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    Method and Device for Controlling Video Quality Fluctuation Based on Scalable Video Coding
    3.
    发明申请
    Method and Device for Controlling Video Quality Fluctuation Based on Scalable Video Coding 审中-公开
    基于可扩展视频编码控制视频质量波动的方法和装置

    公开(公告)号：US20140161176A1

    公开(公告)日：2014-06-12

    申请号：US14130623

    申请日：2013-01-04

    申请人： Peking University ,  Beijing Founder Electronics Co., Ltd. ,  Peking University Founder Group Co., Ltd.

    发明人： Jun Sun ,  Yilei Wang ,  Keji Chen ,  Zongming Guo

    IPC分类号： H04N19/31

    CPC分类号： H04N19/31 ,  H04N21/234327 ,  H04N21/2402

    摘要： Disclosed are a method and an apparatus for controlling video quality fluctuation based on scalable video coding. The method includes: performing scalable video coding on video data to be transmitted to generate a base layer and at least one enhancement layer; sending the video data after the scalable video coding to a terminal device; determining a currently expected bit rate according to a transmission status of the video data on a currently used channel, the currently expected bit rate being the maximum data transmission bit rate that the predicted currently used channel can sustain; acquiring the currently highest enhancement layer according to the currently expected bit rate, the sum of all bit rates occupied when transmitting video data under the currently highest enhancement layer being no larger than the currently expected bit rate; and sending the video data under the currently highest enhancement layer to the terminal device.

    摘要翻译： 公开了一种基于可伸缩视频编码来控制视频质量波动的方法和装置。 该方法包括：对要发送的视频数据执行可分级视频编码以生成基本层和至少一个增强层; 在可伸缩视频编码之后将视频数据发送到终端设备; 根据当前使用的信道上的视频数据的传输状态来确定当前预期的比特率，当前预期比特率是预测的当前使用的信道可以维持的最大数据传输比特率; 根据当前预期的比特率获取当前最高的增强层，当在当前最高增强层下传输视频数据时占用的所有比特率的总和不大于当前预期比特率; 并将当前最高增强层下的视频数据发送到终端设备。

    IMAGE INTERPOLATION METHOD AND DEVICE BASED ON AUTOREGRESSIVE MODEL
    4.
    发明申请
    IMAGE INTERPOLATION METHOD AND DEVICE BASED ON AUTOREGRESSIVE MODEL 有权
    基于自适应模型的图像插值方法和装置

    公开(公告)号：US20150262334A1

    公开(公告)日：2015-09-17

    申请号：US14434975

    申请日：2013-11-06

    申请人： PEKING UNIVERSITY ,  PEKING UNIVERSITY FOUNDER GROUP CO., LTD. ,  BEIJING FOUNDER ELECTRONICS CO., LTD.

    发明人： Mading Li ,  Jiaying Liu ,  Jie Ren ,  Zongming Guo

    IPC分类号： G06T3/40 ,  G06T5/50

    CPC分类号： G06T3/4007 ,  G06T5/50 ,  G06T2207/20224

    摘要： An image interpolation method and device based on an autoregressive model. The method first, interpolating a low-resolution image up to a target scale to obtain an interpolated image M; determining a local area W in the image M to be interpolated, establishing two autoregressive models for each pixel point in the local area W except for the edge pixel points, and determining an initial objective function F0 according to the autoregressive models; down sampling the local area W except for the edge pixel points to the same size as the low-resolution image to obtain a local area W′, subtracting a corresponding area in the low-resolution image from W′ one pixel value by one pixel value, and adding the result to the initial objective function F0 to obtain an objective function F; performing iteration on the objective function F to obtain a pixel point value of a center block of W.

    摘要翻译： 一种基于自回归模型的图像插值方法和装置。 该方法首先将低分辨率图像内插到目标尺度以获得内插图像M; 确定要内插的图像M中的局部区域W，为除了边缘像素点之外的局部区域W中的每个像素点建立两个自回归模型，以及根据自回归模型确定初始目标函数F0; 将边缘像素点除以与低分辨率图像相同的尺寸的局部区域W进行下采样以获得局部区域W'，从W'一个像素值减去一个像素值的低分辨率图像中的对应区域 并将结果加到初始目标函数F0以获得目标函数F; 对目标函数F执行迭代以获得W的中心块的像素点值。

    Method and Device for Transmitting and Receiving Video
    6.
    发明申请
    Method and Device for Transmitting and Receiving Video 有权
    发送和接收视频的方法和设备

    公开(公告)号：US20150055721A1

    公开(公告)日：2015-02-26

    申请号：US14123133

    申请日：2012-12-28

    申请人： Peking University ,  Beijing Founder Electronics Co., Ltd. ,  Peking University Founder Group Co., Ltd.

    发明人： Chao Zhou ,  Xinggong Zhang ,  Zongming Guo

    IPC分类号： H04L1/06 ,  H04L1/00 ,  H04L29/06

    CPC分类号： H04L1/0625 ,  H04L1/0017 ,  H04L1/0026 ,  H04L1/06 ,  H04L65/60 ,  H04L65/80

    摘要： Disclosed is a method for transmitting a video, which is used for increasing video transmission and receiving quality. The method comprises: generating multiple layers of video streams; in accordance with an obtained first distortion value, obtaining a corresponding first antennae/video matching matrix; separately dispatching each layer of video streams to respective antennae in accordance with the first antennae/video matching matrix; and transmitting same in accordance with the dispatched video streams. Also disclosed are a device for achieving the method, and a method and device for receiving a video.

