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公开(公告)号：US09819938B2
公开(公告)日：2017-11-14
申请号：US15482689
申请日：2017-04-07
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Wenhui Jia , Ajit Ninan , Arkady Ten , Gregory John Ward
IPC: H04N19/124 , H04N19/186 , H04N19/44 , H04N9/77 , H04N5/235 , H04N19/136 , H04N19/182
CPC classification number: 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
Abstract: 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.
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公开(公告)号：US09781417B2
公开(公告)日：2017-10-03
申请号：US14508026
申请日：2014-10-07
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Ajit Ninan , Samir N. Hulyalkar
IPC: H04N19/85 , H04N21/2343 , H04N21/414 , H04N19/64 , H04N19/33 , G06T5/40 , H04N19/44
CPC classification number: H04N19/85 , G06T5/40 , G06T2207/20208 , H04N19/33 , H04N19/44 , H04N19/647 , H04N21/234327 , H04N21/41415
Abstract: HDR images are coded and distributed. An initial HDR image is received. Processing the received HDR image creates a JPEG-2000 DCI-compliant coded baseline image and an HDR-enhancement image. The coded baseline image has one or more color components, each of which provide enhancement information that allows reconstruction of an instance of the initial HDR image using the baseline image and the HDR-enhancement images. A data packet is computed, which has a first and a second data set. The first data set relates to the baseline image color components, each of which has an application marker that relates to the HDR-enhancement images. The second data set relates to the HDR-enhancement image. The data packets are sent in a DCI-compliant bit stream.
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公开(公告)号：US09710215B2
公开(公告)日：2017-07-18
申请号：US14668491
申请日：2015-03-25
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Ajit Ninan
CPC classification number: G06F3/1423 , G06F3/1438 , G09G5/026 , G09G2320/0285 , G09G2320/0693 , G09G2340/06 , G09G2370/04
Abstract: In an embodiment, a first display monitor communicates with a second display monitor to determine a common set of display capabilities that are supported by both the first display monitor and the second display monitor. One or more first color grading instructions for one or more first images are received from a first user. In response to receiving the one or more first color grading instructions, the one or more first images are color graded with the one or more first color grading instructions to generate one or more first color graded images. The one or more first color graded images are rendered on the first display monitor. In addition, the one or more first color graded images are caused to be rendered on the second display monitor.
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公开(公告)号：US09271011B2
公开(公告)日：2016-02-23
申请号：US14677906
申请日：2015-04-02
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Wenhui Jia , Ajit Ninan , Ten Arkady , Gregory John Ward
IPC: H04N19/44 , H04N19/124 , H04N19/186 , H04N5/235 , G06T9/00 , H04N9/67 , H04N9/77 , H04N19/169 , H04N19/50 , H04N19/30 , H04N19/136 , H04N19/70
CPC classification number: 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
Abstract: 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.
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公开(公告)号：US20150256752A1
公开(公告)日：2015-09-10
申请号：US14710856
申请日：2015-05-13
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Ajit Ninan , Gregory John Ward , Qifan Huang
CPC classification number: H04N5/23245 , G06K9/4652 , H04N5/222 , H04N5/2353 , H04N5/2355 , H04N5/265 , H04N5/3456 , H04N9/045
Abstract: Techniques are described to combine image data from multiple images with different exposures into a relatively high dynamic range image. A first image of a scene may be generated with a first operational mode of an image processing system. A second image of the scene may be generated with a second different operational mode of the image processing system. The first image may be of a first spatial resolution, while the second image may be of a second spatial resolution. For example, the first spatial resolution may be higher than the second spatial resolution. The first image and the second image may be combined into an output image of the scene. The output image may be of a higher dynamic range than either of the first image and the second image and may be of a spatial resolution higher than the second spatial resolution.
