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公开(公告)号：US20150043050A1
公开(公告)日：2015-02-12
申请号：US14521832
申请日：2014-10-23
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Lorne A. Whitehead , Gregory John Ward , Wolfgang Stuerzlinger , Helge Seetzen , Don Graham
CPC classification number: G02F1/01 , G02F1/133524 , G02F1/133603 , G02F1/1347 , G02F2001/133613 , G09G3/32 , G09G3/34 , G09G3/3426 , G09G3/3611 , G09G2300/023 , G09G2310/024 , G09G2320/0233 , G09G2320/0271 , G09G2320/043 , G09G2320/0626 , G09G2320/0633 , G09G2320/064 , G09G2320/0646 , G09G2320/066 , G09G2320/0693 , G09G2330/08 , G09G2360/145 , G09G2360/16 , H01J63/06 , H04N9/3102 , H04N9/3126 , H04N9/3155 , H04N9/3194 , H04N9/3197 , H05B33/0857
Abstract: A display has a screen which incorporates a light modulator. The screen may be a front projection screen or a rear-projection screen. The screen is illuminated with light from a light source comprising an array of controllable light-emitters. The controllable-emitters and elements of the light modulator may be controlled to adjust the intensity of light emanating from corresponding areas on the screen. The display may provide a high dynamic range.
Abstract translation: 显示器具有包含光调制器的屏幕。 屏幕可以是前投影屏幕或背投屏幕。 屏幕被来自包括可控光发射器阵列的光源的光照射。 可以控制光调制器的可控发射器和元件以调节从屏幕上的相应区域发出的光的强度。 显示器可以提供高动态范围。
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公开(公告)号：US08684533B2
公开(公告)日：2014-04-01
申请号：US13757822
申请日：2013-02-03
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Lorne A. Whitehead , Gregory John Ward , Wolfgang Stuerzlinger , Helge Seetzen
IPC: G03B21/14
CPC classification number: G03B21/60 , G02F1/133504 , G02F1/133526 , G02F1/133553 , G02F1/1347 , G02F1/167 , G03B21/14 , G03B21/2053 , G03B21/26 , G03B21/56 , G03B21/567 , G03B21/625 , G09G3/001 , G09G3/3426 , G09G5/10 , G09G2300/023 , G09G2310/024 , G09G2320/0233 , G09G2320/0271 , G09G2320/0633 , G09G2320/064 , H04N5/7416 , H04N9/31 , H04N9/3126 , H04N9/3138 , H04N9/3188
Abstract: A locally dimmed display has a spatial light modulator illuminated by a light source. The spatial light modulator is illuminated with a low resolution version of a desired image. The illumination may comprise a series of lighting elements that vary smoothly from one element to another at the spatial light modulator.
Abstract translation: 局部变暗的显示器具有由光源照明的空间光调制器。 空间光调制器以所需图像的低分辨率版本照亮。 照明可以包括在空间光调制器处从一个元件平滑地变化到另一个元件的一系列照明元件。
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53.发明申请ELECTRONIC CAMERA HAVING MULTIPLE SENSORS FOR CAPTURING HIGH DYNAMIC RANGE IMAGES AND RELATED METHODS 审中-公开具有用于捕获高动态范围图像的多个传感器的电子摄像机及相关方法公开(公告)号：US20130300887A1
公开(公告)日：2013-11-14
申请号：US13942006
申请日：2013-07-15
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Gregory John Ward , Helge Seetzen , Wolfgang Heidrich
IPC: H04N5/235
CPC classification number: H04N5/2355 , H04N5/2251 , H04N5/2253 , H04N5/2258 , H04N5/23232 , H04N5/235
Abstract: A camera has two distinct image sensor arrays. The image sensor arrays are at least one of different types and different resolutions. The image sensor arrays have different dynamic ranges such that one of the image sensor arrays is a high dynamic range image sensor array configured to capture a wider range of light intensity than the other of the image sensor arrays. The camera has an imaging mechanism configured to combine information collected by each of the image sensor arrays to produce a high dynamic range image. The image sensor arrays include one low resolution image sensor array having a high dynamic range, and one high resolution image sensor array having a normal dynamic range smaller than the high dynamic range wherein luminance values within the normal dynamic range represent a subset of luminance values within the high dynamic range.
Abstract translation: 相机具有两个不同的图像传感器阵列。 图像传感器阵列是不同类型和不同分辨率中的至少一种。 图像传感器阵列具有不同的动态范围，使得图像传感器阵列之一是被配置为捕获比另一个图像传感器阵列更宽的光强度范围的高动态范围图像传感器阵列。 相机具有被配置为组合由每个图像传感器阵列收集的信息以产生高动态范围图像的成像机构。 图像传感器阵列包括具有高动态范围的一个低分辨率图像传感器阵列和一个具有小于高动态范围的正常动态范围的一个高分辨率图像传感器阵列，其中正常动态范围内的亮度值表示内部的亮度值的子集 动态范围高。
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公开(公告)号：US11501724B2
公开(公告)日：2022-11-15
申请号：US17216522
申请日：2021-03-29
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Lorne A. Whitehead , Helge Seetzen , Gregory John Ward , Wolfgang Heidrich
Abstract: Apparatus and methods are provided that employ one or more of a variety of techniques for reducing the time required to display high resolution images on a high dynamic range display having a light source layer and a display layer. In one technique, the image resolution is reduced, an effective luminance pattern is determined for the reduced resolution image, and the resolution of the effective luminance pattern is then increased to the resolution of the display layer. In another technique, the light source layer's point spread function is decomposed into a plurality of components, and an effective luminance pattern is determined for each component. The effective luminance patterns are then combined to produce a total effective luminance pattern. Additional image display time reduction techniques are provided.
