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1. 发明申请

US20100166296A1 METHOD AND PROGRAM FOR EXTRACTING SILHOUETTE IMAGE AND METHOD AND PROGRAM FOR CONSTRUCTING THREE DIMENSIONAL MODEL 有权
标题翻译：提取硅胶图像的方法和程序以及构造三维模型的方法和程序
公开(公告)号：US20100166296A1
公开(公告)日：2010-07-01
申请号：US12630497
申请日：2009-12-03
申请人： Hiroshi SANKOH , Mehrdad PANAHPOUR TEHRANI , Sei NAITO
发明人： Hiroshi SANKOH , Mehrdad PANAHPOUR TEHRANI , Sei NAITO
IPC分类号： G06K9/00 , G06K9/46
CPC分类号： G06T7/12 , G06T7/136 , G06T7/174 , G06T17/10 , G06T2207/20036 , G06T2207/20224 , G06T2207/30196
摘要： A present invention provides a method and a program for extracting the high accuracy silhouette by relatively simple process not using manual labor or special photography environment. A method for extracting the high accuracy silhouette comprises: extracting a number of first silhouettes from a number of object images and a number of background images by a background subtraction; constructing first visual hull from a number of the first silhouettes by a shape from silhouette method; constructing second visual hull by process to repair missed parts and/or to remove unwanted regions in first visual hull; and extracting a number of second silhouettes from the second visual hull.
摘要翻译：本发明提供一种用于通过不使用体力劳动或特殊摄影环境的相对简单的过程来提取高精度轮廓的方法和程序。用于提取高精度轮廓的方法包括：通过背景减法从多个对象图像和多个背景图像中提取多个第一轮廓; 通过剪影方式从一些第一轮廓构建第一个视觉船体; 通过过程构建第二视觉船体以修复错过的部件和/或去除第一视觉船体中的不期望的区域; 以及从所述第二视觉外壳提取多个第二轮廓。

2. 发明授权

US08363941B2 Method and program for extracting silhouette image and method and program for constructing three dimensional model 有权
标题翻译：提取剪影图像的方法和程序，构建三维模型的方法和程序
公开(公告)号：US08363941B2
公开(公告)日：2013-01-29
申请号：US12630497
申请日：2009-12-03
申请人： Hiroshi Sankoh , Mehrdad Panahpour Tehrani , Sei Naito
发明人： Hiroshi Sankoh , Mehrdad Panahpour Tehrani , Sei Naito
IPC分类号： G06K9/34
CPC分类号： G06T7/12 , G06T7/136 , G06T7/174 , G06T17/10 , G06T2207/20036 , G06T2207/20224 , G06T2207/30196
摘要： A present invention provides a method and a program for extracting the high accuracy silhouette by relatively simple process not using manual labor or special photography environment. A method for extracting the high accuracy silhouette comprises: extracting a number of first silhouettes from a number of object images and a number of background images by a background subtraction; constructing first visual hull from a number of the first silhouettes by a shape from silhouette method; constructing second visual hull by process to repair missed parts and/or to remove unwanted regions in first visual hull; and extracting a number of second silhouettes from the second visual hull.
摘要翻译：本发明提供一种用于通过不使用体力劳动或特殊摄影环境的相对简单的过程来提取高精度轮廓的方法和程序。用于提取高精度轮廓的方法包括：通过背景减法从多个对象图像和多个背景图像中提取多个第一轮廓; 通过剪影方式从一些第一轮廓构建第一个视觉船体; 通过过程构建第二视觉船体以修复错过的部件和/或去除第一视觉船体中的不期望的区域; 以及从所述第二视觉外壳提取多个第二轮廓。

3. 发明授权

US08204316B2 Apparatus, method and computer program for classifying pixels in a motion picture as foreground or background 失效
标题翻译：用于将运动图像中的像素分类为前景或背景的装置，方法和计算机程序
公开(公告)号：US08204316B2
公开(公告)日：2012-06-19
申请号：US12240467
申请日：2008-09-29
申请人： Mehrdad Panahpour Tehrani , Akio Ishikawa , Shigeyuki Sakazawa
发明人： Mehrdad Panahpour Tehrani , Akio Ishikawa , Shigeyuki Sakazawa
IPC分类号： G06K9/34 , G06K9/62
CPC分类号： G06T7/277 , G06T2207/10016 , G06T2207/20021 , G06T2207/30232
摘要： The present invention relates to an apparatus and a method for classifying pixels in each frame of a motion picture as foreground or background. According to the invention, the apparatus has a decision unit and adjustment unit. The decision unit classifies a pixel as a foreground pixel, a background pixel or an undefined pixel based on a first threshold, a second threshold and a distribution value of the pixel representing an occurrence probability of a pixel value of the pixel. The decision unit sorts each pixel into a foreground pixel or a background pixel based on the classification result of the decision unit.
摘要翻译：本发明涉及一种用于将运动图像的每帧中的像素分类为前景或背景的装置和方法。根据本发明，该装置具有判定单元和调整单元。决定单元基于表示像素的像素值的出现概率的像素的第一阈值，第二阈值和分布值，将像素分类为前景像素，背景像素或未定义像素。决策单元根据决策单元的分类结果将每个像素分类成前景像素或背景像素。

