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41 条记录 (耗时 0.02 秒)

    Modifying a coded bitstream
    1.
    发明授权
    Modifying a coded bitstream 有权

    公开(公告)号：US09299120B2

    公开(公告)日：2016-03-29

    申请号：US12450343

    申请日：2007-11-02

    申请人： Dekun Zou ,  Jeffrey Adam Bloom ,  Peng Yin ,  Oscar Divorra Escoda

    发明人： Dekun Zou ,  Jeffrey Adam Bloom ,  Peng Yin ,  Oscar Divorra Escoda

    IPC分类号： G06F17/30 ,  G06T1/00 ,  H04N19/70 ,  H04N19/13 ,  H04N19/48 ,  H04N19/467

    CPC分类号： G06T1/0035 ,  G06T2201/0053 ,  H04N19/13 ,  H04N19/467 ,  H04N19/48 ,  H04N19/70

    摘要： Implementations may relate to various aspects of modifying, or using, a coded bitstream, or to recovering watermarking information from data. In one implementation, a coded bitstream is modified to allow for the application of a watermark to the coded bitstream without changing the coding of any other syntax elements in the bitstream. This is performed by identifying conditions necessary to change a coded syntax element without disrupting the interpretation of subsequent coded elements. The coded syntax element is replaced with another coded value if the modified value generates the same decoding variables as the original value would have generated. Particular implementations focus on syntax elements coded using entropy coding, including, for example, Context-based Adaptive Binary Arithmetic Coding (CABAC). Regardless of the type of coding or watermarking, various implementations may provide for recovering watermarking information. Particular implementations recover watermarking information using detection data and feature information.

    Method and apparatus for video coding using prediction data refinement
    4.
    发明申请
    Method and apparatus for video coding using prediction data refinement 有权
    使用预测数据精化的视频编码的方法和装置

    公开(公告)号：US20090238276A1

    公开(公告)日：2009-09-24

    申请号：US12311036

    申请日：2007-10-11

    申请人： Shay Har-Noy ,  Oscar Divorra Escoda ,  Peng Yin ,  Cristina Gomila

    发明人： Shay Har-Noy ,  Oscar Divorra Escoda ,  Peng Yin ,  Cristina Gomila

    IPC分类号： H04N7/32

    CPC分类号： H04N19/82 ,  H04N19/105 ,  H04N19/11 ,  H04N19/117 ,  H04N19/137 ,  H04N19/46 ,  H04N19/593 ,  H04N19/61

    摘要： There are provided methods and apparatus for video coding using prediction data refinement. An apparatus includes an encoder for encoding an image region of a picture. The encoder has a prediction refinement filter for refining at least one of an intra prediction and an inter prediction for the image region. The prediction refinement filter refines the inter prediction for the image region using at least one of previously decoded data and previously encoded data, the previously decoded data and the previously encoded data corresponding to pixel values in neighboring regions with respect to the image region.

    摘要翻译： 提供了使用预测数据精化的视频编码的方法和装置。 一种装置包括用于对图像的图像区域进行编码的编码器。 编码器具有用于对图像区域进行帧内预测和帧间预测中的至少一个的预测细化滤波器。 预测细化滤波器使用先前解码的数据和先前编码的数据中的至少一个，先前解码的数据和对应于相对于图像区域的相邻区域中的像素值的先前编码的数据来优化图像区域的帧间预测。

    Modifying a coded bitstream
    6.
    发明授权
    Modifying a coded bitstream 有权
    修改编码比特流

