TCP congestion control for heterogeneous networks
    11.
    发明授权
    TCP congestion control for heterogeneous networks 有权
    异构网络的TCP拥塞控制

    公开(公告)号:US08547839B2

    公开(公告)日:2013-10-01

    申请号:US13085516

    申请日:2011-04-13

    IPC分类号: H04J3/14

    CPC分类号: H04L47/27 H04L47/225

    摘要: A congestion control mechanism for TCP communication sessions is described. The congestion control mechanism adjusts the size of the congestion window based on a number, N, of parallel virtual connections. The number N of parallel virtual connections used to determine the congestion window is dynamically adjusted based on an estimation of the network condition.

    摘要翻译: 描述了TCP通信会话的拥塞控制机制。 拥塞控制机制基于N个并行虚拟连接来调整拥塞窗口的大小。 用于确定拥塞窗口的并行虚拟连接数N基于网络状况的估计而动态调整。

    METHOD FOR TRANSMITTING REAL-TIME VIDEO DATA OVER NETWORK
    12.
    发明申请
    METHOD FOR TRANSMITTING REAL-TIME VIDEO DATA OVER NETWORK 审中-公开
    传输网络实时数据的方法

    公开(公告)号:US20130080501A1

    公开(公告)日:2013-03-28

    申请号:US13240265

    申请日:2011-09-22

    IPC分类号: G06F15/16

    摘要: A method for transmitting real-time video data over a network involves a video source, a central server and a Web browser and comprises the following steps that: an applet is embedded into the Web browser to establish a peer-to-peer connection between the central server and the video source using UDP protocol. After receiving the video data transmitted using UDP protocol, the applet converts the received video data into TCP-based data to enable the various TCP-using video players built in the browser to play videos; and the applet converts client information from a TCP protocol format to a UDP protocol format and then sends the converted information directly to the video source.

    摘要翻译: 一种用于通过网络传输实时视频数据的方法涉及视频源,中央服务器和Web浏览器,并且包括以下步骤:将小程序嵌入到Web浏览器中以建立在 中央服务器和使用UDP协议的视频源。 在接收到使用UDP协议发送的视频数据之后,该小应用程序将接收到的视频数据转换成基于TCP的数据,使得浏览器内置的各种使用TCP的视频播放器播放视频; 小程序将客户端信息从TCP协议格式转换为UDP协议格式,然后将转换的信息直接发送到视频源。

    METHOD AND DEVICE FOR VIDEO PREDICTIVE ENCODING
    13.
    发明申请
    METHOD AND DEVICE FOR VIDEO PREDICTIVE ENCODING 有权
    用于视频预测编码的方法和装置

    公开(公告)号:US20130051468A1

    公开(公告)日:2013-02-28

    申请号:US13608064

    申请日:2012-09-10

    IPC分类号: H04N7/32

    摘要: An embodiment of the invention provides a method for video predictive encoding. Firstly, extract a pixel block from current frame, divide the pixel block into a principal set of pixels and a complementary set of pixels; encode the principal set of pixels, output code stream of the principal set of pixels, obtain a reconstruction value of the principal set of pixels; interpolate to reconstructed pixel values, which include the reconstruction value of the principal set of pixels, take a result as predictive value of the complementary set of pixels, execute an intra-frame predictive encoding for the complementary set of pixels, output code stream of the complementary set of pixels, obtain a reconstruction value of the complementary set of pixels; and finally combine the reconstruction value of the principal set of pixels and the reconstruction value of the complementary set of pixels, and obtain a reconstruction value of the pixel block. Another embodiment of the invention also provides a device for video predictive encoding. By adopting implementation modes of the invention, compression efficiency of video encoding may be improved, implementation complexity may be lower, memory occupation may be saved, and cache hit rate may be improved. The implementation modes of the invention are suitable for highly parallel calculation, and may execute rapid encoding compression for a high-definition video source.

    摘要翻译: 本发明的实施例提供了一种用于视频预测编码的方法。 首先,从当前帧中提取像素块,将像素块划分为主要像素集合和补充像素集合; 编码主要像素集合,输出主要像素集的码流,获得主要像素集的重建值; 内插到重构像素值,其包括主要像素集合的重建值,将结果作为互补像素集合的预测值,对互补像素集执行帧内预测编码,输出码流 互补的像素集合,获得补偿像素集的重建值; 最后组合主要像素集的重建值和补码像素组的重建值,并获得像素块的重建值。 本发明的另一个实施例还提供了一种用于视频预测编码的装置。 通过采用本发明的实施方式,可以提高视频编码的压缩效率,实现复杂度可能更低,可以节省存储器占用,并且可以提高高速缓存命中率。 本发明的实现方式适用于高度并行计算,并可执行高清视频源的快速编码压缩。

    System and method for performing optimized quantization via quantization re-scaling
    14.
    发明授权
    System and method for performing optimized quantization via quantization re-scaling 有权
    通过量化重新缩放来执行优化量化的系统和方法

    公开(公告)号:US08031768B2

    公开(公告)日:2011-10-04

    申请号:US11013839

    申请日:2004-12-15

    申请人: Jiangtao Wen

    发明人: Jiangtao Wen

    IPC分类号: H04N7/12

    摘要: A method, system, and program product for quantizing discrete cosine transform coefficients, e.g., for MPEG compression, with minimal bit rate overhead and without using a quantization matrix. This is done by scaling a uniform quantization parameter for the entire discrete cosine transform block, defining a variety of thresholds for the quantization of discrete cosine transform coefficients below which the corresponding coefficient will be quantized to zero, and setting different normative reconstructed values for coefficients that have not been quantized to zero as the decoder will still use the original, unmodified reconstructed values as long as the corresponding coefficient is not zero.

