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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：US10460509B2
公开(公告)日：2019-10-29
申请号：US16179715
申请日：2018-11-02
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Haricharan Lakshman , Ajit Ninan
Abstract: A target view to a 3D scene depicted by a multiview image is determined. The multiview image comprising sampled views at sampled view positions distributed throughout a viewing volume. Each sampled view in the sampled views comprises a wide-field-of-view (WFOV) image and a WFOV depth map as seen from a respective sampled view position in the sampled view positions. The target view is used to select, from the sampled views, a set of sampled views. A display image is caused to be rendered on a display of a wearable device. The display image is generated based on a WFOV image and a WFOV depth map for each sampled view in the set of sampled views.
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公开(公告)号：US11218729B2
公开(公告)日：2022-01-04
申请号：US16847539
申请日：2020-04-13
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Haricharan Lakshman , Ajit Ninan
IPC: H04N19/597 , H04N13/161 , G06T15/20 , G06T19/00 , H04N13/111
Abstract: A target view to a 3D scene depicted by a multiview image is determined. The multiview image comprises multiple sampled views. Each sampled view comprises multiple texture images and multiple depth images in multiple image layers. The target view is used to select, from the multiple sampled views of the multiview image, sampled views. A texture image and a depth image for each sampled view in the selected sampled views are encoded into a multiview video signal to be transmitted to a downstream device.
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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：US11670039B2
公开(公告)日：2023-06-06
申请号：US16809344
申请日：2020-03-04
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Wenhui Jia , Haricharan Lakshman , Ajit Ninan
CPC classification number: G06T15/205 , G06T3/0093 , G06T5/005 , G06T7/529 , G06T19/006 , H04N19/46 , G06T2207/10028 , G06T2215/16
Abstract: Bordering pixels delineating a texture hole region are identified in a target image. Depth values of the bordering pixels are automatically clustered into two depth value clusters. A specific estimation direction is selected from multiple candidate estimation directions for a texture hole pixel in a texture hole region. A depth value of the texture hole pixel is estimated by interpolating depth values of two bordering background pixels in the specific estimation direction. The estimated depth value is used to warp the texture hole pixel into a reference view represented by a temporal reference image. A pixel value of the texture hole pixel is predicted based on a reference pixel value of a reference pixel from the reference image to which the texture hole pixel is warped using the estimated depth value.
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Patent Agency Ranking
公开(公告)号：US10652579B2
公开(公告)日：2020-05-12
申请号：US16003070
申请日：2018-06-07
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Haricharan Lakshman , Ajit Ninan
IPC: H04N19/597 , H04N13/161 , G06T15/20 , G06T19/00 , H04N13/111
Abstract: A target view to a 3D scene depicted by a multiview image is determined. The multiview image comprises multiple sampled views. Each sampled view comprises multiple texture images and multiple depth images in multiple image layers. The target view is used to select, from the multiple sampled views of the multiview image, sampled views. A texture image and a depth image for each sampled view in the selected sampled views are encoded into a multiview video signal to be transmitted to a downstream device.
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公开(公告)号：US10600233B2
公开(公告)日：2020-03-24
申请号：US16579336
申请日：2019-09-23
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Haricharan Lakshman , Ajit Ninan
Abstract: A target view to a 3D scene depicted by a multiview image is determined. The multiview image comprising sampled views at sampled view positions distributed throughout a viewing volume. Each sampled view in the sampled views comprises a wide-field-of-view (WFOV) image and a WFOV depth map as seen from a respective sampled view position in the sampled view positions. The target view is used to select, from the sampled views, a set of sampled views. A display image is caused to be rendered on a display of a wearable device. The display image is generated based on a WFOV image and a WFOV depth map for each sampled view in the set of sampled views.
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公开(公告)号：US11375178B2
公开(公告)日：2022-06-28
申请号：US16809397
申请日：2020-03-04
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Haricharan Lakshman , Wenhui Jia , Jasper Chao , Shwetha Ram , Domagoj Baricevic , Ajit Ninan
IPC: H04N13/351
Abstract: A device and method for video rendering. The device includes a memory and an electronic processor. The electronic processor is configured to receive, from a source device, video data including multiple reference viewpoints, determine a target image plane corresponding to a target viewpoint, determine, within the target image plane, one or more target image regions, and determine, for each target image region, a proxy image region larger than the corresponding target image region. The electronic processor is configured to determine, for each target image region, a plurality of reference pixels that fit within the corresponding proxy image region, project, for each target image region, the plurality of reference pixels that fit within the corresponding proxy image region to the target image region, producing a rendered target region from each target image region, and composite one or more of the rendered target regions to create video rendering.
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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：US11849104B2
公开(公告)日：2023-12-19
申请号：US17849790
申请日：2022-06-27
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Haricharan Lakshman , Wenhui Jia , Jasper Chao , Shwetha Ram , Domagoj Baricevic , Ajit Ninan
IPC: H04N13/351
CPC classification number: H04N13/351
Abstract: A device and method for video rendering. The device includes a memory and an electronic processor. The electronic processor is configured to receive, from a source device, video data including multiple reference viewpoints, determine a target image plane corresponding to a target viewpoint, determine, within the target image plane, one or more target image regions, and determine, for each target image region, a proxy image region larger than the corresponding target image region. The electronic processor is configured to determine, for each target image region, a plurality of reference pixels that fit within the corresponding proxy image region, project, for each target image region, the plurality of reference pixels that fit within the corresponding proxy image region to the target image region, producing a rendered target region from each target image region, and composite one or more of the rendered target regions to create video rendering.
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