    公开(公告)号：US08358703B2

    公开(公告)日：2013-01-22

    申请号：US12450200

    申请日：2007-11-02

    申请人： Dekun Zou ,  Jeffrey Adam Bloom ,  Peng Yin ,  Oscar Divorra Escoda

    发明人： Dekun Zou ,  Jeffrey Adam Bloom ,  Peng Yin ,  Oscar Divorra Escoda

    IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04

    CPC分类号： G06T1/0035 ,  G06T2201/0053 ,  H04N19/13 ,  H04N19/467 ,  H04N19/48 ,  H04N19/70

    摘要： Implementations may relate to various aspects of modifying, or using, a coded bitstream, or to recovering watermarking information from data. In one implementation, a coded bitstream is modified to allow for the application of a watermark to the coded bitstream without changing the coding of any other syntax elements in the bitstream. This is performed by identifying conditions necessary to change a coded syntax element without disrupting the interpretation of subsequent coded elements. The coded syntax element is replaced with another coded value if the modified value generates the same decoding variables as the original value would have generated. Particular implementations focus on syntax elements coded using entropy coding, including, for example, Context-based Adaptive Binary Arithmetic Coding (CABAC). Regardless of the type of coding or watermarking, various implementations may provide for recovering watermarking information. Particular implementations recover watermarking information using detection data and feature information.

    摘要翻译： 实现可以涉及修改或使用编码比特流的各个方面，或者从数据恢复水印信息。 在一个实现中，编码比特流被修改为允许将水印应用于编码比特流，而不改变比特流中任何其他语法元素的编码。 这是通过识别改变编码语法元素所必需的条件而不中断后续编码元素的解释来执行的。 如果修改后的值产生与原始值相同的解码变量，则将编码语法元素替换为其他编码值。 特定实现集中于使用熵编码编码的语法元素，包括例如基于上下文的自适应二进制算术编码（CABAC）。 不管编码或水印的类型如何，各种实现可以提供恢复水印信息。 具体实现使用检测数据和特征信息恢复水印信息。

    Video coding method of exploiting the temporal redundancy between successive frames
    7.
    发明授权
    Video coding method of exploiting the temporal redundancy between successive frames 有权
    利用连续帧之间的时间冗余的视频编码方法

    公开(公告)号：US08208535B2

    公开(公告)日：2012-06-26

    申请号：US10540773

    申请日：2003-12-17

    申请人： Oscar Divorra Escoda ,  Michel Bierlaire ,  Pierre Vandergheynst ,  Julien Reichel ,  Francesco Ziliani

    发明人： Oscar Divorra Escoda ,  Michel Bierlaire ,  Pierre Vandergheynst ,  Julien Reichel ,  Francesco Ziliani

    IPC分类号： H04N7/12

    CPC分类号： H04N19/97 ,  H04N19/90

    摘要： The invention relates to a video coding method of exploiting the temporal redundancy between successive frames in a video sequence. A reference frame, called I-frame, is first approximated by a collection of geometric features, called atoms. The following predicted frames called, P-frames, are approximated by the geometric transformations of the geometric features (atoms) describing the previous frame. Preferably, the I-frame is approximated by a linear combination of N atoms (formula), selected in a redundant, structured library. They are indexed by a string of parameters representing the geometric transformations applied to the generating mother function g(x,y) and the cn are weighting coefficients.

    摘要翻译： 本发明涉及一种利用视频序列中连续帧之间的时间冗余的视频编码方法。 称为I帧的参考帧首先被称为原子的几何特征的集合近似。 称为P帧的以下预测帧由描述前一帧的几何特征（原子）的几何变换近似。 优选地，I帧由在冗余的结构化库中选择的N个原子（式）的线性组合近似。 它们由表示施加到生成母函数g（x，y）的几何变换的参数串构成索引，cn是加权系数。

    METHODS AND APPARATUS FOR PREDICTION REFINEMENT USING IMPLICIT MOTION PREDICTIONS
    8.
    发明申请
    METHODS AND APPARATUS FOR PREDICTION REFINEMENT USING IMPLICIT MOTION PREDICTIONS 审中-公开
    使用隐含运动预测的预测精炼的方法和装置

    公开(公告)号：US20110158320A1

    公开(公告)日：2011-06-30

    申请号：US12737945

    申请日：2009-09-01

    申请人： Yunfei Zheng ,  Oscar Divorra Escoda ,  Peng Yin ,  Joel Sole

    发明人： Yunfei Zheng ,  Oscar Divorra Escoda ,  Peng Yin ,  Joel Sole

    IPC分类号： H04N7/26

    CPC分类号： H04N19/50

    摘要： Methods and apparatus are provided for prediction refinement using implicit motion prediction. An apparatus includes an encoder for encoding an image block using explicit motion prediction to generate a coarse prediction for the image block and using implicit motion prediction to refine the coarse prediction.