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公开(公告)号：US11418817B2
公开(公告)日：2022-08-16
申请号：US15228370
申请日：2016-08-04
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Gregory John Ward , Maryann Simmons
IPC: H04N19/98 , H04N19/126 , H04N19/463 , G06T5/00 , H04N1/387 , H04N19/30 , G09G5/10 , H04N19/182 , H04N19/186 , H04N19/184
Abstract: A data structure defining a high dynamic range image comprises a tone map having a reduced dynamic range and HDR information. The high dynamic range image can be reconstructed from the tone map and the HDR information. The data structure can be backwards compatible with legacy hardware or software viewers. The data structure may comprise a JFIF file having the tone map encoded as a JPEG image with the HDR information in an application extension or comment field of the JFIF file, or a MPEG file having the tone map encoded as a MPEG image with the HDR information in a video or audio channel of the MPEG file. Apparatus and methods for encoding or decoding the data structure may apply pre- or post correction to compensate for lossy encoding of the high dynamic range information.
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Patent Agency Ranking
公开(公告)号：US11378840B2
公开(公告)日：2022-07-05
申请号：US16533410
申请日：2019-08-06
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Lorne A. Whitehead , Gregory John Ward , Wolfgang Stuerzlinger , Helge Seetzen , Don Graham
IPC: G02F1/01 , G02F1/1335 , G02F1/1347 , G09G3/34 , G09G3/36 , H01J63/06 , H04N9/31 , H05B33/08 , G09G3/32 , G02F1/13357 , H05B45/20
Abstract: A display has a screen which incorporates a light modulator. The screen may be a front projection screen or a rear-projection screen. The screen is illuminated with light from a light source comprising an array of controllable light-emitters. The controllable-emitters and elements of the light modulator may be controlled to adjust the intensity of light emanating from corresponding areas on the screen. The display may provide a high dynamic range.
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公开(公告)号：US11258957B2
公开(公告)日：2022-02-22
申请号：US17274165
申请日：2019-09-05
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Jon S. McElvain , Walter C. Gish , Jonathan Robert Miller , Gregory John Ward , Robin Atkins
Abstract: An auto exposure method for an image sensor includes (a) evaluating variance, for each of a plurality of histograms of the pixel values from a respective plurality of individual exposures of the image sensor at respective exposure 5 time settings, of contribution from individual bins of the histogram to total entropy of the histogram, to determine an optimal exposure time for the image sensor corresponding to a minimum value of the variance, and (b) outputting the optimal exposure time to the image sensor.
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58.发明授权公开(公告)号：US10750137B2
公开(公告)日：2020-08-18
申请号：US16363662
申请日：2019-03-25
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Helge Seetzen , Lorne A. Whitehead , Gregory John Ward
IPC: H04N9/31 , G02F1/13357 , G02F1/1335 , G03B21/20 , G02B5/32 , F21V8/00 , G09G3/34
Abstract: A backlight for a display comprises a plurality of independently controllable light sources and inclined surfaces inclining in a radially outward direction from each light source for shaping the distribution of emitted light. The light sources may each comprise a group of differently-colored light emitters. The backlight may include light integrators configured to mix light of the differently-colored light emitters. Inclined surfaces for shaping the distribution of emitted light may be arranged around exits of the light integrators.
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公开(公告)号：US10416480B2
公开(公告)日：2019-09-17
申请号：US15001068
申请日：2016-01-19
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Lorne A. Whitehead , Gregory John Ward , Wolfgang Stuerzlinger , Helge Seetzen , Don Graham
IPC: G02F1/01 , H04N9/31 , G02F1/1347 , G09G3/32 , G09G3/36 , H01J63/06 , H05B33/08 , G02F1/1335 , G09G3/34
Abstract: A display has a screen which incorporates a light modulator. The screen may be a front projection screen or a rear-projection screen. The screen is illuminated with light from a light source comprising an array of controllable light-emitters. The controllable-emitters and elements of the light modulator may be controlled to adjust the intensity of light emanating from corresponding areas on the screen. The display may provide a high dynamic range.
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公开(公告)号：US10395421B2
公开(公告)日：2019-08-27
申请号：US15746180
申请日：2016-07-21
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Timo Kunkel , Patrick Griffis , Gregory John Ward
Abstract: Directional image sensor data may be acquired with one or more directional image sensors. A light source and illumination image may be generated based on the directional image sensor data. A number of operations may be caused to be performed for an image based at least in part on light source information in the light source image. The operations may include display management operations, device positional operations, augmented reality superimposition operations, ambient light control operations, etc.
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