公开(公告)号：US08692840B2

公开(公告)日：2014-04-08

申请号：US13366348

申请日：2012-02-05

申请人： Ngai-Man Cheung ,  Dong Tian ,  Anthony Vetro ,  Huifang Sun

发明人： Ngai-Man Cheung ,  Dong Tian ,  Anthony Vetro ,  Huifang Sun

IPC分类号： G06T15/00 ,  G09G5/00 ,  G06K9/40 ,  G06K9/00 ,  G06K9/36 ,  G06F3/048

CPC分类号： G06T15/04 ,  G06T7/0002 ,  G06T15/20 ,  G06T2207/10012 ,  G06T2207/30168

摘要： A quality of a virtual image for a synthetic viewpoint in a 3D scene is determined. The 3D scene is acquired by texture images, and each texture image is associated with a depth image acquired by a camera arranged at a real viewpoint. A texture noise power is based on the acquired texture images and reconstructed texture images corresponding to a virtual texture image. A depth noise power is based on the depth images and reconstructed depth images corresponding to a virtual depth image. The quality of the virtual image is based on a combination of the texture noise power and the depth noise power, and the virtual image is rendered from the reconstructed texture images and the reconstructed depth images.

摘要翻译： 确定3D场景中的合成视点的虚拟图像的质量。 3D场景由纹理图像获取，并且每个纹理图像与由布置在实际视点上的相机获取的深度图像相关联。 纹理噪声功率基于所获取的纹理图像和对应于虚拟纹理图像的重建纹理图像。 深度噪声功率基于对应于虚拟深度图像的深度图像和重建的深度图像。 虚拟图像的质量基于纹理噪声功率和深度噪声功率的组合，并且从重建的纹理图像和重建的深度图像中渲染虚拟图像。

公开(公告)号：US08634606B2

公开(公告)日：2014-01-21

申请号：US12688089

申请日：2010-01-15

申请人： Shantanu Rane ,  Abhishek Nagar ,  Anthony Vetro

发明人： Shantanu Rane ,  Abhishek Nagar ,  Anthony Vetro

IPC分类号： G06K9/00

CPC分类号： G06K9/00067 ,  G06K9/38 ,  H04L9/3231

摘要： Embodiments of the invention disclose a system and a method for transforming a biometric of a user to a binary feature vector suitable for user authentication, comprising steps of: partitioning the biometric into a set of regions, wherein each region is a contiguous region confining a part of the biometric; determining, for each region, biometric parameters; applying, to each region, binary logical conditions to produce at least one bit of the binary feature vector, wherein the applying is performed by a processer; and outputting the binary feature vector.

摘要翻译： 本发明的实施例公开了一种用于将用户的生物特征变换成适合于用户认证的二进制特征向量的系统和方法，包括以下步骤：将所述生物特征划分为一组区域，其中每个区域是限制部分的连续区域 的生物识别 为每个区域确定生物特征参数; 向每个区域应用二进制逻辑条件以产生所述二进制特征向量的至少一个位，其中所述应用由处理器执行; 并输出二进制特征向量。

公开(公告)号：US20130201177A1

公开(公告)日：2013-08-08

申请号：US13366348

申请日：2012-02-05

申请人： Ngai-Man Cheung ,  Dong Tian ,  Anthony Vetro ,  Huifang Sun

发明人： Ngai-Man Cheung ,  Dong Tian ,  Anthony Vetro ,  Huifang Sun

IPC分类号： G06T15/00

CPC分类号： G06T15/04 ,  G06T7/0002 ,  G06T15/20 ,  G06T2207/10012 ,  G06T2207/30168

摘要： A quality of a virtual image for a synthetic viewpoint in a 3D scene is determined. The 3D scene is acquired by texture images, and each texture image is associated with a depth image acquired by a camera arranged at a real viewpoint. A texture noise power is based on the acquired texture images and reconstructed texture images corresponding to a virtual texture image. A depth noise power is based on the depth images and reconstructed depth images corresponding to a virtual depth image. The quality of the virtual image is based on a combination of the texture noise power and the depth noise power, and the virtual image is rendered from the reconstructed texture images and the reconstructed depth images.