4. 发明申请

US20090052776A1 COLOR CORRECTION APPARATUS, METHOD AND COMPUTER PROGRAM 有权
标题翻译：彩色校正装置，方法和计算机程序
公开(公告)号：US20090052776A1
公开(公告)日：2009-02-26
申请号：US12178335
申请日：2008-07-23
申请人： Mehrdad Panahpour Tehrani , Akio Ishikawa , Shigeyuki Sakazawa
发明人： Mehrdad Panahpour Tehrani , Akio Ishikawa , Shigeyuki Sakazawa
IPC分类号： G06K9/00
CPC分类号： H04N9/68 , H04N5/247
摘要： The present invention relates to color correction of video signals from a plurality of cameras. The apparatus has a correction order that defines a plurality of camera pairs and an order of the camera pairs, where each camera pair specifies a reference camera and a target camera. In the correction order, each camera is treated as a target camera at least one time, and the reference camera is treated as the target camera in a previous camera pair except for the first camera pair. The apparatus corrects a value of each pixel in a target image captured by the target camera based on a reference image captured by the reference camera, and replaces the target image by the corrected target image, for each camera pair in accordance with the order of the camera pairs.
摘要翻译：本发明涉及来自多个摄像机的视频信号的颜色校正。该装置具有定义多个相机对的校正顺序以及相机对的顺序，其中每个相机对指定参考相机和目标相机。在校正顺序中，将至少一次将每个摄像机视为目标摄像机，并且将参考摄像机视为除了第一摄像机对之外的先前摄像机对中的目标摄像机。该装置基于由参考相机拍摄的参考图像来校正由目标相机捕获的目标图像中的每个像素的值，并且根据所述相机的顺序，针对每个相机对，针对每个相机对替换目标图像。相机对。

5. 发明授权

US08811717B2 Image generating apparatus and computer program 有权
标题翻译：图像生成装置和计算机程序
公开(公告)号：US08811717B2
公开(公告)日：2014-08-19
申请号：US12491835
申请日：2009-06-25
申请人： Mehrdad Panahpour Tehrani , Akio Ishikawa , Shigeyuki Sakazawa
发明人： Mehrdad Panahpour Tehrani , Akio Ishikawa , Shigeyuki Sakazawa
IPC分类号： G06K9/00 , G06T7/00
CPC分类号： G06T7/0077 , G06T7/596 , G06T2207/10021
摘要： The present invention relate to an image generating apparatus for generating an image from a viewpoint specified by a user. According to the invention, the apparatus has a storage unit that stores data of a plurality of images, and a disparity map generating unit that generates a disparity map. The disparity map is associated with a pair of images including a first image and a second image, and indicates corresponding pixels in the first and second images.
摘要翻译：本发明涉及从用户指定的视点生成图像的图像生成装置。根据本发明，该装置具有存储多个图像的数据的存储单元和产生视差图的视差图生成单元。视差图与包括第一图像和第二图像的一对图像相关联，并且指示第一图像和第二图像中的相应像素。

6. 发明申请

US20120141016A1 VIRTUAL VIEWPOINT IMAGE SYNTHESIZING METHOD AND VIRTUAL VIEWPOINT IMAGE SYNTHESIZING SYSTEM 有权
标题翻译：虚拟视点图像合成方法和虚拟视点图像合成系统
公开(公告)号：US20120141016A1
公开(公告)日：2012-06-07
申请号：US13309979
申请日：2011-12-02
申请人： Meindert Onno WILDEBOER , Lu YANG , Mehrdad PANAHPOUR TEHRANI , Tomohiro YENDO , Masayuki TANIMOTO
发明人： Meindert Onno WILDEBOER , Lu YANG , Mehrdad PANAHPOUR TEHRANI , Tomohiro YENDO , Masayuki TANIMOTO
IPC分类号： G06K9/00
CPC分类号： H04N13/111 , H04N13/271
摘要： Provided is a virtual viewpoint image synthesizing method in which a virtual viewpoint image viewed from a virtual viewpoint is synthesized based on image information obtained from a plurality of viewpoints. The virtual viewpoint image is synthesized through a reference images obtaining step, a depth maps generating step, an up-sampling step, a virtual viewpoint information obtaining step, and a virtual viewpoint image synthesizing step.
摘要翻译：提供一种基于从多个视点获得的图像信息来合成从虚拟视点观看的虚拟视点图像的虚拟视点图像合成方法。通过参考图像获取步骤，深度图生成步骤，上采样步骤，虚拟视点信息获取步骤和虚拟视点图像合成步骤来合成虚拟视点图像。

