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173 条记录 (耗时 0.022 秒)

    Inverse tone mapping for bit-depth scalable image coding
    93.
    发明授权
    Inverse tone mapping for bit-depth scalable image coding 有权
    用于位深度可缩放图像编码的逆色调映射

    公开(公告)号：US08085852B2

    公开(公告)日：2011-12-27

    申请号：US11768434

    申请日：2007-06-26

    申请人： Shan Liu ,  Anthony Vetro ,  Woo-Shik Kim

    发明人： Shan Liu ,  Anthony Vetro ,  Woo-Shik Kim

    IPC分类号： H04N11/02 ,  H04B1/66 ,  H04B14/00

    CPC分类号： H04N19/36 ,  H04N19/105 ,  H04N19/126 ,  H04N19/134 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593

    摘要： A method performs inverse tone mapping of an image in a decoder. For each block of each color channel of the image the following steps are performed. A scaling factor is determined for a current block of the image by adding a predicted scaling factor for the current block to a difference between the predicted scaling factor and the scaling factor of an adjacent block. An offset value for the current block is determined by adding a predicted offset for the current block to a difference between the predicted offset value and the offset value of the adjacent block. The scaling factor and the offset value are applied to pixel intensity values of the current block to produce a mapped block in which a bit-depth of the mapped block is greater than the bit-depth of the current block.

    摘要翻译： 一种方法对解码器中的图像执行逆色调映射。 对于图像的每个颜色通道的每个块，执行以下步骤。 通过将当前块的预测缩放因子添加到预测缩放因子和相邻块的缩放因子之间的差异来为图像的当前块确定缩放因子。 通过将当前块的预测偏移量加到预测偏移值和相邻块的偏移值之间的差值来确定当前块的偏移值。 缩放因子和偏移值被应用于当前块的像素强度值，以产生其中映射块的位深大于当前块的位深度的映射块。

    Method and system for decoding and displaying 3D light fields
    94.
    发明授权
    Method and system for decoding and displaying 3D light fields 有权
    解码和显示3D光场的方法和系统

    公开(公告)号：US08044994B2

    公开(公告)日：2011-10-25

    申请号：US11696596

    申请日：2007-04-04

    申请人： Anthony Vetro ,  Sehoon Yea ,  Wojciech Matusik ,  Hanspeter Pfister ,  Matthias Zwicker

    发明人： Anthony Vetro ,  Sehoon Yea ,  Wojciech Matusik ,  Hanspeter Pfister ,  Matthias Zwicker

    IPC分类号： H04N13/00 ,  H04N3/14 ,  H04N5/232

    CPC分类号： H04N19/597 ,  H04N13/122 ,  H04N13/128 ,  H04N13/243

    摘要： A method and system acquire and display light fields. A continuous light field is reconstructed from input samples of an input light field of a 3D scene acquired by cameras according to an acquisition parameterization. The continuous light is reparameterized according to a display parameterization and then prefiltering and sampled to produce output samples having the display parametrization. The output samples are displayed as an output light field using a 3D display device. The reconstruction can be performed by interpolating the input samples having the different views.

    摘要翻译： 一种方法和系统获取和显示光场。 根据采集参数化，由摄像机获取的3D场景的输入光场的输入样本重建连续光场。 根据显示参数化对连续光进行重新参数化，然后对其进行预过滤和采样，以产生具有显示参数化的输出样本。 使用3D显示装置将输出样本显示为输出光场。 可以通过内插具有不同视图的输入样本来执行重建。

    Method for Determining Functions Applied to Signals
    95.
    发明申请
    Method for Determining Functions Applied to Signals 有权
    确定应用于信号的功能的方法