    摘要翻译： 提供了使用隐式运动预测进行预测精化的方法和装置。 一种装置包括：编码器，用于使用显式运动预测对图像块进行编码，以生成图像块的粗略预测，并使用隐式运动预测来细化粗略预测。

    METHODS AND APPARATUS SUPPORTING MULTI-PASS VIDEO SYNTAX STRUCTURE FOR SLICE DATA
    9.
    发明申请
    METHODS AND APPARATUS SUPPORTING MULTI-PASS VIDEO SYNTAX STRUCTURE FOR SLICE DATA 有权
    支持多通道视频语法结构的方法和装置

    公开(公告)号：US20100124273A1

    公开(公告)日：2010-05-20

    申请号：US12451543

    申请日：2008-05-29

    申请人： Oscar Divorra Escoda ,  Peng Yin ,  Purvin Bibhas Pandit

    发明人： Oscar Divorra Escoda ,  Peng Yin ,  Purvin Bibhas Pandit

    IPC分类号： H04N7/26

    CPC分类号： H04N19/543 ,  H04N19/119 ,  H04N19/14 ,  H04N19/174 ,  H04N19/176 ,  H04N19/194 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70

    摘要： There are provided methods and apparatus supporting a multi-pass video structure for slice data. An apparatus includes an encoder for encoding at least one syntax data element related to at least two partitions of at least a portion of a picture. The at least one syntax element is encoded within a multi-pass syntax structure. The at least one syntax element belongs to a given class of data. The encoder encodes the at least one syntax data element with respect to all partitions of at least the portion of the picture prior to encoding a next class of data, wherein later coded data classes, including the next class, have at least one of an explicit coding and an implicit coding of at least one of a casual dependency and a non-casual dependency with respect to earlier coded data classes coded earlier than the next class.

    摘要翻译： 提供支持切片数据的多遍视频结构的方法和装置。 一种装置包括：编码器，用于编码与图片的至少一部分的至少两个分区相关的至少一个语法数据元素。 至少一个语法元素在多遍语法结构内进行编码。 至少一个语法元素属于给定类别的数据。 所述编码器在对下一类数据进行编码之前对至少所述图像部分的所有分区编码所述至少一个语法数据元素，其中后续编码数据类包括下一类具有至少一个显式 编码以及相对于比下一类编码的早期编码数据类别的随机依赖性和非随机依赖性中的至少一个的隐式编码。

    METHOD AND APPARATUS FOR MULTI-LATTICE SPARSITY-BASED FILTERING
    10.
    发明申请
    METHOD AND APPARATUS FOR MULTI-LATTICE SPARSITY-BASED FILTERING 审中-公开
    用于多尺度基于SPARSITY的滤波的方法和装置

    公开(公告)号：US20100118981A1

    公开(公告)日：2010-05-13

    申请号：US12451962

    申请日：2008-05-29

    申请人： Oscar Divorra Escoda ,  Peng Yin

    发明人： Oscar Divorra Escoda ,  Peng Yin

    IPC分类号： H04N7/32 ,  G06K9/40

    CPC分类号： G06T5/002 ,  G06T5/10 ,  G06T2207/20012 ,  G06T2207/20016 ,  G06T2207/20052

    摘要： There are provided a method and apparatus for multi-lattice sparsity-based filtering. The apparatus includes a filter for filtering picture data for a picture to generate an adapted weighted combination of at least two filtered versions of the picture. The picture data includes at least one sub-sampling of the picture.

    摘要翻译： 提供了一种用于多格子稀疏滤波的方法和装置。 该装置包括用于过滤图像的图像数据以生成图像的至少两个滤波版本的适应加权组合的滤波器。 图像数据包括图像的至少一个子采样。