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公开(公告)号：US11019302B2
公开(公告)日：2021-05-25
申请号：US16650821
申请日：2018-09-27
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Jaclyn Anne Pytlarz , Robin Atkins , Elizabeth G. Pieri , Alexandre Chapiro , Scott Daly
IPC: H04N7/01
Abstract: Methods for encoding and decoding high-dynamic range signals are presented. The signals are encoded in a high frame rate and are accompanied by frame-rate conversion metadata defining a preferred set of frame-rate down-conversion parameters, which are determined according to the maximum luminance of a target display, display playback priority modes, or judder control modes. A decoder uses the frame-rate conversion metadata to apply frame-rate down-conversion to the input high-frame-rate signal according to at least the maximum luminance of the target display and/or the characteristics of the signal itself. Frame-based and pixel-based frame-rate conversions, and judder models for judder control via metadata are also discussed.
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公开(公告)号：US20200134780A1
公开(公告)日：2020-04-30
申请号：US16660548
申请日：2019-10-22
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Alexandre Chapiro , Chaitanya Atluru , Chun Chi Wan , Haricharan Lakshman , William Rozzi , Shane Ruggieri , Ajit Ninan
Abstract: Peripheral-vision expanded images are streamed to a video streaming client. The peripheral-vision expanded images are generated from source images in reference to view directions of the viewer at respective time points. View direction data is collected and received in real time while the viewer is viewing display images derived from the peripheral-vision expanded images. A second peripheral-vision expanded image is generated from a second source image in reference to a second view direction of the viewer at a second time point. The second peripheral-vision expanded image has a focal-vision image portion covering the second view direction of the viewer and a peripheral-vision image portion outside the focal-vision image portion. The second peripheral-vision expanded image is transmitted to the video streaming client.
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Patent Agency Ranking
公开(公告)号：US10769754B2
公开(公告)日：2020-09-08
申请号：US16660548
申请日：2019-10-22
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Alexandre Chapiro , Chaitanya Atluru , Chun Chi Wan , Haricharan Lakshman , William Rozzi , Shane Ruggieri , Ajit Ninan
Abstract: Peripheral-vision expanded images are streamed to a video streaming client. The peripheral-vision expanded images are generated from source images in reference to view directions of the viewer at respective time points. View direction data is collected and received in real time while the viewer is viewing display images derived from the peripheral-vision expanded images. A second peripheral-vision expanded image is generated from a second source image in reference to a second view direction of the viewer at a second time point. The second peripheral-vision expanded image has a focal-vision image portion covering the second view direction of the viewer and a peripheral-vision image portion outside the focal-vision image portion. The second peripheral-vision expanded image is transmitted to the video streaming client.
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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：US20200372605A1
公开(公告)日：2020-11-26
申请号：US16989175
申请日：2020-08-10
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Alexandre Chapiro , Chaitanya Atluru , Chun Chi Wan , Haricharan Lakshman , William Rozzi , Shane Ruggieri , Ajit Ninan
Abstract: Peripheral-vision expanded images are streamed to a video streaming client. The peripheral-vision expanded images are generated from source images in reference to view directions of the viewer at respective time points. View direction data is collected and received in real time while the viewer is viewing display images derived from the peripheral-vision expanded images. A second peripheral-vision expanded image is generated from a second source image in reference to a second view direction of the viewer at a second time point. The second peripheral-vision expanded image has a focal-vision image portion covering the second view direction of the viewer and a peripheral-vision image portion outside the focal-vision image portion. The second peripheral-vision expanded image is transmitted to the video streaming client.
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公开(公告)号：US12300193B2
公开(公告)日：2025-05-13
申请号：US18111506
申请日：2023-02-17
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Alexandre Chapiro , Robin Atkins , Scott Daly
IPC: H04N21/485 , 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：US11461871B2
公开(公告)日：2022-10-04
申请号：US16989175
申请日：2020-08-10
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Alexandre Chapiro , Chaitanya Atluru , Chun Chi Wan , Haricharan Lakshman , William Rozzi , Shane Ruggieri , Ajit Ninan
Abstract: Peripheral-vision expanded images are streamed to a video streaming client. The peripheral-vision expanded images are generated from source images in reference to view directions of the viewer at respective time points. View direction data is collected and received in real time while the viewer is viewing display images derived from the peripheral-vision expanded images. A second peripheral-vision expanded image is generated from a second source image in reference to a second view direction of the viewer at a second time point. The second peripheral-vision expanded image has a focal-vision image portion covering the second view direction of the viewer and a peripheral-vision image portion outside the focal-vision image portion. The second peripheral-vision expanded image is transmitted to the video streaming client.
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