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    Media processing devices for adaptive delivery of on-demand media, and methods thereof
    1.
    发明授权
    Media processing devices for adaptive delivery of on-demand media, and methods thereof 有权
    用于按需媒体的自适应递送的媒体处理装置及其方法

    公开(公告)号：US08838954B2

    公开(公告)日：2014-09-16

    申请号：US13016721

    申请日：2011-01-28

    申请人： Jun Tian ,  Hong Heather Yu ,  Hongbing Li

    发明人： Jun Tian ,  Hong Heather Yu ,  Hongbing Li

    IPC分类号： H04L9/32 ,  H04L9/00

    CPC分类号： H04L9/00

    摘要： In one embodiment, a method of streaming media includes partitioning a media stream to be transmitted into a first stream of media segments at a media server. The first stream of the media segments has a first sequence. An index table is generated to identify the first sequence of the first stream of the media segments. The index table is encrypted using a key. A second stream of the media segments is generated. The second stream has a second sequence, which is random relative to the first sequence. The encrypted index table and a transcoded media stream having the second stream of the media segments are transmitted.

    摘要翻译： 在一个实施例中，流媒体的方法包括将要发送的媒体流划分成媒体服务器处的媒体片段的第一流。 媒体片段的第一个流具有第一个序列。 生成索引表以识别媒体段的第一个流的第一个序列。 索引表使用密钥进行加密。 生成媒体片段的第二个流。 第二个流具有相对于第一个序列是随机的第二个序列。 发送加密索引表和具有媒体段的第二流的转码媒体流。

    System and method for bit-allocation in video coding
    2.
    发明授权
    System and method for bit-allocation in video coding 有权
    视频编码中位分配的系统和方法

    公开(公告)号：US08406297B2

    公开(公告)日：2013-03-26

    申请号：US12553775

    申请日：2009-09-03

    申请人： Taoran Lu ,  Zhifeng Chen ,  Dapeng Oliver Wu ,  Yu Huang ,  Jun Tian ,  Hong Heather Yu

    发明人： Taoran Lu ,  Zhifeng Chen ,  Dapeng Oliver Wu ,  Yu Huang ,  Jun Tian ,  Hong Heather Yu

    IPC分类号： H04N7/26

    CPC分类号： H04N19/17 ,  H04N19/124 ,  H04N19/139 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61

    摘要： A system and method for region-of-interest-based bit-allocation scheme for video coding is provided. A method for encoding an image sequence of inter-frames and intra-frames includes grouping the inter-frames and the intra-frames in at least one group of pictures (GOP), and performing a frame-level bit-allocation to inter-frames and the intra-frames in the GOP. For each frame of the inter-frames and the intra-frames in the GOP, the method also includes partitioning the frame into a plurality of macroblocks, identifying macroblocks in the plurality of macroblocks as having regions of interest (ROI), and performing a macroblock level bit-allocation for the frame based on macroblocks identified as having ROI. The method further includes encoding the image sequence based on the bit-allocations, thereby producing an encoded image sequence, and outputting the encoded image sequence.

    摘要翻译： 提供了一种用于视频编码的基于兴趣区域的比特分配方案的系统和方法。 用于对帧间和帧内帧的图像序列进行编码的方法包括：在至少一组图像（GOP）中对帧间帧和帧内进行分组，并且对帧间帧进行帧级比特分配 和GOP中的帧内。 对于GOP中的帧间和帧内的每帧，该方法还包括将帧划分成多个宏块，将多个宏块中的宏块识别为具有感兴趣区域（ROI），并且执行宏块 基于被识别为具有ROI的宏块的帧的级别位分配。 该方法还包括基于比特分配对图像序列进行编码，从而产生编码图像序列，并输出编码图像序列。

    Video signature based on image hashing and shot detection
    4.
    发明授权
    Video signature based on image hashing and shot detection 有权
    基于图像散列和镜头检测的视频签名

    公开(公告)号：US08837769B2

    公开(公告)日：2014-09-16

    申请号：US13098042

    申请日：2011-04-29

    申请人： Lei Yang ,  Qian Chen ,  Jun Tian ,  Dapeng Oliver Wu ,  Hong Heather Yu

    发明人： Lei Yang ,  Qian Chen ,  Jun Tian ,  Dapeng Oliver Wu ,  Hong Heather Yu

    IPC分类号： G06K9/00 ,  G06K9/62 ,  G06F17/30

    CPC分类号： G06F17/30799 ,  G06K9/00744

    摘要： In accordance with an embodiment, a method of comparing a first group of frames to a second group of frames includes electronically receiving the first group of frames, selecting a group of frames from the first group of frames as a first key frame set, calculating a hash distance between an image hash for each frame in the first key frame set to an image hash of each frame of a second key frame set taken from second group of frames, and choosing frames in the first group of frames with a minimum hash distances to respective reference frames to form a series of minimum hash distances.