摘要翻译： 确定3D场景中的合成视点的虚拟图像的质量。 3D场景由纹理图像获取，并且每个纹理图像与由布置在实际视点上的相机获取的深度图像相关联。 纹理噪声功率基于所获取的纹理图像和对应于虚拟纹理图像的重建纹理图像。 深度噪声功率基于对应于虚拟深度图像的深度图像和重建的深度图像。 虚拟图像的质量基于纹理噪声功率和深度噪声功率的组合，并且从重建的纹理图像和重建的深度图像中渲染虚拟图像。

公开(公告)号：US08451895B2

公开(公告)日：2013-05-28

申请号：US12871249

申请日：2010-08-30

申请人： Anthony Vetro ,  Huifang Sun ,  Jun Xin ,  Emin Martinian ,  Alexander Behrens

发明人： Anthony Vetro ,  Huifang Sun ,  Jun Xin ,  Emin Martinian ,  Alexander Behrens

IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04

CPC分类号： H04N19/615 ,  H04N19/105 ,  H04N19/13 ,  H04N19/46 ,  H04N19/597 ,  H04N19/61 ,  H04N19/63

摘要： Multiview videos are acquired of a scene with corresponding cameras arranged at poses, such that there is view overlap between any pair of cameras. V-frames are generated from the multiview videos. The V-frames are encoded using only spatial prediction. Then, the V-frames are inserted periodically in an encoded bit stream to provide random temporal access to the multiview videos. Additional view dependency information enables the decoding of a reduced number of frames prior to accessing randomly a target frame for a specified view and time, and decoding the target frame. The method also decodes multiview videos by maintaining a reference picture list for a current frame of a plurality of multiview videos, and predicting each current frame of the plurality of multiview videos according to reference pictures indexed by the associated reference picture list.

摘要翻译： 多视点视频被采集到具有以姿势布置的相应摄像机的场景，使得在任何一对摄像机之间存在视图重叠。 V帧是从多视角视频生成的。 V帧仅使用空间预测编码。 然后，将V帧周期性地插入到编码比特流中，以便为多视点视频提供随机的时间访问。 附加的视图依赖性信息使得能够在对指定的视图和时间的随机访问目标帧之前对减少数量的帧进行解码，以及对目标帧进行解码。 该方法还通过维护多个多视角视频的当前帧的参考图片列表，并根据由相关参考图片列表索引的参考图片来预测多个多视角视频中的每个当前帧来对多视点视频进行解码。

公开(公告)号：US08427509B2

公开(公告)日：2013-04-23

申请号：US12347277

申请日：2008-12-31

申请人： Shantanu Rane ,  Ronald N. Perry ,  Anthony Vetro

发明人： Shantanu Rane ,  Ronald N. Perry ,  Anthony Vetro

IPC分类号： G09G5/00

CPC分类号： H04N1/32203 ,  G09G2358/00 ,  H04N1/32208 ,  H04N1/32261

摘要： A method embeds a message into a document containing a set of glyphs. Individual glyphs in the document, groups of glyphs in the document, or the entire document are represented using a distance field that includes distance values from the shapes of interest. Each symbol of the message is represented as modifications of a subset of the distance values in the distance field. This subset of the distance values in the distance field is modified according to modification to produce a modified glyph in a modified document, wherein the symbol in the message is embedded in the modified glyph.

摘要翻译： 一种方法将消息嵌入到包含一组字形的文档中。 文档中的单个字形，文档中的字形组或整个文档使用包括来自感兴趣的形状的距离值的距离字段来表示。 消息的每个符号被表示为距离字段中的距离值的子集的修改。 根据修改修改距离字段中的距离值的该子集，以在经修改的文档中产生经修改的字形，其中消息中的符号嵌入在修改的字形中。

公开(公告)号：US20120206451A1

公开(公告)日：2012-08-16

申请号：US13406139

申请日：2012-02-27

申请人： Dong Tian ,  Yongzhe Wang ,  Anthony Vetro

发明人： Dong Tian ,  Yongzhe Wang ,  Anthony Vetro

IPC分类号： G06T17/30

CPC分类号： G06T15/205

摘要： An image for a virtual view of a scene is generated based on a set of texture images and a corresponding set of depth images acquired of the scene. A set of candidate depths associated with each pixel of a selected image is determined. For each candidate depth, a cost that estimates a synthesis quality of the virtual image is determined. The candidate depth with a least cost is selected to produce an optimal depth for the pixel. Then, the virtual image is synthesized based on the optimal depth of each pixel and the texture images. The method also applies first and second depth enhancement before, and during view synthesis to correct errors or suppress noise due to the estimation or acquisition of the dense depth images and sparse depth features.