    摘要翻译： 公开了一种用于发送用于增加视频传输和接收质量的视频的方法。 该方法包括：生成多层视频流; 根据获得的第一失真值，获得对应的第一天线/视频匹配矩阵; 根据第一天线/视频匹配矩阵单独地分配每层视频流到相应的天线; 并根据发送的视频流进行发送。 还公开了用于实现该方法的装置，以及用于接收视频的方法和装置。

    Image interpolation method and device based on autoregressive model
    8.
    发明授权
    Image interpolation method and device based on autoregressive model 有权

    公开(公告)号：US09672590B2

    公开(公告)日：2017-06-06

    申请号：US14434975

    申请日：2013-11-06

    申请人： Peking University ,  Peking University Founder Group Co., Ltd. ,  Beijing Founder Electronics Co., Ltd.

    发明人： Mading Li ,  Jiaying Liu ,  Jie Ren ,  Zongming Guo

    IPC分类号： G06T3/40 ,  G06T5/50

    CPC分类号： G06T3/4007 ,  G06T5/50 ,  G06T2207/20224

    摘要： An image interpolation method and device based on an autoregressive model. The method first, interpolating a low-resolution image up to a target scale to obtain an interpolated image M; determining a local area W in the image M to be interpolated, establishing two autoregressive models for each pixel point in the local area W except for the edge pixel points, and determining an initial objective function F0 according to the autoregressive models; down sampling the local area W except for the edge pixel points to the same size as the low-resolution image to obtain a local area W′, subtracting a corresponding area in the low-resolution image from W′ one pixel value by one pixel value, and adding the result to the initial objective function F0 to obtain an objective function F; performing iteration on the objective function F to obtain a pixel point value of a center block of W.

    Nonlocality based super resolution reconstruction method and device
    9.
    发明授权
    Nonlocality based super resolution reconstruction method and device 有权
    基于非局部性的超分辨率重构方法及装置

    公开(公告)号：US09111367B2

    公开(公告)日：2015-08-18

    申请号：US14129764

    申请日：2012-12-13

    申请人： Peking University ,  Peking University Founder Group Co., Ltd. ,  Beijing Founder Electronics Co., Ltd.

    发明人： Jiaying Liu ,  Yue Zhou ,  Jie Ren ,  Zongming Guo

    IPC分类号： G06K9/36 ,  G06T3/40 ,  H04N19/51 ,  H04N19/59

    CPC分类号： G06T3/4053 ,  H04N19/51 ,  H04N19/59

    摘要： The present invention relates to the field of digital image enhancement technologies, and more particularly to a non-locality-based super-resolution reconstruction method and device, so as to solve the problem of relatively low resolution of an image after non-locality-based super-resolution reconstruction in the prior art. The method in the embodiment of the present invention comprises: determining a position of a search window where a current macro-block is mapped in each of other image frames; determining a search window where the current pixel block is mapped in the each of the image frames, according to the position of the search window where the macro-block, where the pixel corresponding to the current pixel block is located, is mapped in the each of the image frames, and determining a similarity value of each determined pixel block in the determined search window relative to the current pixel block respectively; and determining an optimized central pixel value of each pixel block according to the determined similarity value. By use of the embodiments of the present invention, the resolution of an image subjected to non-locality-based super-resolution reconstruction is enhanced.

    摘要翻译： 本发明涉及数字图像增强技术的领域，更具体地涉及一种基于非局部性的超分辨率重建方法和装置，以解决非局部性之后图像分辨率相对较低的问题 现有技术中的超分辨率重构。 本发明实施例中的方法包括：确定当前宏块映射到其他图像帧的每一个中的搜索窗口的位置; 根据搜索窗口的位置来确定当前像素块被映射到每个图像帧中的搜索窗口，其中与当前像素块相对应的像素所在的宏块被映射到每个 并且确定所确定的搜索窗口中的每个确定的像素块相对于当前像素块的相似度值; 以及根据所确定的相似度值确定每个像素块的优化的中心像素值。 通过使用本发明的实施例，增强了经受基于非局部性的超分辨率重构的图像的分辨率。

    Method and device for transmitting and receiving video
    10.
    发明授权
    Method and device for transmitting and receiving video 有权
    用于发送和接收视频的方法和设备

    公开(公告)号：US09106404B2

    公开(公告)日：2015-08-11

    申请号：US14123133

    申请日：2012-12-28

    申请人： Peking University ,  Peking University Founder Group Co., Ltd. ,  Beijing Founder Electronics Co., Ltd.

    发明人： Chao Zhou ,  Xinggong Zhang ,  Zongming Guo

    IPC分类号： H04K1/10 ,  H04L27/28 ,  H04L1/06 ,  H04L1/00 ,  H04L29/06

    CPC分类号： H04L1/0625 ,  H04L1/0017 ,  H04L1/0026 ,  H04L1/06 ,  H04L65/60 ,  H04L65/80

    摘要： Disclosed is a method for transmitting a video, which is used for increasing video transmission and receiving quality. The method comprises: generating multiple layers of video streams; in accordance with an obtained first distortion value, obtaining a corresponding first antennae/video matching matrix; separately dispatching each layer of video streams to respective antennae in accordance with the first antennae/video matching matrix; and transmitting same in accordance with the dispatched video streams. Also disclosed are a device for achieving the method, and a method and device for receiving a video.

    摘要翻译： 公开了一种用于发送用于增加视频传输和接收质量的视频的方法。 该方法包括：生成多层视频流; 根据获得的第一失真值，获得对应的第一天线/视频匹配矩阵; 根据第一天线/视频匹配矩阵单独地分配每层视频流到相应的天线; 并根据发送的视频流进行发送。 还公开了用于实现该方法的装置，以及用于接收视频的方法和装置。