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    Estimating rate-distortion characteristics of binary shape data
    2.
    发明授权
    Estimating rate-distortion characteristics of binary shape data 失效
    估计二进制形状数据的速率 - 失真特性

    公开(公告)号：US06542545B1

    公开(公告)日：2003-04-01

    申请号：US09410552

    申请日：1999-10-01

    申请人： Anthony Vetro ,  Huifang Sun ,  Yao Wang ,  Onur G. Guleyruz

    发明人： Anthony Vetro ,  Huifang Sun ,  Yao Wang ,  Onur G. Guleyruz

    IPC分类号： H04N1102

    CPC分类号： G06T9/20 ,  H04N19/147 ,  H04N19/21 ,  H04N19/29 ,  H04N19/33 ,  H04N19/40

    摘要： A method estimates rate and distortion characteristics of a video object. First and second object shape features are respectively extracted at a first and second resolution of the video object. First and second rate distortion characteristics of the video object are respectively determined from the extracted first and second object shape features according to first and second modeling parameters. The extracted object shape features can be discrete, such as states of binary shape patterns of the video object, or the object shape features can be continuous such as a set of statistical moments representing a probability density function of the video object.

    摘要翻译： 方法估计视频对象的速率和失真特性。 分别以视频对象的第一和第二分辨率提取第一和第二对象形状特征。 根据第一和第二建模参数，从所提取的第一和第二对象形状特征分别确定视频对象的第一和第二速率失真特性。 所提取的对象形状特征可以是离散的，诸如视频对象的二进制形状图案的状态，或者对象形状特征可以是连续的，例如表示视频对象的概率密度函数的一组统计矩。

    Encoding a video with a variable frame-rate while minimizing total average distortion
    3.
    发明授权
    Encoding a video with a variable frame-rate while minimizing total average distortion 失效
    以可变帧率编码视频，同时最小化总平均失真

    公开(公告)号：US07209519B2

    公开(公告)日：2007-04-24

    申请号：US09835691

    申请日：2001-04-16

    申请人： Anthony Vetro ,  Huifang Sun ,  Yao Wang

    发明人： Anthony Vetro ,  Huifang Sun ,  Yao Wang

    IPC分类号： H04N7/12

    CPC分类号： H04N19/587 ,  H04N19/124 ,  H04N19/132 ,  H04N19/147 ,  H04N19/149 ,  H04N19/152 ,  H04N19/172 ,  H04N19/20

    摘要： A method encodes a video as video objects. For each candidate object, a quantizer parameter and a skip parameter that jointly minimizes an average total distortion in the video are determined while satisfying predetermined constraints. The average total distortion includes spatial distortion of coded objects and spatial and temporal distortion of uncoded objects. Then, the candidate objects is encoded as the coded objects with the quantizer parameter and the skip parameter, and the candidate objects is skipped as the uncoded objects with the skip parameter.

    摘要翻译： 一种方法将视频编码为视频对象。 对于每个候选对象，在满足预定约束条件的同时确定联合最小化视频中的平均总失真的量化器参数和跳过参数。 平均总失真包括编码对象的空间失真和未编码对象的空间和时间失真。 然后，候选对象被编码为具有量化参数和跳过参数的编码对象，并且候选对象被跳过为具有跳过参数的未编码对象。

    Adaptive error-resilient video encoding using multiple description motion compensation
    5.
    发明授权
    Adaptive error-resilient video encoding using multiple description motion compensation 失效
    使用多描述运动补偿的自适应错误弹性视频编码

    公开(公告)号：US07106907B2

    公开(公告)日：2006-09-12

    申请号：US10273660

    申请日：2002-10-18

    申请人： Shunan Lin ,  Anthony Vetro ,  Yao Wang

    发明人： Shunan Lin ,  Anthony Vetro ,  Yao Wang

    IPC分类号： G06K9/36

    CPC分类号： H04N19/39 ,  H04N19/105 ,  H04N19/136 ,  H04N19/147 ,  H04N19/149 ,  H04N19/166 ,  H04N19/172 ,  H04N19/61

    摘要： A method estimates bit rates for sets of coding parameters, based on characteristics of a channel, and an end-to-end distortion is estimated based on signal statistics of the video. A particular set of coding parameters that satisfies an available bit rate of the channel and that minimizes the end-to-end distortion of the video is selected. Motion compensated multiple descriptions of the video are encoded according to the selected set of coding parameters.

    摘要翻译： 一种方法基于信道的特性估计编码参数集合的比特率，并且基于视频的信号统计来估计端到端失真。 选择满足信道的可用比特率并且使视频的端到端失真最小化的特定的一组编码参数。 视频的运动补偿多个描述根据所选择的编码参数组进行编码。

    Video encoding with motion-selective wavelet transform
    6.
    发明申请
    Video encoding with motion-selective wavelet transform 失效
    具有运动选择小波变换的视频编码

    公开(公告)号：US20050084014A1

    公开(公告)日：2005-04-21

    申请号：US10688133

    申请日：2003-10-17

    申请人： Beibei Wang ,  Anthony Vetro ,  Yao Wang

    发明人： Beibei Wang ,  Anthony Vetro ,  Yao Wang

    IPC分类号： H04N7/12 ,  H04N7/26

    CPC分类号： H04N19/615 ,  H04N19/13 ,  H04N19/39 ,  H04N19/61 ,  H04N19/63 ,  H04N19/635

    摘要： A method encodes a video by applying a dual-tree discrete wavelet transform to the video to generate sequences of wavelet coefficients. The sequences are compressed to produce a compressed bitstream corresponding to the video. The compression iteratively selects the wavelet coefficients in a large to small order, and entropy encodes the selected wavelet coefficient.