摘要翻译： 基于一组纹理图像和从该场景获取的对应的一组深度图像来生成用于场景的虚拟视图的图像。 确定与所选图像的每个像素相关联的一组候选深度。 对于每个候选深度，确定估计虚拟图像的合成质量的成本。 选择具有最低成本的候选深度以产生像素的最佳深度。 然后，基于每个像素的最佳深度和纹理图像合成虚拟图像。 该方法还在视图合成之前和视图合成期间都应用第一和第二深度增强，以校正误差或抑制由于估计或获取密集深度图像和稀疏深度特征而导致的噪声。

公开(公告)号：US20120206442A1

公开(公告)日：2012-08-16

申请号：US13307936

申请日：2011-11-30

申请人： Dong Tian ,  Yongzhe Wang ,  Anthony Vetro

发明人： Dong Tian ,  Yongzhe Wang ,  Anthony Vetro

IPC分类号： G06T15/00

CPC分类号： G06T15/205 ,  G06T15/503 ,  H04N13/111

摘要： An image for a virtual view of a scene is generated based on a set of texture images and a corresponding set of depth images acquired of the scene. A set of candidate depth values associated with each pixel of a selected image is determined. For each candidate depth value, a cost that estimates a synthesis quality of the virtual image is determined. The candidate depth value with a least cost is selected to produce an optimal depth value for the pixel. Then, the virtual image is synthesized based on the optimal depth value of each pixel and the texture images.

公开(公告)号：US20120140829A1

公开(公告)日：2012-06-07

申请号：US12960974

申请日：2010-12-06

申请人： Shantanu Rane ,  Yige Wang ,  Petros T. Boufounos ,  Anthony Vetro

发明人： Shantanu Rane ,  Yige Wang ,  Petros T. Boufounos ,  Anthony Vetro

IPC分类号： H04N7/30

CPC分类号： H04N19/395 ,  H04N19/48 ,  H04N19/50

摘要： An encoded signal is decoded based on statistical dependencies between the encoded signal and the side information. A statistical reliability of each transform block of the side information is determined as a function of absolute values of transform coefficients of a transform block. The transform blocks of the side information are grouped into a set of groups based on the statistical reliability of each transform block. The decoding is performed using a statistical dependency between a transform block of the encoded signal and a group including a corresponding transform block of the side information.

摘要翻译： 编码信号根据编码信号与侧信息之间的统计依赖关系进行解码。 侧信息的每个变换块的统计可靠性被确定为变换块的变换系数的绝对值的函数。 基于每个变换块的统计可靠性，侧信息的变换块被分组成一组组。 使用编码信号的变换块和包括副信息的相应变换块的组之间的统计依赖性来执行解码。

公开(公告)号：US08189943B2

公开(公告)日：2012-05-29

申请号：US12405884

申请日：2009-03-17

申请人： Sehoon Yea ,  Kwan-Jun Oh ,  Anthony Vetro

发明人： Sehoon Yea ,  Kwan-Jun Oh ,  Anthony Vetro

IPC分类号： G06K9/42

CPC分类号： G06T3/40 ,  G06T5/005 ,  G06T2207/10016 ,  G06T2207/10028 ,  G06T2207/20028 ,  G06T2207/20036 ,  H04N13/10

摘要： A method up-samples images in a reduced resolution video, wherein each image I(x, y) stores depths d at pixel locations (x, y). each depth image is scaled up to produce a corresponding up-scaled image. Then, image dilation, a median filter, image erosion, and a min-max filter are applied in order to produce a corresponding up-sampled image.

摘要翻译： 一种方法以降低分辨率的视频对图像进行上采样，其中每个图像I（x，y）存储像素位置（x，y）处的深度d。 每个深度图像被放大以产生相应的升幅图像。 然后，应用图像扩张，中值滤波，图像侵蚀和最小 - 最大滤波器，以产生相应的上采样图像。

公开(公告)号：US20110135096A1

公开(公告)日：2011-06-09

申请号：US12631974

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： H04L9/30 ,  H04L9/08

CPC分类号： H04L9/3093 ,  H04L9/008

摘要： A system and a method for determining a result of applying a function to signals is disclosed. The function is a polynomial function including monomials, in which the first signal in a first power forming a first part of the monomial and the second signal in a second power forming a second part of the monomial, wherein the first part of the monomial encrypted with a key is a first encrypted signal, and the second part of the monomial encrypted with the key is a second encrypted signal, comprising the steps of transmitting a first input signal encrypted with a second public key to the second processor, wherein the first input signal includes the first encrypted signal, transmitting a second input signal encrypted with a first public key to the first processor, wherein the second input signal includes a product of the first encrypted signal and the second encrypted signal.

摘要翻译： 公开了一种用于确定将功能应用于信号的结果的系统和方法。 该函数是包括单项式的多项式函数，其中形成单项式的第一部分的第一功率中的第一信号和形成单项式的第二部分的第二功率中的第二信号，其中单项的第一部分用 密钥是第一加密信号，并且用密钥加密的单项项的第二部分是第二加密信号，包括以下步骤：向第二处理器发送用第二公钥加密的第一输入信号，其中第一输入信号 将第一加密信号包括在第一处理器中传送用第一公开密钥加密的第二输入信号，其中第二输入信号包括第一加密信号和第二加密信号的乘积。