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公开(公告)号：WO2021247670A1
公开(公告)日：2021-12-09
申请号：PCT/US2021/035402
申请日：2021-06-02
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： ATKINS, Robin
IPC: G11B27/031 , G06T5/00 , G06T5/20 , H04N19/46 , G09G5/00 , G09G5/02 , G09G5/10 , G09G2360/16 , G09G5/005
Abstract: A system and method of editing video content includes receiving input video data; converting the input video data to a predetermined format; generating a plurality of initial metadata values for a frame of the converted video data, the plurality of initial metadata values including a first metadata value corresponding to a first fixed value not calculated from a content including the frame, a second metadata value corresponding to an average luminance value of the frame, and a third metadata value corresponding to a second fixed value not calculated from the content, wherein the first metadata value, the second metadata value, and the third metadata value include information used by a decoder to render a decoded image on a display.
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公开(公告)号：WO2019050972A3
公开(公告)日：2019-03-14
申请号：PCT/US2018/049585
申请日：2018-09-05
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： CHOUDHURY, Anustup Kumar Atanu , ATKINS, Robin , BEIER, Thaddeus , ZANDIFAR, Ali , GODIN, Ian
Abstract: A method for generating metadata for use by a video decoder for displaying video content encoded by a video encoder includes: (1) accessing a target tone mapping curve; (2) accessing a decoder tone curve corresponding to a tone curve used by the video decoder for tone mapping the video content; (3) generating a plurality of parameters of a trim-pass function used by the video decoder to apply after applying the decoder tone curve to the video content, wherein the parameters of the trim-pass function are generated to approximate the target tone curve with the combination of the trim-pass function and the decoder tone curve, and (4) generating the metadata for use by the video decoder, including said plurality of parameters of the trim-pass function.
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公开(公告)号：WO2017024042A2
公开(公告)日：2017-02-09
申请号：PCT/US2016/045362
申请日：2016-08-03
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： ATKINS, Robin , YIN, Peng , LU, Taoran , PUTLARZ, Jaclyn Anne
IPC: H04N19/46 , H04N19/117 , H04N19/186 , H04N19/85 , H04N19/98
CPC classification number: H04N19/85 , G09G2340/06 , H04N19/46 , H04N19/98
Abstract: In a method to improve backwards compatibility when decoding high-dynamic range images coded in a wide color gamut (WCG) space which may not be compatible with legacy color spaces, hue and/or saturation values of images in an image database are computed for both a legacy color space (say, YCbCr-gamma) and a preferred WCG color space (say, IPT-PQ). Based on a cost function, a reshaped color space is computed so that the distance between the hue values in the legacy color space and rotated hue values in the preferred color space is minimized. HDR images are coded in the reshaped color space. Legacy devices can still decode standard dynamic range images assuming they are coded in the legacy color space, while updated devices can use color reshaping information to decode HDR images in the preferred color space at full dynamic range.
Abstract translation: 在解码可能与传统颜色空间不兼容的宽色域（WCG）空间中编码的高动态范围图像时提高向后兼容性的方法中，计算图像数据库中的图像的色调和/或饱和度值 传统颜色空间（例如，YCbCr-gamma）和优选的WCG颜色空间（例如，IPT-PQ）。 基于成本函数，计算重构的颜色空间，使得传统颜色空间中的色调值与优选颜色空间中的旋转色调值之间的距离最小化。 HDR图像在重构的颜色空间中进行编码。 传统设备仍然可以解码标准动态范围图像，假设它们是在传统颜色空间中进行编码，而更新的设备可以使用颜色整形信息来在全动态范围内对首选颜色空间中的HDR图像进行解码。
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公开(公告)号：WO2016118395A1
公开(公告)日：2016-07-28
申请号：PCT/US2016/013352
申请日：2016-01-14
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： ATKINS, Robin
CPC classification number: H04N1/6058 , G09G5/02 , G09G5/10 , G09G2320/0271 , G09G2320/0673 , G09G2340/06 , G09G2370/04 , H04N1/6005 , H04N9/646 , H04N9/68
Abstract: A display management processor receives an input image with enhanced dynamic range to be displayed on a target display which has a different dynamic range than a reference display. The input image is first transformed into a perceptually-quantized (PQ) color space, preferably the IPT-PQ color space. A color volume mapping function, which includes an adaptive tone-mapping function and an adaptive gamut mapping function, generates a mapped image. A detail-preservation step is applied to the intensity component of the mapped image to generate a final mapped image with a filtered tone-mapped intensity image. The final mapped image is then translated back to the display's preferred color space. Examples of the adaptive tone mapping and gamut mapping functions are provided.