    公开(公告)号：US20110176672A1

    公开(公告)日：2011-07-21

    申请号：US12631939

    申请日：2009-12-07

    申请人： Shantanu Rane ,  Wei Sun ,  Anthony Vetro

    发明人： Shantanu Rane ,  Wei Sun ,  Anthony Vetro

    IPC分类号： H04L9/28

    CPC分类号： H04L9/008

    摘要： Embodiments of the invention discloses a system and a method for determining a result of applying a function to signals including a first signal and a second signal, wherein the function is a polynomial function of the signals such that a monomial in the function includes the first signal having a power less than or equal to a first maximum power, and wherein the first signal is partitioned into a first subsignal and a second subsignal, comprising a processor for performing steps of the method, comprising the steps of acquiring a second signal and a second subsignal; acquiring a set of encrypted powers of the first subsignal, wherein the set of encrypted powers of the first subsignal includes homomorphically encrypted powers of the first subsignal; and determining an encrypted result of the function based on a second subsignal, the set of encrypted powers of the first subsignal, and the second signal.

    摘要翻译： 本发明的实施例公开了一种用于确定对包括第一信号和第二信号的信号应用功能的结果的系统和方法，其中所述函数是所述信号的多项式函数，使得所述函数中的单项包括所述第一信号 具有小于或等于第一最大功率的功率，并且其中所述第一信号被划分为第一子信号和第二子信号，包括用于执行所述方法的步骤的处理器，包括以下步骤：获取第二信号和第二信号 次信号 获取所述第一子信号的一组加密功率，其中所述第一子信号的加密功率集合包括所述第一子信号的同态加密功率; 以及基于第二子信号确定所述函数的加密结果，所述第一子信号的加密功率集合和所述第二信号。

    Inverse tone mapping for bit-depth scalable image coding adapted to variable block sizes
    96.
    发明授权
    Inverse tone mapping for bit-depth scalable image coding adapted to variable block sizes 有权
    适用于可变块大小的位深度可缩放图像编码的逆色调映射

    公开(公告)号：US07983496B2

    公开(公告)日：2011-07-19

    申请号：US12039007

    申请日：2008-02-28

    申请人： Shan Liu ,  Anthony Vetro

    发明人： Shan Liu ,  Anthony Vetro

    IPC分类号： G06K9/36

    CPC分类号： H04N19/36 ,  H04N19/102 ,  H04N19/126 ,  H04N19/17 ,  H04N19/176 ,  H04N19/186 ,  H04N19/30 ,  H04N19/46 ,  H04N19/61

    摘要： A method performs inverse tone mapping of an image in a decoder. For each block of each color channel of the image a scaling factor is determined by adding a predicted scaling factor for the current block to a difference between the predicted scaling factor and the scaling factor of an adjacent block. An offset value for the current block is determined by adding a predicted offset for the current block to a difference between the predicted offset value and the offset value of the adjacent block. The scaling factor and the offset value are applied to pixel intensity values of the current block to produce a mapped block. The inverse tone mapping can also be applied to blocks of different sizes.

    摘要翻译： 一种方法对解码器中的图像执行逆色调映射。 对于图像的每个颜色通道的每个块，通过将当前块的预测缩放因子添加到预测缩放因子和相邻块的缩放因子之间的差来确定缩放因子。 通过将当前块的预测偏移量加到预测偏移值和相邻块的偏移值之间的差值来确定当前块的偏移值。 缩放因子和偏移值被应用于当前块的像素强度值以产生映射块。 逆音调映射也可以应用于不同大小的块。

    Method for Secure Evaluation of a Function Applied to Encrypted Signals
    97.
    发明申请
    Method for Secure Evaluation of a Function Applied to Encrypted Signals 审中-公开
    用于安全评估应用于加密信号的功能的方法

    公开(公告)号：US20100329448A1

    公开(公告)日：2010-12-30

    申请号：US12495721

    申请日：2009-06-30

    申请人： Shantanu D. Rane ,  Wei Sun ,  Anthony Vetro

    发明人： Shantanu D. Rane ,  Wei Sun ,  Anthony Vetro

    IPC分类号： H04L9/28

    CPC分类号： H04L9/3231 ,  H04L9/008 ,  H04L2209/46

    摘要： Embodiments of the invention describe a system and a method for determining securely a result of applying a function to a first encrypted signal and a second encrypted signal resulted from encrypting a first signal and a second signal respectively, The method expresses the function as a linear combination of homomorphic components, wherein a homomorphic component is an algebraic combination of the first signals and the second signal such that an encrypted result of the algebraic combination is suitable to be calculated directly from the first encrypted signal and the second encrypted signal using homomorphic properties. Next, the method determines encrypted results of the homomorphic components from the first encrypted signal and the second encrypted signal, and combines the encrypted results of the homomorphic components according to the linear combination to produce the encrypted result of the function. The method is executed by a plurality of processors.