Abstract translation: 描述技术来将来自多个图像的图像数据与不同曝光组合成相对高的动态范围图像。 可以利用图像处理系统的第一操作模式来生成场景的第一图像。 可以利用图像处理系统的第二不同操作模式来生成场景的第二图像。 第一图像可以是第一空间分辨率，而第二图像可以是第二空间分辨率。 例如，第一空间分辨率可以高于第二空间分辨率。 第一图像和第二图像可以被组合成场景的输出图像。 输出图像可以具有比第一图像和第二图像中的任一个更高的动态范围，并且可以具有高于第二空间分辨率的空间分辨率。
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Patent Agency Ranking
公开(公告)号：US09010949B2
公开(公告)日：2015-04-21
申请号：US14149447
申请日：2014-01-07
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Ajit Ninan
CPC classification number: F21K9/64 , B82Y20/00 , F21V9/08 , G02B26/08 , G02B27/2207 , G02B27/2264 , G09G3/001 , G09G3/003 , G09G3/02 , G09G3/025 , G09G3/22 , G09G3/34 , G09G5/14 , G09G2310/0235 , H04N9/3129
Abstract: Modulated light sources are described. A modulated light source may have first light sources that are configured to emit first light, which has first color components that occupy a range that is beyond one or more prescribed ranges of light wavelengths. The modulated light source may also have a light converter that is configured to be illuminated by the first light. The light converter converts the first light into second light. The second light has one or more second color components that are within the one or more prescribed ranges of light wavelengths. Strengths of the one or more second color components in the second light are monitored and regulated to produce a particular point within a specific color gamut.
Abstract translation: 描述了调制光源。 调制光源可以具有被配置为发射第一光的第一光源，其具有占据超过一个或多个规定范围的光波长的范围的第一颜色分量。 调制光源还可以具有被配置为被第一光照射的光转换器。 光转换器将第一光转换成第二光。 第二个光具有在一个或多个规定的光波长范围内的一个或多个第二颜色分量。 监测和调节第二光中的一个或多个第二颜色分量的强度以产生特定色域内的特定点。
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公开(公告)号：US20250133224A1
公开(公告)日：2025-04-24
申请号：US18833245
申请日：2023-02-01
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Ajit Ninan , Gregory John Ward
Abstract: A sequence of base layer images for a base reference image display and a set of one or more sequences of beta scale maps corresponding to one or more non-base reference image displays are generated. A subset of one or more sequences of beta scale maps is determined in the set of one or more sequences of beta scale maps based at least in part on display capabilities of a target image display. The sequence of base layer images, along with the subset of one or more sequences of beta scale maps, is encoded into a video signal to cause a recipient device of the video signal to generate a sequence of display images from the sequence of base layer images and the subset of one or more sequences of beta scale maps for rendering on the image display.
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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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公开(公告)号：US11454847B2
公开(公告)日：2022-09-27
申请号：US16568201
申请日：2019-09-11
Applicant: Dolby Laboratories Licensing Corporation
Inventor： Ajit Ninan , Chun Chi Wan , Timo Kunkel , Michael Eugene Miller
IPC: G02F1/13357 , F21V9/08 , G02B5/20 , G02B5/22 , H01L27/32 , H01L51/56 , B82Y20/00 , H04N13/334 , G02F1/1335
Abstract: 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.
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公开(公告)号：US11409115B2
公开(公告)日：2022-08-09
申请号：US17347422
申请日：2021-06-14
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： Ajit Ninan , Neil Mammen
Abstract: A wearable device for augmented media content experiences can be formed with a mountable physical structure that has removably mountable positions and component devices that are removably mounted through the removably mountable positions. The component devices can be specifically selected based on a specific type of content consumption environment in which the wearable device is to operate. The mountable physical structure may be subject to a device washing process to which the component devices are not subject to, after the wearable device including the mountable physical structure and the component devices is used by a viewer in a content consumption session in the specific type of content consumption environment, so long as the component devices are subsequently removed from the mountable physical structure.
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