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1. 发明申请

US20220210512A1 CONTENT BASED STREAM SPLITTING OF VIDEO DATA 有权
公开(公告)号：US20220210512A1
公开(公告)日：2022-06-30
申请号：US17695823
申请日：2022-03-15
申请人： Dolby Laboratories Licensing Corporation
发明人： Chaitanya Atluru , Ajit Ninan
IPC分类号： H04N21/4728 , H04N13/117 , H04N21/218 , H04N21/431 , H04N21/4402 , H04N21/84
摘要： 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.

2. 发明授权

US11375178B2 Multi-resolution multi-view video rendering 有权
公开(公告)号：US11375178B2
公开(公告)日：2022-06-28
申请号：US16809397
申请日：2020-03-04
申请人： Dolby Laboratories Licensing Corporation
发明人： Haricharan Lakshman , Wenhui Jia , Jasper Chao , Shwetha Ram , Domagoj Baricevic , Ajit Ninan
IPC分类号： H04N13/351
摘要： 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.

3. 发明授权

US11363250B2 Augmented 3D entertainment systems 有权
公开(公告)号：US11363250B2
公开(公告)日：2022-06-14
申请号：US15945237
申请日：2018-04-04
申请人： Dolby Laboratories Licensing Corporation
发明人： Ajit Ninan , Neil Mammen
IPC分类号： H04N13/344 , H04N13/341 , H04N13/337 , H04N5/253 , H04N13/128 , H04N13/346 , H04N13/00
摘要： 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.

4. 发明授权

US11074875B2 Techniques for dual modulation display with light conversion 有权
公开(公告)号：US11074875B2
公开(公告)日：2021-07-27
申请号：US16863451
申请日：2020-04-30
申请人： Dolby Laboratories Licensing Corporation
发明人： Ajit Ninan , Chun Chi Wan
IPC分类号： G09G3/34 , G09G3/36 , H05B45/20 , H05B45/24 , G09G3/32 , G02F1/1335
摘要： 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.

5. 发明申请

US20200372605A1 VIRTUAL REALITY CINEMA-IMMERSIVE MOVIE WATCHING FOR HEADMOUNTED DISPLAYS 审中-公开
公开(公告)号：US20200372605A1
公开(公告)日：2020-11-26
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.

6. 发明授权

US10726574B2 Passive multi-wearable-devices tracking 有权
公开(公告)号：US10726574B2
公开(公告)日：2020-07-28
申请号：US15949536
申请日：2018-04-10
申请人： Dolby Laboratories Licensing Corporation
发明人： Ajit Ninan , Neil Mammen
IPC分类号： G06T7/70 , G02B27/01 , G02B27/00 , G06T7/285 , G06F3/01 , G06T7/521 , G06F3/03 , G06T7/593 , G02B30/24 , G02B30/25
摘要： 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.

7. 发明申请

US20200003394A1 QUANTUM DOT/REMOTE PHOSPHOR DISPLAY SYSTEM IMPROVEMENTS 审中-公开
公开(公告)号：US20200003394A1
公开(公告)日：2020-01-02
申请号：US16568201
申请日：2019-09-11
申请人： Dolby Laboratories Licensing Corporation
发明人： Ajit Ninan , Chun Chi Wan , Timo Kunkel , Michael Eugene Miller
IPC分类号： F21V9/40 , F21V9/08 , G02F1/1335 , G02B5/20 , G02B5/22 , H01L27/32 , H01L51/56
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.

8. 发明授权

US09654781B2 Encoding, decoding, and representing high dynamic range images 有权
公开(公告)号：US09654781B2
公开(公告)日：2017-05-16
申请号：US14997950
申请日：2016-01-18
申请人： Dolby Laboratories Licensing Corporation
发明人： Wenhui Jia , Ajit Ninan , Arkady Ten , Gregory John Ward
IPC分类号： H04N19/136 , H04N9/77 , H04N5/235 , H04N19/169 , G06T9/00 , H04N9/67 , H04N19/50 , H04N19/30 , H04N19/186 , H04N19/124 , H04N19/44 , H04N19/70
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.

9. 发明授权

US09374589B2 HDR images with multiple color gamuts 有权
标题翻译：具有多个色域的HDR图像
公开(公告)号：US09374589B2
公开(公告)日：2016-06-21
申请号：US14709978
申请日：2015-05-12
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Arkady Ten , Ajit Ninan , Gaven Wang
IPC分类号： G06K9/36 , H04N19/136 , G06T5/00 , G06T5/50 , H04N19/117 , H04N19/124 , H04N19/182 , H04N19/186 , H04N19/44 , H04N19/46 , G06K9/46 , G06T7/40
CPC分类号： H04N19/136 , G06K9/4652 , G06T5/009 , G06T5/50 , G06T7/90 , G06T2207/20008 , G06T2207/20024 , G06T2207/20208 , H04N19/117 , H04N19/119 , H04N19/124 , H04N19/182 , H04N19/184 , H04N19/186 , H04N19/33 , H04N19/44 , H04N19/46
摘要： Image encoding and decoding are described. An input HDR image that includes a base image and a ratio image may be stored using two or more color description profiles. One profile defines the encoding color space of the base image and the second profile defines the encoding color space of the HDR metadata which may be different than the color space of the base image.
摘要翻译：描述图像编码和解码。可以使用两个或更多个颜色描述简档来存储包括基本图像和比例图像的输入HDR图像。一个配置文件定义了基本图像的编码颜色空间，第二个配置文件定义了可能与基本图像的颜色空间不同的HDR元数据的编码颜色空间。

10. 发明申请

US20150302804A1 AMBIENT BLACK LEVEL 有权
标题翻译：环境黑色
公开(公告)号：US20150302804A1
公开(公告)日：2015-10-22
申请号：US14788396
申请日：2015-06-30
申请人： Dolby Laboratories Licensing Corporation
发明人： Ajit Ninan , Wenhui Jia
IPC分类号： G09G3/34
CPC分类号： G09G3/3406 , G09G3/3426 , G09G2320/0238 , G09G2320/0626 , G09G2320/0646 , G09G2320/066 , G09G2360/144
摘要： Techniques for operating a display system in a wide range of ambient light conditions are provided. An intensity of ambient light on a display panel may be detected. The display panel may be illuminated by light sources in addition to the ambient light. An individual light source may be individually settable to an individual light output level. If it is determined that the luminance level of the ambient light is above a minimum ambient luminance threshold, an ambient black level may be calculated using the intensity of ambient light. Light output levels of one or more of the light sources may be elevated to first light output levels. Here, the one or more light sources may be designated to illuminate one or more dark portions of an image. The first light output levels may create a new black level equaling the determined ambient black level.
摘要翻译：提供了用于在宽范围的环境光条件下操作显示系统的技术。可以检测显示面板上的环境光的强度。除了环境光之外，显示面板也可以被光源照亮。单独的光源可以单独地设置为单独的光输出电平。如果确定环境光的亮度水平高于最小环境亮度阈值，则可以使用环境光的强度来计算环境黑色电平。一个或多个光源的光输出电平可以升高到第一光输出电平。这里，可以指定一个或多个光源来照亮图像的一个或多个暗部分。第一光输出电平可产生等于所确定的环境黑电平的新黑电平。

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