    摘要翻译： 本发明的实施例描述了一种系统和方法，用于安全地确定对第一加密信号应用功能的结果以及由加密第一信号和第二信号而产生的第二加密信号。该方法将该功能表示为线性组合 的同态分量，其中同态分量是第一信号和第二信号的代数组合，使得代数组合的加密结果适于直接从第一加密信号和使用同态属性的第二加密信号计算。 接下来，该方法从第一加密信号和第二加密信号确定同态分量的加密结果，并且根据线性组合组合同态分量的加密结果以产生该功能的加密结果。 该方法由多个处理器执行。

    Method for Embedding a Message into a Document
    99.
    发明申请
    Method for Embedding a Message into a Document 审中-公开
    将消息嵌入到文档中的方法

    公开(公告)号：US20100142004A1

    公开(公告)日：2010-06-10

    申请号：US12329869

    申请日：2008-12-08

    申请人： Shantanu Rane ,  Avinash Laxmisha Varna ,  Anthony Vetro

    发明人： Shantanu Rane ,  Avinash Laxmisha Varna ,  Anthony Vetro

    IPC分类号： G06K15/00 ,  B42D15/00

    CPC分类号： G06K15/00 ,  B42D15/00 ,  B42D25/333 ,  B42D2035/08 ,  G07D7/005

    摘要： A method that embeds a message into a document containing a number of glyphs and extracts said message from a degraded version of said document. Each symbol of the message is represented as a geometrical relationship of two discrete sets of pixels, in which the pixels in each set are adjacent. The pixels associated with the glyphs selected from the document are combined with the discrete sets of pixels to produce modified glyphs that contain the embedded message.

    摘要翻译： 将消息嵌入到包含多个字形的文档中并从所述文档的劣化版本提取所述消息的方法。 消息的每个符号被表示为两组离散像素组的几何关系，其中每组中的像素相邻。 与从文档中选择的字形相关联的像素与离散的像素组合以产生包含嵌入消息的修改字形。

    Server-Driven Progressive Image Transmission
    100.
    发明申请
    Server-Driven Progressive Image Transmission 审中-公开
    服务器驱动的逐行图像传输

    公开(公告)号：US20090003270A1

    公开(公告)日：2009-01-01

    申请号：US11770874

    申请日：2007-06-29

    申请人： Derek L. Schwenke ,  Anthony Vetro

    发明人： Derek L. Schwenke ,  Anthony Vetro

    IPC分类号： H04L29/06

    CPC分类号： H04L65/607 ,  H04N21/23439 ,  H04N21/2402 ,  H04N21/2405 ,  H04N21/8456

    摘要： A system and method generates a progressive codestream representing an image. The codestream of packets representing an image is parsed to obtain a parsed packets and metadata for each parsed packet. The parsed packets are decomposed to decomposed packets according to the metadata and a progressive transmission policy. The decomposed packets are assigned to sequentially arranged segments according to the metadata and the transmission policy, in which each segment includes a header, and in which an ordering of the packet in the codestream is different than an ordering of the decomposed packets in the plurality of segments. A client composes the decomposed packets according to the header in the segments to progressively reconstruct the image in the client.

    摘要翻译： 系统和方法产生代表图像的渐进码流。 解析代表图像的数据包的码流，以获得每个解析的数据包的解析数据包和元数据。 解析的分组根据元数据和逐行传输策略被分解成分解的分组。 分解的分组根据元数据和传输策略被分配到顺序排列的分段，其中每个分段包括报头，并且其中码流中的分组的排序不同于多个分组中的分解分组的排序 细分。 客户端根据片段中的标题组合分解的包，以逐渐重建客户端中的图像。