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    Frame-compatible full-resolution stereoscopic 3D video delivery with symmetric picture resolution and quality
    81.
    发明申请
    Frame-compatible full-resolution stereoscopic 3D video delivery with symmetric picture resolution and quality 审中-公开
    具有对称图像分辨率和质量的帧兼容全分辨率立体3D视频传输

    公开(公告)号：US20140286397A1

    公开(公告)日：2014-09-25

    申请号：US14348263

    申请日：2012-09-27

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Tao Chen ,  Hariharan Ganapathy, I ,  Samir N. Hulyalkar ,  Gopi Lakshminarayanan ,  Peng Yin ,  Taoran Lu ,  Walter J. Husak

    IPC: H04N19/119 ,  H04N13/00

    CPC classification number: H04N19/00072 ,  H04N13/106 ,  H04N13/161 ,  H04N13/194 ,  H04N19/119 ,  H04N19/597

    Abstract: A high resolution 3D image may be encoded into a first multiplexed image frame and a second multiplexed image frame in a base layer (BL) video signal and an enhancement layer (EL) video signal. The first multiplexed image frame may comprise horizontal high resolution image data for both eyes, while the second multiplexed image frame may comprise vertical high resolution image data for both eyes. Encoded symmetric-resolution image data for the 3D image may be distributed to a wide variety of devices for 3D image processing and rendering. A recipient device may reconstruct reduced resolution 3D image from one of the first multiplexed image frame or the second multiplexed image frame. A recipient device may also reconstruct high resolution 3D image by combining high resolution image data from both of the first multiplexed image frame and the second multiplexed image frame.

    Abstract translation: 高分辨率3D图像可以编码到基本层（BL）视频信号和增强层（EL）视频信号中的第一多路复用图像帧和第二多路复用图像帧中。 第一多路复用图像帧可以包括用于双眼的水平高分辨率图像数据，而第二多路复用图像帧可以包括用于双眼的垂直高分辨率图像数据。 用于3D图像的编码对称分辨率图像数据可以分布到用于3D图像处理和渲染的各种设备。 接收装置可以从第一多路复用图像帧或第二多路复用图像帧之一重建降低分辨率的3D图像。 接收装置还可以通过组合来自第一多路复用图像帧和第二多路复用图像帧的高分辨率图像数据来重建高分辨率3D图像。

    Complexity Scalable Multilayer Video Coding
    82.
    发明申请
    Complexity Scalable Multilayer Video Coding 有权
    复杂度可扩展多层视频编码

    公开(公告)号：US20130251027A1

    公开(公告)日：2013-09-26

    申请号：US13847022

    申请日：2013-03-19

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Taoran Lu ,  Peng Yin ,  Yuwen He

    IPC: H04N7/26

    CPC classification number: H04N19/187 ,  H04N19/103 ,  H04N19/117 ,  H04N19/12 ,  H04N19/132 ,  H04N19/156 ,  H04N19/172 ,  H04N19/30 ,  H04N19/50

    Abstract: A multi-layer video system has a first layer encoder that encodes a first layer of video information, at least one second layer encoder that encodes at least one second layer of video information, and an encoder side reference processing unit (RPU) that estimates one or more of an optimal filter or an optimal process that applies on a reference picture that is reconstructed from the first video information layer, and processes a current picture of the second video information layer, based on a correlation between the first layer reconstructed reference picture. The correlation relates to a complexity characteristic that scaleably corresponds to the first video information layer reconstructed reference picture and the second video information layer current picture. A scalable video bitstream is outputted, which may be decoded by a compatible decoder. A decoder side RPU and the encoder side RPU function as an RPU pair.

    Abstract translation: 多层视频系统具有对第一层视频信息进行编码的第一层编码器，至少一个编码至少一层第二层视频信息的第二层编码器，以及估计一个视频信号的编码器侧参考处理单元（RPU） 或更多的最佳滤波器或最佳处理，其适用于从第一视频信息层重建的参考图像，并且基于第一层重构参考图像之间的相关性处理第二视频信息层的当前图像。 相关性涉及可扩展地对应于第一视频信息层重构参考图像和第二视频信息层当前图像的复杂度特性。 输出可分级视频比特流，其可以由兼容解码器解码。 解码器侧RPU和编码器侧RPU作为RPU对。

    SIGNAL RESHAPING FOR HIGH DYNAMIC RANGE SIGNALS
    83.
    发明申请
    SIGNAL RESHAPING FOR HIGH DYNAMIC RANGE SIGNALS 有权

    公开(公告)号：US20240380928A1

    公开(公告)日：2024-11-14

    申请号：US18780325

    申请日：2024-07-22

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Robin Atkins ,  Peng Yin ,  Taoran Lu ,  Jaclyn Anne Pytlarz

    IPC: H04N19/87 ,  H04N1/60 ,  H04N19/46 ,  H04N19/85 ,  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.

    Integrated image reshaping and video coding
    87.
    发明授权
    Integrated image reshaping and video coding 有权

    公开(公告)号：US12015786B2

    公开(公告)日：2024-06-18

    申请号：US17940819

    申请日：2022-09-08

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Taoran Lu ,  Fangjun Pu ,  Peng Yin ,  Tao Chen ,  Walter J. Husak

    IPC: H04N19/159 ,  H04N19/124 ,  H04N19/182 ,  H04N19/44

    CPC classification number: H04N19/159 ,  H04N19/124 ,  H04N19/182 ,  H04N19/45

    Abstract: Given a sequence of images in a first codeword representation, methods, processes, and systems are presented for integrating reshaping into a next generation video codec for encoding and decoding the images, wherein reshaping allows part of the images to be coded in a second codeword representation which allows more efficient compression than using the first codeword representation. A variety of architectures are discussed, including: an out-of-loop reshaping architecture, an in-loop-for intra pictures only reshaping architecture, an in-loop architecture for prediction residuals, and a hybrid in-loop reshaping architecture. Syntax methods for signaling reshaping parameters, and image-encoding methods optimized with respect to reshaping are also presented.

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