    摘要翻译： 根据实施例，将第一组帧与第二组帧进行比较的方法包括电子地接收第一组帧，从第一组帧中选择一组帧作为第一关键帧集合，计算一个 第一关键帧中的每帧的图像散列之间的散列距离设置为从第二组帧取得的第二关键帧集合的每个帧的图像散列，并且选择具有最小散列距离的第一组帧中的帧 相应的参考帧以形成一系列最小散列距离。

    System and method for content protection in a content delivery network
    6.
    发明授权
    System and method for content protection in a content delivery network 有权
    内容传送网络内容保护的系统和方法

    公开(公告)号：US08731236B2

    公开(公告)日：2014-05-20

    申请号：US13340908

    申请日：2011-12-30

    申请人： Zhu Li ,  Jun Tian ,  Hong Heather Yu

    发明人： Zhu Li ,  Jun Tian ,  Hong Heather Yu

    IPC分类号： G06K9/00 ,  H04N1/40 ,  B42D15/00 ,  G09C3/00 ,  H04L9/32

    CPC分类号： G06K9/00744

    摘要： An embodiment of an apparatus to authenticate a sequence of video frames includes a process to choose intra-frames of the sequence and sample DC components thereof to produce a set of test fingerprints. To reduce a dimensionality of the test fingerprints, the DC components of the chosen intra-frames are multiplied by a projection matrix formed of eigenvectors associated with the larger eigenvalues of a covariance matrix for a library of frames. The projected test fingerprints are compared against a reference set of fingerprints for authentication. Time-stamp spacings of the chosen intra-frames are determined, and these spacings are employed to select candidate frames for authentication in the reference set of fingerprints.

    摘要翻译： 用于认证视频帧序列的装置的实施例包括选择序列的帧内和其DC样本的处理，以产生一组测试指纹。 为了降低测试指纹的维度，将所选择的帧内的DC分量乘以由与帧库相关的协方差矩阵的较大特征值相关联的特征向量形成的投影矩阵。 将投影的测试指纹与用于认证的参考指纹集进行比较。 确定所选择的帧内的时间间隔，并且采用这些间隔来选择参考指纹集中的认证候选帧。

    Compressive sampling for multimedia coding
    7.
    发明授权
    Compressive sampling for multimedia coding 有权
    多媒体编码的压缩采样

    公开(公告)号：US08553994B2

    公开(公告)日：2013-10-08

    申请号：US12358077

    申请日：2009-01-22

    申请人： Jun Tian ,  Dong Cao ,  Hong Heather Yu

    发明人： Jun Tian ,  Dong Cao ,  Hong Heather Yu

    IPC分类号： G06K9/36 ,  G06K9/46

    CPC分类号： H04N19/18 ,  H04N19/12 ,  H04N19/124 ,  H04N19/132 ,  H04N19/60 ,  H04N19/91

    摘要： An apparatus comprising a decorrelator, a compressive sampler coupled to the decorrelator, and an encoder coupled to the compressive sampler, wherein the compressive sampler is configured to receive sparse data and compress the sparse data using compressive sampling. Also included is a network component comprising at least one processor configured to implement a method comprising decorrelating sparse data or data including sparse data, compressing the sparse data using compressive sampling, and encoding the data. Also included is a method comprising receiving a data stream comprising a sparse data portion, compressing the sparse data portion using compressive sampling, and compressing the remaining data portion without using compressive sampling.

