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公开(公告)号：WO2015013550A1
公开(公告)日：2015-01-29
申请号：PCT/US2014/048085
申请日：2014-07-24
发明人： WANG, Xin , FAN, Yuqun , ZHOU, Lei , LIU, Xin , ZHANG, Shaobo , LIU, Yongliang
IPC分类号： H04N19/00
CPC分类号： H04L65/60 , H04L47/225 , H04L47/70 , H04L65/4092 , H04L65/602 , H04N21/23439 , H04N21/2385 , H04N21/2402 , H04N21/25866 , H04N21/26258 , H04N21/4621 , H04N21/6373 , H04N21/64322 , H04N21/84 , H04N21/8456
摘要： A system, method and device are configured to guarantee bandwidth to adaptive streaming clients through negotiation with a network unit to achieve better quality of services in adaptive streaming that utilizes network bandwidth conditions more accurately than based on client estimations.
摘要翻译： 系统，方法和设备被配置为通过与网络单元的协商来保证自适应流客户端的带宽，以在自适应流中实现更好的服务质量，其利用网络带宽条件比基于客户端估计更准确。
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公开(公告)号：WO2014011848A3
公开(公告)日：2014-01-16
申请号：PCT/US2013/050035
申请日：2013-07-11
发明人： ZHANG, Shaobo , WANG, Xin , GILADI, Alexander , LIU, Xin , XU, Yangpo , AI, Changquan , DI, Peiyun
IPC分类号： H04L29/06
摘要： A method for preparing media content for adaptive streaming, wherein the method comprises: determining a target quality for a media content that comprises a plurality of segments, detecting a plurality of content types that indicate a plurality of complexity for the segments, determining a plurality of bitrates for the content types using the target quality, and encoding the segments using the bitrates.
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公开(公告)号：WO2020256698A1
公开(公告)日：2020-12-24
申请号：PCT/US2019/037638
申请日：2019-06-18
摘要： A computer-implemented method for image resolution assessment of a digital image includes extracting a plurality of image chips from the digital image according to a predetermined sampling pattern. A Gaussian window is applied to each image chip of the plurality of image chips to generate a plurality of processed image chips. Two-dimensional (2D) energy spectrum is determined for each processed image chip of the plurality of processed image chips using a discrete Fourier transformation (DFT). One-dimensional (1D) energy spectrum is determined for each processed image chip of the plurality of image chips using the 2D energy spectrum. A threshold is applied to the 1D energy spectrum to obtain an image resolution for each processed image chip of the plurality of processed image chips. A video characteristic of the digital image is adjusted based on a maximum image resolution of the image resolutions determined for the plurality of processed image chips.
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公开(公告)号：WO2020256704A1
公开(公告)日：2020-12-24
申请号：PCT/US2019/037727
申请日：2019-06-18
发明人： SU, Wei , LIU, Xin , SUN, Hongyu , ZHU, Xiaoxing , ZHANG, Fan
IPC分类号： G06T3/40
摘要： A computer-implemented method for increasing the image resolution of a digital image. The method includes performing bicubic upsampling of the digital image to generate a base high-resolution (HR) image. The digital image is converted from a red-green-blue (RGB) color space to a Luma (Y), Chroma Blue Difference (Cb), and Chroma Red Difference (Cr) (YCbCr) color space to generate a low-resolution (LR) residual image. A plurality of convolutional layers of a neural network model is applied to the LR residual image to convert it to a plurality of HR residual sub-images corresponding to the digital image. An HR image corresponding to the digital image is generated using the base HR image and the plurality of HR residual sub-images.
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公开(公告)号：WO2014113486A1
公开(公告)日：2014-07-24
申请号：PCT/US2014/011706
申请日：2014-01-15
申请人： FUTUREWEI TECHNOLOGIES, INC. , ZHANG, Shaobo , GILADI, Alexander , WANG, Xin , XU, Yangpo , LIU, Xin , DI, Peiyun
发明人： ZHANG, Shaobo , GILADI, Alexander , WANG, Xin , XU, Yangpo , LIU, Xin , DI, Peiyun
IPC分类号： H04N7/173
CPC分类号： H04L65/80 , H04L65/1069 , H04L65/4084 , H04L65/4092 , H04L65/601 , H04L67/02 , H04L67/42
摘要： Different representations are associated with an instance of media content, and a representation can include multiple portions of media content. A respective quality value and bitrate can be associated with each of the portions. Information about the instance of content, including bitrate and quality information, can be accessed by and/or sent to a client. The quality information indicates the availability of measures of quality (e.g., quality values) and where those quality values reside or how they can be retrieved. The client can use quality as well as bitrate to make more intelligent decisions while streaming the content. For example, while the content is being downloaded over a network, the client can adapt to changes in available network bandwidth by selecting one portion of the instance of media content over another based not just on its bitrate but also based on its quality value.
摘要翻译： 不同的表示与媒体内容的实例相关联，并且表示可以包括媒体内容的多个部分。 相应的质量值和比特率可以与每个部分相关联。 有关内容实例（包括比特率和质量信息）的信息可以由客户端访问和/或发送给客户端。 质量信息指示质量度量（例如，质量值）的可用性以及这些质量值在哪里或如何被检索的可用性。 客户端可以使用质量和比特率在流式传输内容时做出更明智的决策。 例如，当通过网络下载内容时，客户端可以通过不仅基于其比特率而且还基于其质量值，通过选择媒体内容的实例的一部分而不是基于其比特率来适应可用网络带宽的变化。
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