Abstract translation: 显示管理处理器接收具有增强的动态范围的输入图像，以显示在具有与参考显示不同的动态范围的目标显示器上。 输入图像首先被变换成感知量化（PQ）色彩空间，优选地是IPT-PQ色彩空间。 包括自适应色调映射功能和自适应色域映射功能的色彩体积映射功能生成映射图像。 将细节保存步骤应用于映射图像的强度分量，以生成具有经滤波的色调映射强度图像的最终映射图像。 然后将最终映射的图像转换回显示器的首选颜色空间。 提供了自适应色调映射和色域映射功能的示例。
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公开(公告)号：WO2015017314A1
公开(公告)日：2015-02-05
申请号：PCT/US2014/048387
申请日：2014-07-28
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： ATKINS, Robin , YEUNG, Raymond , QU, Sheng
CPC classification number: G11B27/3027 , G09G5/10 , G09G2360/16 , G09G2370/04 , G11B27/28 , G11B27/34 , H04N5/147 , H04N5/268 , H04N5/91 , H04N9/8205
Abstract: Methods and systems for generating and applying scene-stable metadata for a video data stream are disclosed herein. A video data stream is divided or partitioned into scenes and a first set of metadata may be generated for a given scene of video data. The first set of metadata may be any known metadata as a desired function of video content (e.g., luminance). The first set of metadata may be generated on a frame-by-frame basis. In one example, scene-stable metadata may be generated that may be different from the first set of metadata for the scene. The scene-stable metadata may be generated by monitoring a desired feature with the scene and may be used to keep the desired feature within an acceptable range of values. This may help to avoid noticeable and possibly objectionably visual artifacts upon rendering the video data.
Abstract translation: 本文公开了用于为视频数据流生成和应用场景稳定元数据的方法和系统。 视频数据流被分割或分割为场景，并且可以为给定的视频数据场景生成第一组元数据。 第一组元数据可以是作为视频内容（例如，亮度）的期望功能的任何已知元数据。 可以逐帧地生成第一组元数据。 在一个示例中，可以生成与场景的第一组元数据不同的场景稳定元数据。 场景稳定元数据可以通过用场景监视期望的特征来产生，并且可以用于将期望的特征保持在可接受的值范围内。 这可能有助于在渲染视频数据时避免显着和可能令人反感的视觉伪影。
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Patent Agency Ranking
公开(公告)号：WO2013188298A2
公开(公告)日：2013-12-19
申请号：PCT/US2013/044988
申请日：2013-06-10
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： ATKINS, Robin , WARD, Rabab K.
CPC classification number: G09G3/3426 , G06F3/1423 , G09G3/36 , G09G3/3611 , G09G2320/0238 , G09G2320/0266 , G09G2320/0271 , G09G2320/0646 , G09G2320/066 , G09G2320/0666 , G09G2360/16 , H04N21/440227
Abstract: In one embodiment, a dual modulator display systems and methods for rendering target image data upon the dual modulator display system are disclosed where the display system receives target image data, possible HDR image data and first calculates display control signals and then calculates backlight control signals from the display control signals. This order of calculating display signals and then backlight control signals later as a function of the display systems may tend to reduce clipping artifacts. In other embodiments, it is possible to split the input target HDR image data into a base layer and a detail layer, wherein the base layer is the low spatial resolution image data that may be utilized as for backlight illumination data. The detail layer is higher spatial resolution image data that may be utilized for display control data.