    摘要翻译： 一种方法通过对视频应用双树离散小波变换来编码视频以产生小波系数序列。 这些序列被压缩以产生对应于视频的压缩比特流。 压缩以大到小的顺序迭代地选择小波系数，并且熵编码所选择的小波系数。

    Video encoding with motion-selective wavelet transform
    7.
    发明授权
    Video encoding with motion-selective wavelet transform 失效
    具有运动选择小波变换的视频编码

    公开(公告)号：US07715480B2

    公开(公告)日：2010-05-11

    申请号：US10688133

    申请日：2003-10-17

    申请人： Beibei Wang ,  Anthony Vetro ,  Yao Wang

    发明人： Beibei Wang ,  Anthony Vetro ,  Yao Wang

    IPC分类号： H04N7/12

    CPC分类号： H04N19/615 ,  H04N19/13 ,  H04N19/39 ,  H04N19/61 ,  H04N19/63 ,  H04N19/635

    摘要： A method encodes a video by applying a dual-tree discrete wavelet transform to the video to generate sequences of wavelet coefficients. The sequences are compressed to produce a compressed bitstream corresponding to the video. The compression iteratively selects the wavelet coefficients in a large to small order, and entropy encodes the selected wavelet coefficient.

    摘要翻译： 一种方法通过对视频应用双树离散小波变换来编码视频以产生小波系数序列。 这些序列被压缩以产生对应于视频的压缩比特流。 压缩以大到小的顺序迭代地选择小波系数，并且熵编码所选择的小波系数。

    Apparatus and method to measure a molecular diffusion coefficient in a porous powder
    9.
    发明授权
    Apparatus and method to measure a molecular diffusion coefficient in a porous powder 有权

    公开(公告)号：US09719909B2

    公开(公告)日：2017-08-01

    申请号：US14530754

    申请日：2014-11-02

    申请人： Fei Wang ,  Dezheng Wang ,  Yao Wang

    发明人： Fei Wang ,  Dezheng Wang ,  Yao Wang

    IPC分类号： G01N15/08

    CPC分类号： G01N15/0826 ,  G01N33/00 ,  G01N2033/0091

    摘要： An apparatus and method for measuring molecular diffusivity in porous powders or minerals, e.g., the microporous synthetic minerals used for gas separation and chemical catalysis, were invented that allows a varying pressure in the gas around the powder during the measurement. This obviates the need for the pressure to be constant and the attendant complicated component parts. A mass balance model equation of the sample cell with the diffusivity as an adjustable parameter is used to deduce the sample cell pressure change versus time (uptake curve) until the equilibration of gas diffusion into the powder. A numerical analysis method is used to solve the mathematical model to compute a simulated uptake curve. Curve fitting of the simulated and measured uptake curves is used to optimize the diffusivity parameter, which gives the measured diffusivity. The apparatus and method are simple, easy to use, and automation is also simple.

    Coding using a redundant dictionary, such as video coding using a self-adaptive redundant dictionary including spatial and/or temporal prediction candidate atoms
    10.
    发明授权
    Coding using a redundant dictionary, such as video coding using a self-adaptive redundant dictionary including spatial and/or temporal prediction candidate atoms 有权
    使用冗余字典进行编码，例如使用包括空间和/或时间预测候选原子的自适应冗余字典的视频编码

    公开(公告)号：US09591322B2

    公开(公告)日：2017-03-07

    申请号：US14586800

    申请日：2014-12-30

    申请人： Yao Wang

    发明人： Yao Wang

    IPC分类号： H04N19/50 ,  G06K9/36

    CPC分类号： H04N19/50

    摘要： An example video encoder uses a self-adaptive dictionary that only depends on the block location, without requiring real time design/redesign of the dictionary. A mean-removed block may be directly represented using a redundant dictionary including all possible inter-prediction candidates with integer motion vectors (mean-removed). In general the dictionary may also contain some intra-prediction candidates and some pre-designed fixed dictionary atoms. The coefficients may be determined by minimizing the L0 norm of the coefficients subject to a constraint on the sparse approximation error. Using such a self-adaptive dictionary can lead to a very sparse representation, with significantly fewer non-zero coefficients than using the DCT transform on the prediction error. Some example embodiments consistent with the present invention use a modified orthogonal matching pursuit (“OMP”) algorithm to orthonormalize each new chosen atom with respect to all previously chosen and orthonormalized atoms. Each image block is represented by the quantized coefficients corresponding to the orthonormalized atoms.

    摘要翻译： 示例性视频编码器使用仅依赖于块位置的自适应字典，而不需要对字典进行实时设计/重新设计。 可以使用包括具有整数运动向量（均值去除）的所有可能的帧间预测候选的冗余字典来直接表示平均去除块。 通常，字典还可以包含一些帧内预测候选和一些预先设计的固定字典原子。 可以通过使经受稀疏近似误差的约束的系数的L0范数最小化来确定系数。 使用这样的自适应词典可以导致非常稀疏的表示，与对预测误差使用DCT变换相比，非零系数显着更少。 与本发明一致的一些示例性实施例使用修改的正交匹配追踪（“OMP”）算法来相对于所有先前选择的和正交归一化的原子对每个新选择的原子进行正交校正。 每个图像块由对应于正交归一化原子的量化系数表示。