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    • 1. 发明申请
    • IMPROVED METHOD FOR SCREEN CONTENT CODING
    • 改进的屏幕内容编码方法
    • WO2015138936A1
    • 2015-09-17
    • PCT/US2015/020505
    • 2015-03-13
    • HUAWEI TECHNOLOGIES CO., LTD.FUTUREWEI TECHNOLOGIES, INC.
    • LAUDE, ThorstenOSTERMANN, Dr. JornMUNDERLOH, MarcoYU, Haoping
    • H04N7/12
    • H04N19/543H04N19/132H04N19/137H04N19/176H04N19/46H04N19/93
    • Coding of screen content includes identifying corresponding areas in one or more previously coded frames to code unchanged areas in current frames. An unchanged area in a current frame is coded by copying a corresponding area from a previously coded frame or several previously coded frames. Usage of a copy mode to be applied to the unchanged areas is signaled in an encoding bitstream. The copy mode can be signaled for each unchanged area or a single copy mode is signaled for a group of unchanged areas. The copy mode can be automatically applied to one or more unchanged areas contiguous to the group of unchanged areas without further signaling the copy mode. Copying the corresponding area from the previously coded frame includes copying palette entries from the previously coded frame. Palette entries copied from the previously coded frame are reordered according to frequency of appearance.
    • 屏幕内容的编码包括识别一个或多个先前编码的帧中的相应区域,以对当前帧中的不变区进行编码。 通过从先前编码的帧或多个先前编码的帧复制相应的区域来对当前帧中的未改变的区域进行编码。 将复制模式应用于不变区域的使用在编码比特流中被通知。 可以针对每个不变的区域发信号通知复制模式,或者为一组不变的区域发信号通知一个复制模式。 可以将复制模式自动应用于与该组未改变区域相邻的一个或多个不变区域,而不进一步发信号通知复制模式。 从先前编码的帧复制相应的区域包括从先前编码的帧中复制调色板条目。 从先前编码的帧复制的调色板条目根据外观频率重新排列。
    • 5. 发明申请
    • FRAMEWORK FOR SCREEN CONTENT SHARING SYSTEM WITH GENERALIZED SCREEN DESCRIPTIONS
    • 用于屏幕内容共享系统的框架,具有通用的屏幕描述
    • WO2015054604A1
    • 2015-04-16
    • PCT/US2014/060086
    • 2014-10-10
    • FUTUREWEI TECHNOLOGIES, INC.HUAWEI TECHNOLOGIES CO., LTD.WANG, XinGUAN, XinjieWANG, GuoqiangYU, Haoping
    • WANG, XinGUAN, XinjieWANG, GuoqiangYU, Haoping
    • G06F3/048
    • H04L12/1822G06F9/44G06F9/452
    • A framework for a screen content sharing system with generalized screen descriptions is described. In one approach, a screen content update message is sent from a client device to a control plane where the client device wishes to share its screen content with a remote device. The remote device sends a message indicating an interest in receiving said update. The control plane subsequently retrieves a detailed description from the client device. Based on the computational context of the remote device, the detailed description may be trimmed to a more compatible format. In some embodiments, the detailed description is sent to the remote device and includes a screen description and a content description. The content of the shared screen is described and the content is subsequently retrieved from a service router. A shared screen content is assembled based on the screen description and the content retrieved from the service router.
    • 描述了具有广义屏幕描述的屏幕内容共享系统的框架。 在一种方法中,屏幕内容更新消息从客户端设备发送到控制平面,在该控制平面上,客户端设备希望与远程设备共享其屏幕内容。 远程设备发送指示接收所述更新的兴趣的消息。 控制平面随后从客户端设备检索详细描述。 基于远程设备的计算上下文,可以将详细描述修剪成更兼容的格式。 在一些实施例中,详细描述被发送到远程设备,并且包括屏幕描述和内容描述。 描述共享屏幕的内容,随后从服务路由器检索内容。 基于屏幕描述和从服务路由器检索的内容来组合共享屏幕内容。
    • 10. 发明申请
    • BINARIZATION OF PREDICTION RESIDUALS FOR LOSSLESS VIDEO CODING
    • 用于无噪声视频编码的预测残差的二值化
    • WO2013067436A1
    • 2013-05-10
    • PCT/US2012/063428
    • 2012-11-02
    • HUAWEI TECHNOLOGIES CO., LTD.GAO, WenJIANG, MinqiangYU, Haoping
    • GAO, WenJIANG, MinqiangYU, Haoping
    • H04N7/26
    • H04N19/593H04N19/11H04N19/137H04N19/147H04N19/174H04N19/176H04N19/182H04N19/91
    • A video codec comprising a processor configured to compute a difference between an original pixel and a prediction pixel to generate a prediction residual, and binarize an absolute value of the prediction residual. A method for video coding comprising computing a difference between an original pixel and a prediction pixel to generate a prediction residual, and binarizing an absolute value of the prediction residual. A video encoder comprising a processor configured to set a number of syntax elements to indicate lossless encoding of some or all coding units (CU) in a video frame, a transmitter configured to transmit a bit stream comprising the syntax elements. A method for video encoding comprising setting a number of syntax elements to indicate lossless encoding of some or all coding units (CU) in a video frame, and transmitting a bit stream comprising the syntax elements.
    • 一种视频编解码器,包括:处理器,被配置为计算原始像素和预测像素之间的差以产生预测残差,并且将所述预测残差的绝对值二值化。 一种用于视频编码的方法,包括计算原始像素和预测像素之间的差以产生预测残差,并将预测残差的绝对值二值化。 一种视频编码器,包括被配置为设置多个语法元素以指示视频帧中的一些或所有编码单元(CU)的无损编码的处理器,被配置为发送包括语法元素的比特流的发射机。 一种用于视频编码的方法,包括设置多个语法元素以指示视频帧中的一些或所有编码单元(CU)的无损编码,以及发送包括语法元素的比特流。