：US11477525B2
公开(公告)日：2022-10-18
申请号：US17281946
申请日：2019-09-30
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Scott Daly , Poppy Anne Carrie Crum , Evan David Gitterman , Shane Mario Ruggieri
IPC: H04N21/442 , H04N21/422 , H04N21/4223 , H04N21/84 , H04N21/41
Abstract: Creative intent input describing emotion expectations and narrative information relating to media content is received. Expected physiologically observable states relating to the media content are generated based on the creative intent input. An audiovisual content signal with the media content and media metadata comprising the physiologically observable states is provided to a playback apparatus. The audiovisual content signal causes the playback device to use physiological monitoring signals to determine, with respect to a viewer, assessed physiologically observable states relating to the media content and generate, based on the expected physiologically observable states and the assessed physiologically observable states, modified media content to be rendered to the viewer.
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公开(公告)号：US10419762B2
公开(公告)日：2019-09-17
申请号：US15555047
申请日：2016-03-01
Inventor： Jan Froehlich , Guan-Ming Su , Robin Atkins , Scott Daly , Jon Scott Miller
IPC: H04N19/124 , H04N19/136 , H04N19/98 , H04N19/117 , H04N19/132 , H04N19/156 , H04N19/182 , H04N19/154
Abstract: A content-adaptive quantizer processor receives an input image with an input bit depth. A noise-mask generation process is applied to the input image to generate a noise mask image which characterizes each pixel in the input image in terms of its perceptual relevance in masking quantization noise. A noise mask histogram is generated based on the input image and the noise mask image. A masking-noise level to bit-depth function is applied to the noise mask histogram to generate minimal bit depth values for each bin in the noise mask histogram. A codeword mapping function is generated based on the input bit depth, a target bit depth, and the minimal bit depth values. The codeword mapping function is applied to the input image to generate an output image in the target bit depth.
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Patent Agency Ranking
公开(公告)号：US10368031B2
公开(公告)日：2019-07-30
申请号：US15119117
申请日：2015-02-23
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Ning Xu , Kimball Darr Thurston, III , Scott Daly , James E. Crenshaw , Alfred She
IPC: H04N9/64 , H04N7/01 , H04N5/14 , H04N5/21 , G06K9/46 , G06K9/62 , G06T5/00 , H04N5/262 , G06T7/246 , H04N21/4402
Abstract: Methods and systems for controlling judder are disclosed. Judder can be introduced locally within a picture, to restore a judder feeling which is normally expected in films. Capture time and display time of frames can be manipulated to obtain a desired amount of judder. Frames can be interpolated to obtain a film with a higher frame rate and localized control of judder.
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公开(公告)号：US10242627B2
公开(公告)日：2019-03-26
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
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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公开(公告)号：US10027963B2
公开(公告)日：2018-07-17
申请号：US15035551
申请日：2014-11-10
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Guan-Ming Su , Qian Chen , Bongsun Lee , Scott Daly
IPC: H04N19/146 , H04N19/117 , H04N19/30 , H04N19/124
Abstract: An encoder receives an input enhanced dynamic range (EDR) image and a corresponding lower dynamic range (LDR) image to be coded at a given target rate. Before coding, a pre-dithering process is applied to the input LDR image to generate a dithered LDR image at a second bit depth, lower than its original bit depth. The pre-dithering process includes: generating uniformly-distributed noise, applying a spatial filter to the noise to generate low-pass or high-pass filtered noise, applying a temporal high pass or low pass filter to the spatially-filtered noise to generate output noise, adding the output noise to the input LDR image to generate a noise-enhanced LDR image, and quantizing the noise-enhanced image to generate the dithered LDR image. Selecting the characteristics of the dithering filters is based on both the target bit rate and luminance characteristics of the pixels in the input LDR image.
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39.发明授权公开(公告)号：US09959837B2
公开(公告)日：2018-05-01
申请号：US15610499
申请日：2017-05-31
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.
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公开(公告)号：US09762876B2
公开(公告)日：2017-09-12
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.
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