Abstract translation: 在一个实施例中，公开了一种用于在双调制器显示系统上渲染目标图像数据的双调制器显示系统和方法，其中显示系统接收目标图像数据，可能的HDR图像数据，并且首先计算显示控制信号，然后计算来自 显示控制信号。 作为显示系统的函数的计算显示信号和随后的背光控制信号的这个顺序可能倾向于减少削波伪像。 在其他实施例中，可以将输入目标HDR图像数据分割成基本层和细节层，其中基本层是可用于背光照明数据的低空间分辨率图像数据。 细节层是可用于显示控制数据的更高的空间分辨率图像数据。
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公开(公告)号：WO2012122306A2
公开(公告)日：2012-09-13
申请号：PCT/US2012/028128
申请日：2012-03-07
Applicant: DOLBY LABORATORIES LICENSING CORPORATION , ATKINS, Robin
Inventor： ATKINS, Robin
CPC classification number: G02B6/0035 , G02B6/0036 , G02B6/0061 , H05B37/0218
Abstract: An illuminator for a reflective display incorporates a light guide having substantially transparent front and rear planar surfaces which overlap the display's viewing surface when the surfaces are substantially parallel and adjacent to the viewing surface. A light source emits light into the light guide. A plurality of light redirecting structures is distributed on the light guide's rear surface. The structures are shaped to redirect through the light guide toward the viewing surface light rays which encounter the structures. Most light rays emitted into the light guide by the light source which do not encounter any of the structures are confined within the light guide by total internal reflection. Most light rays emitted into the light guide by the light source which encounter any of the structures are redirected through the light guide toward the viewing surface, substantially uniformly illuminating the display in a low ambient light environment.
Abstract translation: 用于反射显示器的照明器包括具有基本上透明的前和后平面表面的光导，当表面基本上平行并与观察表面相邻时，其与显示器的观察表面重叠。 光源将光线发射到光导中。 多个光重定向结构分布在光导的后表面上。 这些结构被成形为通过光导引导朝向遇到结构的观察面光线。 通过不受任何结构的光源发射到光导中的大多数光线通过全内反射被限制在光导内。 通过遇到任何结构的光源发射到光导中的大多数光线通过光导被重定向到观察表面，在低环境光环境中基本均匀地照亮显示器。
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8.发明申请
公开(公告)号：WO2022256497A1
公开(公告)日：2022-12-08
申请号：PCT/US2022/031915
申请日：2022-06-02
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： ATKINS, Robin
IPC: G06T15/08 , H04N13/161 , H04N13/395 , G06T15/20
Abstract: A method for representing a three-dimensional scene stored as a three-dimensional data set includes determining a set of P depth-plane depths along a viewing direction. The method includes generating, from a three-dimensional data set, a proxy three-dimensional data set including P proxy images by, for each depth-plane depth: generating a proxy image of the P proxy images from at least one cross-sectional image of a plurality of transverse cross-sectional images that (i) constitute the three-dimensional data set and (ii) each represent a respective transverse cross-section of the three-dimensional scene at a respective scene-depth.
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公开(公告)号：WO2022235969A1
公开(公告)日：2022-11-10
申请号：PCT/US2022/027918
申请日：2022-05-05
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： ATKINS, Robin
IPC: H04N13/261
Abstract: A volumetric image of a scene can be created, in one embodiment, by recording, through a camera in a device, a series of images of the scene as the camera is moved along a path relative to the scene; during the recording, the device stores motion path metadata about the path, and the series of images is associated with the motion path metadata and a metadata label is associated with the series of images, the metadata label indicating that the recorded series of images represent a volumetric image of the scene. The series of images, the motion path metadata and the metadata label can be assembled into a package for distribution to devices that can view the volumetric image, which may be referred to as a limited volumetric image. The devices that receive the volumetric image can display the individual images in the series of images or as a video.
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公开(公告)号：WO2022120104A2
公开(公告)日：2022-06-09
申请号：PCT/US2021/061683
申请日：2021-12-02
Applicant: DOLBY LABORATORIES LICENSING CORPORATION
Inventor： ATKINS, Robin
IPC: G06T15/20 , H04N13/282 , G06F3/011 , G06T15/205 , H04N13/117 , H04N13/15 , H04N13/178 , H04N13/373 , H04N13/376
Abstract: In one embodiment, methods, media, and systems process and display light field images using a view function that is based on pixel locations in the image and on the viewer's distance (observer's Z position) from the display. The view function can be an angular view function that specifies different angular views for different pixels in the light field image based on the inputs that can include: the x or y pixel location in the image, the viewer's distance from the display, and the viewer's angle relative to the display. In one embodiment, light field metadata, such as angular range metadata and/or angular offset metadata can be used to process and display the image. In one embodiment, color volume mapping metadata can be used to adjust color volume mapping based on the determined angular views; and the color volume mapping metadata can also be adjusted based on angular offset metadata.
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