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61. 发明申请

US20140078716A1 Quantum Dot/Remote Phosphor Display System Improvements 有权
标题翻译：量子点/远程荧光体显示系统的改进
公开(公告)号：US20140078716A1
公开(公告)日：2014-03-20
申请号：US14030896
申请日：2013-09-18
申请人： Dolby Laboratories Licensing Corporation
发明人： Ajit Ninan , Chun Chi Wan , Timo Kunkel , Michael E. Miller
IPC分类号： F21V9/10 , F21V9/08
CPC分类号： F21V9/40 , B82Y20/00 , F21V9/08 , F21V9/30 , G02B5/201 , G02B5/22 , G02F1/133514 , G02F1/133516 , G02F1/133617 , G02F2001/133614 , G02F2202/046 , H01L27/322 , H01L51/56 , H01L2251/5369 , H04N13/334 , Y10S977/774
摘要： A display system comprises light sources configured to emit first light with a first spectral power distribution; light regeneration layers configured to be stimulated by the first light and to convert at least a portion of the first light and recycled light into second light, the second light comprising (a) primary spectral components that correspond to primary colors and (b) secondary spectral components that do not correspond to the primary colors; and notch filter layers configured to receive a portion of the second light and to filter out the secondary spectral components from the portion of the second light. The portion of the second light can be directed to a viewer of the display system and configured to render images viewable to the viewer.
摘要翻译：显示系统包括被配置为以第一光谱功率分布发射第一光的光源; 光再生层被配置为被第一光刺激并且将至少一部分第一光和再循环光转换成第二光，第二光包括（a）对应于原色的主光谱分量和（b）二次光谱不对应于原色的组件; 以及陷波滤波器层，被配置为接收所述第二光的一部分并且从所述第二光的所述部分滤出所述次级光谱分量。第二光的部分可以被引导到显示系统的观看者并且被配置为使得可以向观看者观看图像。

62. 发明申请

US20130294689A1 Encoding, Decoding, and Representing High Dynamic Range Images 有权
公开(公告)号：US20130294689A1
公开(公告)日：2013-11-07
申请号：US13938795
申请日：2013-07-10
申请人： Dolby Laboratories Licensing Corporation
发明人： Wenhui Jia , Ajit Ninan , Arkady Ten , Gregory John Ward
IPC分类号： G06T9/00
CPC分类号： H04N19/124 , G06T9/00 , H04N5/2355 , H04N9/67 , H04N9/77 , H04N19/136 , H04N19/169 , H04N19/182 , H04N19/186 , H04N19/30 , H04N19/44 , H04N19/50 , H04N19/70
摘要： Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.

63. 发明申请

US20130071022A1 Encoding, Decoding, and Representing High Dynamic Range Images 有权
公开(公告)号：US20130071022A1
公开(公告)日：2013-03-21
申请号：US13675643
申请日：2012-11-13
申请人： Dolby Laboratories Licensing Corporation
发明人： Wenhui Jia , Ajit Ninan , Arkady Ten , Gregory John Ward
IPC分类号： G06T9/00
CPC分类号： G06T9/00 , H04N9/67 , H04N9/77
摘要： Techniques are provided to encode and decode image data comprising a tone mapped (TM) image with HDR reconstruction data in the form of luminance ratios and color residual values. In an example embodiment, luminance ratio values and residual values in color channels of a color space are generated on an individual pixel basis based on a high dynamic range (HDR) image and a derivative tone-mapped (TM) image that comprises one or more color alterations that would not be recoverable from the TM image with a luminance ratio image. The TM image with HDR reconstruction data derived from the luminance ratio values and the color-channel residual values may be outputted in an image file to a downstream device, for example, for decoding, rendering, and/or storing. The image file may be decoded to generate a restored HDR image free of the color alterations.

64. 发明授权

US11461871B2 Virtual reality cinema-immersive movie watching for headmounted displays 有权
公开(公告)号：US11461871B2
公开(公告)日：2022-10-04
申请号：US16989175
申请日：2020-08-10
申请人： Dolby Laboratories Licensing Corporation
发明人： Alexandre Chapiro , Chaitanya Atluru , Chun Chi Wan , Haricharan Lakshman , William Rozzi , Shane Ruggieri , Ajit Ninan
IPC分类号： G06T3/00 , G06T19/00 , G06F3/01 , G02B27/01
摘要： 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.

