-
公开(公告)号：US20250118236A1
公开(公告)日：2025-04-10
申请号：US18832307
申请日：2023-01-31
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Ajit Ninan
Abstract: Image data is received for rendering an image on an image display to a viewer (402). The image data specifies a pixel value of the image for a pixel of the image display to render. The pixel value for the pixel includes multiple component pixel values corresponding to multiple color components of a color space. A color gamut locational value of the pixel value is computed based on two or more component pixel values in the multiple component pixel values of the pixel value specified for the pixel (404). The color gamut locational value is used to determine whether bandwidth broadening is to be applied to image rendering light produced by the pixel of the image display to render the pixel value (406). The image rendering light is directed to the viewer.
-
公开(公告)号：US20250111470A1
公开(公告)日：2025-04-03
申请号：US18833145
申请日：2023-01-30
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Ajit Ninan , Paul Holmberg
Abstract: A communication client device operated by a first user in a communication session receives a viewing direction tracking data portion indicating a view direction of a second user in the communication session. It is determined that the view direction of the second user is towards a third user at a first time point in the communication session. The view direction of the second user is used to modify a pre-adapted visual depiction of the second user into an adapted visual depiction of the second user. The adapted visual depiction of the second user is rendered, to the first user, on an image display operating with the communication client device.
-
公开(公告)号：US20250106410A1
公开(公告)日：2025-03-27
申请号：US18832349
申请日：2023-01-30
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Ajit Ninan , Gregory John Ward
IPC: H04N19/186 , H04N19/105 , H04N19/117 , H04N19/34 , H04N19/42
Abstract: An input image to be coded into a video signal and a target image are received. The input image and the target image depict same visual content. One or more beta scaling method indicators and one or more sets of one or more beta scale parameters are generated. The one or more beta scaling method indicators indicate one or more beta scaling methods that use the one or more sets of beta scale parameters to perform beta scaling operations on the input image to generate a reconstructed image to approximate the target image. The input image, along with the one or more beta scaling method indicators and the one or more sets of beta scale parameters. is encoded into the video signal for allowing a recipient device of the video signal to generate the reconstructed image.
-
公开(公告)号：US11962819B2
公开(公告)日：2024-04-16
申请号：US17714574
申请日：2022-04-06
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Ajit Ninan
IPC: H04N21/2343 , H04N21/442
CPC classification number: H04N21/234345 , H04N21/44218
Abstract: First foviated images are streamed to a streaming client. The first foviated images with first image metadata sets are used to generate first display mapped images for rendering to a viewer at first time points. View direction data is collected and used to determine a second view direction of the viewer at a second time point. A second foviated image and a second image metadata set are generated from a second HDR source image in reference to the second view direction of the viewer and used to generate a second display mapped image for rendering to the viewer at the second time point. The second image metadata set comprises a display management metadata portions for adapting a focal-vision and peripheral-vision image portions to corresponding image portions in the second display mapped image. The focal-vision display management metadata portion is generated with a predicted light adaptation level of the viewer for the second time point. The second foviated image and the second image metadata set are transmitted to the video streaming client.
-
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.
-
Patent Agency Ranking
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.
-
公开(公告)号：US11363250B2
公开(公告)日：2022-06-14
申请号：US15945237
申请日：2018-04-04
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Ajit Ninan , Neil Mammen
IPC: H04N13/344 , H04N13/341 , H04N13/337 , H04N5/253 , H04N13/128 , H04N13/346 , H04N13/00
Abstract: A wearable device comprises a left view optical stack for a viewer to view left view cinema display images rendered on a cinema display and a right view optical stack for the viewer to view right view cinema display images rendered on the cinema display. The left view cinema display images and the right view cinema display images form stereoscopic cinema images. The wearable device further comprises a left view imager that renders left view device display images, to the viewer, on a device display, and a right view imager that renders right view device display images, to the viewer, on the device display. The left view device display images and the right view device display images form stereoscopic device images complementary to the stereoscopic cinema images.
-
公开(公告)号：US11074875B2
公开(公告)日：2021-07-27
申请号：US16863451
申请日：2020-04-30
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Ajit Ninan , Chun Chi Wan
Abstract: Techniques for driving a dual modulation display include generating backlight drive signals to drive individually-controllable illumination sources. The illumination sources emit first light onto a light conversion layer. The light conversion layer converts the first light into second light. The light conversion layer can include quantum dots or phosphor materials. Modulation drive signals are generated to determine transmission of the second light through individual subpixels of the display. These modulation drive signals can be adjusted based on one or more light field simulations. The light field simulations can include: (i) a color shift for a pixel based on a point spread function of the illumination sources; (ii) binning difference of individual illumination sources; (iii) temperature dependence of display components on performance; or (iv) combinations thereof.
-
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.
-
公开(公告)号：US10726574B2
公开(公告)日：2020-07-28
申请号：US15949536
申请日：2018-04-10
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Ajit Ninan , Neil Mammen
IPC: G06T7/70 , G02B27/01 , G02B27/00 , G06T7/285 , G06F3/01 , G06T7/521 , G06F3/03 , G06T7/593 , G02B30/24 , G02B30/25
Abstract: At a first time point, a first light capturing device at a first spatial location in a three-dimensional (3D) space captures first light rays from light sources located at designated spatial locations on a viewer device in the 3D space. At the first time point, a second light capturing device at a second spatial location in the 3D space captures second light rays from the light sources located at the designated spatial locations on the viewer device in the 3D space. Based on the first light rays captured by the first light capturing device and the second light rays captured by the second light capturing device, at least one of a spatial position and a spatial direction, at the first time point, of the viewer device is determined.
-
-
-
-
-
-
-
-
-
Search Results
104
records
(took 0.026 seconds)
