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公开(公告)号:US20230216995A1
公开(公告)日:2023-07-06
申请号:US18181564
申请日:2023-03-10
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor: Gerwin Damberg , Martin J. Richards , Craig Todd
CPC classification number: H04N9/3147 , H04N9/3161 , H04N9/3182 , G06T11/001 , G03H1/0005 , G03H1/0891 , G03H1/16 , G03H1/2249 , G03H1/2294 , G03H2001/0088 , G03H2001/2284
Abstract: Projection displays include a highlight projector and a main projector. Highlights projected by the highlight projector boost luminance in highlight areas of a base image projected by the main projector. Various highlight projectors including steerable beams, holographic projectors and spatial light modulators are described.
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公开(公告)号:US11637996B2
公开(公告)日:2023-04-25
申请号:US16660585
申请日:2019-10-22
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor: Gerwin Damberg , Martin J. Richards , Craig Todd
Abstract: Projection displays include a highlight projector and a main projector. Highlights projected by the highlight projector boost luminance in highlight areas of a base image projected by the main projector. Various highlight projectors are based on steerable beams, holographic projectors, and spatial light modulators. A Fourier transform component and a mask positioned on the Fourier plane thereof are used to attenuate or eliminate selected spatial frequencies, e.g., to increase peak luminance without raising the black level of the projected image.
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公开(公告)号:US09466098B2
公开(公告)日:2016-10-11
申请号:US14554783
申请日:2014-11-26
Applicant: Dolby Laboratories Licensing Corporation
Inventor: Anders Ballestad , Gerwin Damberg
CPC classification number: G06T5/009 , G06K9/00234 , G06T5/40 , G06T2207/10024 , G06T2207/20012 , G06T2207/30201
Abstract: A global image adjustment, such as dynamic range adjustment is established based on image characteristics. The image adjustment is based more heavily on pixel values in image areas identified as being important by one or more saliency mapping algorithms. In one application to dynamic range adjustment, a saliency map is applied to create a weighed histogram and a transformation is determined from the weighted histogram. Artifacts typical of local adjustment schemes may be avoided.
Abstract translation: 基于图像特征建立全局图像调整,如动态范围调整。 图像调整更多地依赖于通过一个或多个显着性映射算法被识别为重要的图像区域中的像素值。 在一个应用于动态范围调整的应用中,应用显着图来创建称重直方图,并从加权直方图确定变换。 可以避免典型的局部调整方案的伪像。
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公开(公告)号:US20190005919A1
公开(公告)日:2019-01-03
申请号:US15999497
申请日:2018-08-20
Applicant: Dolby Laboratories Licensing Corporation
Inventor: Helge Seetzen , Robin Atkins , Neil W. Messmer , Gerwin Damberg
Abstract: Apparatus and methods for mapping video signal parameters such as tone and color may be applied at various points in a video generation and delivery pipeline. apparatus may be configured to control mappings based on a range of inputs which may include one or more of: ambient conditions, user inputs, control information, adaptation models. Apparatus and methods may be applied to display video or other images so as to preserve a creative intent embodied in video or other image data.
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公开(公告)号:US10462437B2
公开(公告)日:2019-10-29
申请号:US15147238
申请日:2016-05-05
Applicant: Dolby Laboratories Licensing Corporation
Inventor: Gerwin Damberg , Martin J. Richards , Craig Todd
Abstract: Projection displays include a highlight projector and a main projector. Highlights projected by the highlight projector boost luminance in highlight areas of a base image projected by the main projector. Various highlight projectors including steerable beams, holographic projectors and spatial light modulators are described.
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