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    Backwards-Compatible Delivery of Digital Cinema Content with Higher Dynamic Range and Related Preprocessing and Coding Methods
    41.
    发明申请
    Backwards-Compatible Delivery of Digital Cinema Content with Higher Dynamic Range and Related Preprocessing and Coding Methods 有权
    具有更高动态范围和相关的预处理和编码方法的向后兼容的数字影院内容的传送

    公开(公告)号：US20140327821A1

    公开(公告)日：2014-11-06

    申请号：US14261652

    申请日：2014-04-25

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Tao Chen ,  Samir N. Hulyalkar

    IPC: H04N19/98 ,  H04N19/44

    CPC classification number: H04N19/44 ,  H04N19/36

    Abstract: Methods and systems for image processing and delivery of higher dynamic range cinema content are disclosed. A digital cinema signal with a lower dynamic range is obtained from a digital cinema signal with a higher dynamic range, for example through mapping. The lower dynamic range digital cinema signal is encoded and decoded at the transmitting end. The decoded lower dynamic range digital cinema signal is normalized to produce a set of normalization parameters which enable the mapping process at the receiving end to produce a final image with higher dynamic range that is of a higher quality. Alternatively, the higher dynamic range digital cinema signal is also encoded and decoded at the transmitting end, to produce a set of normalization parameters which enable the mapping process at the receiving end to produce a final image with higher dynamic range that is of a higher quality.

    Abstract translation: 公开了用于图像处理和递送更高动态范围的电影内容的方法和系统。 具有较低动态范围的数字影院信号从具有较高动态范围的数字影院信号获得，例如通过映射。 较低的动态范围数字影院信号在发送端进行编码和解码。 经解码的较低动态范围数字电影信号被归一化以产生一组归一化参数，这使得接收端的映射处理能够产生具有更高质量的较高动态范围的最终图像。 或者，较高动态范围的数字影院信号也在发送端进行编码和解码，以产生一组归一化参数，使得接收端的映射处理能够产生具有更高质量的较高动态范围的最终图像 。

    Backwards-compatible delivery of digital cinema content with higher dynamic range and related preprocessing and coding methods
    42.
    发明授权
    Backwards-compatible delivery of digital cinema content with higher dynamic range and related preprocessing and coding methods 有权
    具有更高动态范围和相关预处理和编码方法的数字影院内容的向后兼容传送

    公开(公告)号：US08866975B1

    公开(公告)日：2014-10-21

    申请号：US14261652

    申请日：2014-04-25

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Tao Chen ,  Samir N. Hulyalkar

    IPC: H04N9/74 ,  G06F11/00 ,  H04N19/98 ,  H04N19/44

    CPC classification number: H04N19/44 ,  H04N19/36

    Abstract: Methods and systems for image processing and delivery of higher dynamic range cinema content are disclosed. A digital cinema signal with a lower dynamic range is obtained from a digital cinema signal with a higher dynamic range, for example through mapping. The lower dynamic range digital cinema signal is encoded and decoded at the transmitting end. The decoded lower dynamic range digital cinema signal is normalized to produce a set of normalization parameters which enable the mapping process at the receiving end to produce a final image with higher dynamic range that is of a higher quality. Alternatively, the higher dynamic range digital cinema signal is also encoded and decoded at the transmitting end, to produce a set of normalization parameters which enable the mapping process at the receiving end to produce a final image with higher dynamic range that is of a higher quality.

    Abstract translation: 公开了用于图像处理和递送更高动态范围的电影内容的方法和系统。 具有较低动态范围的数字影院信号从具有较高动态范围的数字影院信号获得，例如通过映射。 较低的动态范围数字影院信号在发送端进行编码和解码。 经解码的较低动态范围数字电影信号被归一化以产生一组归一化参数，这使得接收端的映射处理能够产生具有更高质量的较高动态范围的最终图像。 或者，较高动态范围的数字影院信号也在发送端进行编码和解码，以产生一组归一化参数，使得接收端的映射处理能够产生具有更高质量的较高动态范围的最终图像 。

    Integrated image reshaping and video coding
    45.
    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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