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公开(公告)号：US12101489B2
公开(公告)日：2024-09-24
申请号：US18006026
申请日：2021-08-02
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Chaitanya Atluru , Ajit Ninan
IPC: H04N19/167 , H04N19/129 , H04N19/176 , H04N19/50 , H04N19/70 , H04N19/91
CPC classification number: H04N19/167 , H04N19/129 , H04N19/176 , H04N19/70 , H04N19/50 , H04N19/91
Abstract: A non-random-access video stream is received. A first image block is encoded after second image blocks according to a non-random-access processing order. View direction data is received to indicate a viewer's view direction coinciding with a location covered by the first image block. The first image block is encoded into the random-access video stream before the second image blocks in a random-access processing order. The random-access video stream is delivered to a recipient decoding device operated by the viewer to cause the first image block to be processed and rendered before the second image blocks according to the random-access processing order.
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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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公开(公告)号：US20220210512A1
公开(公告)日：2022-06-30
申请号：US17695823
申请日：2022-03-15
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Chaitanya Atluru , Ajit Ninan
IPC: H04N21/4728 , H04N13/117 , H04N21/218 , H04N21/431 , H04N21/4402 , H04N21/84
Abstract: Scenes in video images are identified based on image content of the video images. Regional cross sections of the video images are determined based on the scenes in the video images. Image portions of the video images in the regional cross sections are encoded into multiple video sub-streams at multiple different spatiotemporal resolutions. An overall video stream that includes the multiple video sub-streams is transmitted to a streaming client device.
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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：US20210373340A1
公开(公告)日：2021-12-02
申请号：US17278010
申请日：2019-09-20
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Titus Marc DeVine , Chun Chi Wan , Chaitanya Atluru , Ajit NINAN
Abstract: A wearable device includes circuitry on substrate. The substrate is coupled to an optical element in an optical stack. A refractive index of the substrate perceptually matches a refractive index of the optical component. The circuitry is imperceptible to the viewer wearing the device, despite that the circuitry has a view of (or, as an example, an unobstructed line of sight to) the viewer's eye. The circuitry can include a camera or an emitter, or both. The camera captures one or more reflections of the emitter from the viewer's eye. In a specific embodiment, the substrate includes a waveguide, Fresnel lenses, or lens to bend light rays around from the circuitry to achieve the imperceptibility. In alternative embodiment, the circuitry can be a piezoelectric device, liquid crystal controller, or any electronic circuitry relevant for a wearable device.
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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：US11303966B2
公开(公告)日：2022-04-12
申请号：US16336628
申请日：2017-09-18
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Chaitanya Atluru , Ajit Ninan
IPC: H04N21/4728 , H04N21/84 , H04N13/117 , H04N21/4402 , H04N21/431 , H04N21/218
Abstract: Scenes in video images are identified based on image content of the video images. Regional cross sections of the video images are determined based on the scenes in the video images. Image portions of the video images in the regional cross sections are encoded into multiple video sub-streams at multiple different spatiotemporal resolutions. An overall video stream that includes the multiple video sub-streams is transmitted to a streaming client device.
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公开(公告)号：US11290699B2
公开(公告)日：2022-03-29
申请号：US15842703
申请日：2017-12-14
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Ajit Ninan , Chaitanya Atluru
IPC: H04N13/00 , H04N13/117 , H04N13/15 , H04N21/2343 , H04N21/6587 , G06F3/01 , H04N21/422 , H04N21/442 , H04L65/60
Abstract: View direction data of the viewer is collected in real time while the viewer is viewing a first reconstructed omnidirectional image. The view direction data is sent to the video streaming server to cause generating image layers from an omnidirectional image in reference to a view direction of the viewer. The image layers comprising a focal-vision image layer and a peripheral-vision image layer. A second reconstructed omnidirectional image is generated from the image layers. The second reconstructed omnidirectional image is subsequently rendered to the viewer.
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公开(公告)号：US10979721B2
公开(公告)日：2021-04-13
申请号：US15817058
申请日：2017-11-17
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Chaitanya Atluru , Ajit Ninan
IPC: H04N19/167 , G06K9/00 , G06K9/32 , H04N19/597 , H04N19/162 , H04N19/182
Abstract: Video images are rendered in viewports of content viewers. Each content viewer views video images through a respective viewport in the viewports. Spatial locations in the video images to which foveal visions of the content viewers are directed are determined. ROIs in the video images are identified based on the spatial locations in the video images.
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公开(公告)号：US12015787B2
公开(公告)日：2024-06-18
申请号：US17198085
申请日：2021-03-10
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Chaitanya Atluru , Ajit Ninan
IPC: H04N19/167 , G06V10/25 , G06V20/40 , H04N19/162 , H04N19/182 , H04N19/597
CPC classification number: H04N19/167 , G06V10/25 , G06V20/40 , G06V20/41 , H04N19/162 , H04N19/597 , H04N19/182
Abstract: Video images are rendered in viewports of content viewers. Each content viewer views video images through a respective viewport in the viewports. Spatial locations in the video images to which foveal visions of the content viewers are directed are determined. ROIs in the video images are identified based on the spatial locations in the video images.
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