    摘要翻译： 一种包括去相关器，耦合到去相关器的压缩采样器和耦合到压缩采样器的编码器的装置，其中压缩采样器被配置为接收稀疏数据并使用压缩采样来压缩稀疏数据。 还包括网络组件，其包括至少一个处理器，其被配置为实现包括使稀疏数据解复用的稀疏数据或包括稀疏数据的数据，使用压缩采样来压缩稀疏数据以及对数据进行编码的方法。 还包括一种方法，包括接收包括稀疏数据部分的数据流，使用压缩采样压缩稀疏数据部分，并且在不使用压缩采样的情况下压缩剩余的数据部分。

    Compressed Domain Video Watermarking
    8.
    发明申请
    Compressed Domain Video Watermarking 有权
    压缩域视频水印

    公开(公告)号：US20120076206A1

    公开(公告)日：2012-03-29

    申请号：US13198371

    申请日：2011-08-04

    申请人： Jingteng Xue ,  Jun Tian ,  Hong Heather Yu

    发明人： Jingteng Xue ,  Jun Tian ,  Hong Heather Yu

    IPC分类号： H04N7/32 ,  H04N7/24 ,  H04N7/26

    CPC分类号： H04N19/00781 ,  H04N19/48 ,  H04N19/61

    摘要： In accordance with an embodiment, a method of watermarking encoded video frames includes electronically receiving a bitstream comprising a plurality of encoded video frames that are divided into a plurality of macro-blocks, determining macro-block dependencies based on prediction information in the received bitstream, determining a set of macro-blocks having a minimal number of macro-block dependencies, and embedding a watermark in a plurality of macro-blocks selected from the set of macro-blocks having the minimal number of macro-block dependencies.

    摘要翻译： 根据实施例，一种对编码视频帧进行水印处理的方法包括电子地接收包含被划分成多个宏块的多个编码视频帧的比特流，基于接收的比特流中的预测信息确定宏块依赖性， 确定具有最小数量的宏块相关性的一组宏块，以及将水印嵌入从具有最少数量的宏块依赖性的宏组中选择的多个宏块中。

    Media Processing Devices With Joint Encryption-Compression, Joint Decryption-Decompression, And Methods Thereof
    9.
    发明申请
    Media Processing Devices With Joint Encryption-Compression, Joint Decryption-Decompression, And Methods Thereof 审中-公开
    具有联合加密压缩，联合解密 - 解压缩及其方法的媒体处理设备

    公开(公告)号：US20110191587A1

    公开(公告)日：2011-08-04

    申请号：US13015308

    申请日：2011-01-27

    申请人： Jun Tian ,  Hong Heather Yu

    发明人： Jun Tian ,  Hong Heather Yu

    IPC分类号： H04L9/32

    CPC分类号： H04L9/32

    摘要： In one embodiment, a method of adaptive media streaming includes receiving a cipher media stream at a media device. The cipher media stream is compliant with a media compression standard. The cipher media stream is decrypted and decoded using an inverse stream cipher algorithm and a compressed media stream is generated by combining the cipher media stream with a keystream.

    摘要翻译： 在一个实施例中，自适应媒体流的方法包括在媒体设备处接收加密媒体流。 密码媒体流符合媒体压缩标准。 使用逆流密码算法对密码媒体流进行解密和解码，并通过将密码媒体流与密钥流组合来生成压缩媒体流。

    Media Processing Devices For Adaptive Delivery Of On-Demand Media, And Methods Thereof
    10.
    发明申请
    Media Processing Devices For Adaptive Delivery Of On-Demand Media, And Methods Thereof 有权
    用于按需传递的自适应传送的媒体处理设备及其方法

    公开(公告)号：US20110191577A1

    公开(公告)日：2011-08-04

    申请号：US13016721

    申请日：2011-01-28

    申请人： Jun Tian ,  Hong Heather Yu ,  Hongbing Li

    发明人： Jun Tian ,  Hong Heather Yu ,  Hongbing Li

    IPC分类号： H04L9/00

    CPC分类号： H04L9/00

    摘要： In one embodiment, a method of streaming media includes partitioning a media stream to be transmitted into a first stream of media segments at a media server. The first stream of the media segments has a first sequence. An index table is generated to identify the first sequence of the first stream of the media segments. The index table is encrypted using a key. A second stream of the media segments is generated. The second stream has a second sequence, which is random relative to the first sequence. The encrypted index table and a transcoded media stream having the second stream of the media segments are transmitted.

    摘要翻译： 在一个实施例中，流媒体的方法包括将要发送的媒体流划分成媒体服务器处的媒体片段的第一流。 媒体片段的第一个流具有第一个序列。 生成索引表以识别媒体段的第一个流的第一个序列。 索引表使用密钥进行加密。 生成媒体片段的第二个流。 第二个流具有相对于第一个序列是随机的第二个序列。 发送加密索引表和具有媒体段的第二流的转码媒体流。