    摘要翻译: 一种用于以最小比特率开销量化离散余弦变换系数(例如,用于MPEG压缩)并且不使用量化矩阵的方法,系统和程序产品。 这通过缩放整个离散余弦变换块的均匀量化参数来完成,为离散余弦变换系数的量化定义各种阈值,在该余量变换系数之下对应的系数将被量化为零,以及为系数设定不同的规范重构值 没有被量化为零,因为解码器将仍然使用原始的未修改的重构值,只要对应的系数不为零。

    System and method of reduced-temporal-resolution update for video coding and quality control
    16.
    发明申请
    System and method of reduced-temporal-resolution update for video coding and quality control 有权
    用于视频编码和质量控制的缩短时间分辨率更新的系统和方法

    公开(公告)号:US20060227868A1

    公开(公告)日:2006-10-12

    申请号:US11104255

    申请日:2005-04-11

    摘要: A novel system and method of Reduced-Temporal-Resolution Update (RTRU) and quantizing video transform coefficients is provided for use using hybrid coding standards when receiving a frame from within a group of video frames, where the amplitude of the quantization parameter is defined for the quantization of the frame according to a reduced temporal resolution update process; where the amplitude of the quantization parameter for macroblocks in the frame is defined according to a reduced temporal resolution update process; and where a bitstream is composed for transmission and subsequent decoding by a standard compliant decoder.

    摘要翻译: 提供了一种缩小时分辨率更新(RTRU)和量化视频变换系数的新型系统和方法,用于当从视频帧组内接收帧时使用混合编码标准使用,其中量化参数的幅度被定义为 根据减小的时间分辨率更新处理对帧的量化; 其中根据减小的时间分辨率更新过程来定义帧中的宏块的量化参数的幅度; 并且其中组合比特流用于由标准兼容解码器进行传输和后续解码。

    System and method for performing optimized quantization via quantization re-scaling
    17.
    发明申请
    System and method for performing optimized quantization via quantization re-scaling 有权
    通过量化重新缩放来执行优化量化的系统和方法

    公开(公告)号:US20060133478A1

    公开(公告)日:2006-06-22

    申请号:US11013839

    申请日:2004-12-15

    申请人: Jiangtao Wen

    发明人: Jiangtao Wen

    摘要: A method, system, and program product for quantizing discrete cosine transform coefficients, e.g., for MPEG compression, with minimal bit rate overhead and without using a quantization matrix. This is done by scaling a uniform quantization parameter for the entire discrete cosine transform block, defining a variety of thresholds for the quantization of discrete cosine transform coefficients below which the corresponding coefficient will be quantized to zero, and setting different normative reconstructed values for coefficients that have not been quantized to zero as the decoder will still use the original, unmodified reconstructed values as long as the corresponding coefficient is not zero.

    摘要翻译: 一种用于以最小比特率开销量化离散余弦变换系数(例如,用于MPEG压缩)并且不使用量化矩阵的方法,系统和程序产品。 这通过缩放整个离散余弦变换块的均匀量化参数来完成,为离散余弦变换系数的量化定义各种阈值,在该余量变换系数之下对应的系数将被量化为零,以及为系数设定不同的规范重构值 没有被量化为零,因为解码器将仍然使用原始的未修改的重构值,只要对应的系数不为零。

    System and method of reduced-temporal-resolution update for video coding and quality control
    19.
    发明授权
    System and method of reduced-temporal-resolution update for video coding and quality control 有权
    用于视频编码和质量控制的缩短时间分辨率更新的系统和方法

    公开(公告)号:US08325797B2

    公开(公告)日:2012-12-04

    申请号:US11104255

    申请日:2005-04-11

    IPC分类号: H04N7/12

    摘要: A novel system and method of Reduced-Temporal-Resolution Update (RTRU) and quantizing video transform coefficients is provided for use using hybrid coding standards when receiving a frame from within a group of video frames, where the amplitude of the quantization parameter is defined for the quantization of the frame according to a reduced temporal resolution update process; where the amplitude of the quantization parameter for macroblocks in the frame is defined according to a reduced temporal resolution update process; and where a bitstream is composed for transmission and subsequent decoding by a standard compliant decoder.

    摘要翻译: 提供了一种缩小时分辨率更新(RTRU)和量化视频变换系数的新型系统和方法,用于当从视频帧组内接收帧时使用混合编码标准使用,其中量化参数的幅度被定义为 根据减小的时间分辨率更新处理对帧的量化; 其中根据减小的时间分辨率更新过程来定义帧中的宏块的量化参数的幅度; 并且其中组合比特流用于由标准兼容解码器进行传输和后续解码。

    TCP CONGESTION CONTROL FOR HETEROGENEOUS NETWORKS
    20.
    发明申请
    TCP CONGESTION CONTROL FOR HETEROGENEOUS NETWORKS 有权
    TCP异步网络TCP协商控制

    公开(公告)号:US20110249553A1

    公开(公告)日:2011-10-13

    申请号:US13085516

    申请日:2011-04-13

    IPC分类号: H04L12/56

    CPC分类号: H04L47/27 H04L47/225

    摘要: A congestion control mechanism for TCP communication sessions is described. The congestion control mechanism adjusts the size of the congestion window based on a number, N, of parallel virtual connections. The number N of parallel virtual connections used to determine the congestion window is dynamically adjusted based on an estimation of the network condition.

    摘要翻译: 描述了TCP通信会话的拥塞控制机制。 拥塞控制机制基于N个并行虚拟连接来调整拥塞窗口的大小。 用于确定拥塞窗口的并行虚拟连接数N基于网络状况的估计而动态调整。