65. 发明授权

US11330309B2 Foviation and HDR 有权
公开(公告)号：US11330309B2
公开(公告)日：2022-05-10
申请号：US17260521
申请日：2019-07-15
申请人： Dolby Laboratories Licensing Corporation
发明人： Ajit Ninan
IPC分类号： H04N21/2343 , H04N21/442
摘要： 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.

66. 发明申请

US20210099693A1 POSITIONAL ZERO LATENCY 有权
公开(公告)号：US20210099693A1
公开(公告)日：2021-04-01
申请号：US17117145
申请日：2020-12-10
申请人： Dolby Laboratories Licensing Corporation
发明人： Ajit Ninan
IPC分类号： H04N13/383 , H04N13/194 , H04N13/139 , H04N13/161 , G01S3/00 , H04N21/81 , H04N21/2343 , H04N13/178
摘要： Based on viewing tracking data, a viewer's view direction to a three-dimensional (3D) scene depicted by a first video image is determined. The first video image has been streamed in a video stream to the streaming client device before the first time point and rendered with the streaming client device to the viewer at the first time point. Based on the viewer's view direction, a target view portion is identified in a second video image to be streamed in the video stream to the streaming client device to be rendered at a second time point subsequent to the first time point. The target view portion is encoded into the video stream with a higher target spatiotemporal resolution than that used to encode remaining non-target view portions in the second video image.

67. 发明授权

US10460509B2 Parameterizing 3D scenes for volumetric viewing 有权
公开(公告)号：US10460509B2
公开(公告)日：2019-10-29
申请号：US16179715
申请日：2018-11-02
申请人： Dolby Laboratories Licensing Corporation
发明人： Haricharan Lakshman , Ajit Ninan
IPC分类号： G06T15/08 , G06T3/40 , G06T3/00 , G06T7/593 , G09G5/14 , H04N19/107
摘要： 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.

68. 发明授权

US10440379B2 Techniques for encoding, decoding and representing high dynamic range images 有权
公开(公告)号：US10440379B2
公开(公告)日：2019-10-08
申请号：US15110061
申请日：2015-01-06
申请人： Dolby Laboratories Licensing Corporation
发明人： Ajit Ninan
IPC分类号： G06K9/36 , H04N19/44 , H04N5/235 , H04N19/184 , H04N19/467 , H04N19/36 , H04N19/186 , G06F21/60
摘要： Techniques for high dynamic range image processing are presented. Base layer data, first checksum parameter, and residual ratio data for a high dynamic range (HDR) image are each received. A second checksum parameter is computed for the base layer data based upon the first SOF after the last APP11 marker segment and includes all following bytes up to and including the EOI marker. The first and second checksum parameters are compared to determine if base layer has been altered.

69. 发明授权

US10371884B2 Tiled assemblies for a high dynamic range display panel 有权
公开(公告)号：US10371884B2
公开(公告)日：2019-08-06
申请号：US15501400
申请日：2015-08-03
申请人： Dolby Laboratories Licensing Corporation
发明人： Ajit Ninan , Robin Atkins
IPC分类号： G02F1/13357 , F21V8/00
摘要： Techniques are provided for a high dynamic range panel that includes an array of light sources (202,203) illuminating a corresponding array of light guides (204, 206). A light source (202) of the array illuminates a first light guide (204). The light source directly underlies, such as in a cavity (208), a second light guide (206) that is adjacent to the first light guide. The light source (202) does not extend below a bottom side (214) of either the first light guide or the second light guide to reduce thickness of the panel. The light source (202) and the first light guide (204) can be integrated as a tile assembly. Alternatively, the light source (202) and the second light guide (206) can be an integrated tile assembly. In a specific embodiment, the light source emits a blue or ultraviolet light, which is converted by quantum dots to a different color.

70. 发明申请

US20190174125A1 POSITIONAL ZERO LATENCY 审中-公开
公开(公告)号：US20190174125A1
公开(公告)日：2019-06-06
申请号：US16209445
申请日：2018-12-04
申请人： Dolby Laboratories Licensing Corporation
发明人： Ajit Ninan
IPC分类号： H04N13/383 , H04N13/161 , H04N13/139 , H04N13/194
摘要： Based on viewing tracking data, a viewer's view direction to a three-dimensional (3D) scene depicted by a first video image is determined. The first video image has been streamed in a video stream to the streaming client device before the first time point and rendered with the streaming client device to the viewer at the first time point. Based on the viewer's view direction, a target view portion is identified in a second video image to be streamed in the video stream to the streaming client device to be rendered at a second time point subsequent to the first time point. The target view portion is encoded into the video stream with a higher target spatiotemporal resolution than that used to encode remaining non-target view portions in the second video image.

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