7. 发明申请

US20100254627A1 IMAGE PROCESSING APPARATUS AND C0MPUTER PROGRAM 有权
标题翻译：图像处理设备和计算机程序
公开(公告)号：US20100254627A1
公开(公告)日：2010-10-07
申请号：US12718710
申请日：2010-03-05
申请人： Mehrdad Panahpour Tehrani , Akio Ishikawa
发明人： Mehrdad Panahpour Tehrani , Akio Ishikawa
IPC分类号： G06K9/36
CPC分类号： G06T15/205 , G06T2207/10012 , H04N13/111
摘要： The present invention relates to an image processing apparatus for compressing image data used in an image generating apparatus for generating a free-viewpoint image. According to the invention, the apparatus has a selecting unit that selects one image as a first image, and defines other images as second images, a projective transformation unit that generates a projected depth map of a second image from a depth map of the first image, a subtracting unit that creates a difference map of the second image, and a storage unit that stores the depth map of the first image and the difference map of the second image. Here, the difference map is a difference between a depth map of the second image and the projected depth map of the second image, and the depth map indicates a depth value of each pixel of a corresponding image.
摘要翻译：本发明涉及一种图像处理装置，用于压缩在用于产生自由视点图像的图像生成装置中使用的图像数据。根据本发明，该装置具有选择单元，其选择一个图像作为第一图像，并将其它图像定义为第二图像;投影变换单元，从第一图像的深度图生成第二图像的投影深度图，创建第二图像的差分图的减法单元和存储第一图像的深度图和第二图像的差分图的存储单元。这里，差分图是第二图像的深度图与第二图像的投影深度图之间的差，深度图表示对应图像的每个像素的深度值。

8. 发明申请

US20090110299A1 APPARATUS, METHOD AND COMPUTER PROGRAM FOR CLASSIFYING PIXELS IN A MOTION PICTURE AS FOREGROUND OR BACKGROUND 失效
标题翻译：用于在运动图像中分类像素的装置，方法和计算机程序
公开(公告)号：US20090110299A1
公开(公告)日：2009-04-30
申请号：US12240467
申请日：2008-09-29
申请人： Mehrdad PANAHPOUR TEHRANI , Akio ISHIKAWA , Shigeyuki SAKAZAWA
发明人： Mehrdad PANAHPOUR TEHRANI , Akio ISHIKAWA , Shigeyuki SAKAZAWA
IPC分类号： G06K9/62
CPC分类号： G06T7/277 , G06T2207/10016 , G06T2207/20021 , G06T2207/30232
摘要： The present invention relates to an apparatus and a method for classifying pixels in each frame of a motion picture as foreground or background. According to the invention, the apparatus has a decision unit and adjustment unit. The decision unit classifies a pixel as a foreground pixel, a background pixel or an undefined pixel based on a first threshold, a second threshold and a distribution value of the pixel representing an occurrence probability of a pixel value of the pixel. The decision unit sorts each pixel into a foreground pixel or a background pixel based on the classification result of the decision unit.
摘要翻译：本发明涉及一种用于将运动图像的每帧中的像素分类为前景或背景的装置和方法。根据本发明，该装置具有判定单元和调整单元。决定单元基于表示像素的像素值的出现概率的像素的第一阈值，第二阈值和分布值，将像素分类为前景像素，背景像素或未定义像素。决策单元根据决策单元的分类结果将每个像素分类成前景像素或背景像素。

9. 发明授权

US08687000B2 Image generating apparatus and computer program 失效
标题翻译：图像生成装置和计算机程序
公开(公告)号：US08687000B2
公开(公告)日：2014-04-01
申请号：US12718431
申请日：2010-03-05
申请人： Mehrdad Panahpour Tehrani , Akio Ishikawa
发明人： Mehrdad Panahpour Tehrani , Akio Ishikawa
IPC分类号： G06T15/00 , G06T15/40 , G09G5/00 , G06K9/00 , H04N13/00 , H04N13/02
CPC分类号： G06T15/405 , G06T15/005
摘要： The present invention relates to an image generating apparatus for generating an image from a viewpoint specified by a user. According to the invention, the apparatus has a storage unit that stores a plurality of pre-images from viewpoints on predetermined lines and depth maps indicating a depth value of each pixel of a corresponding pre-image, and an image generating unit that generates a first image from a first viewpoint based on the pre-images and depth maps.
摘要翻译：本发明涉及从用户指定的视点生成图像的图像生成装置。根据本发明，该装置具有存储单元，该存储单元从预定行上的视点存储多个预图像，并且指示相应预图像的每个像素的深度值的深度图以及生成第一图像的图像生成单元基于前图像和深度图从第一视点的图像。

10. 发明授权

US08164633B2 Calibration apparatus and method for imaging devices and computer program 有权
标题翻译：用于成像装置和计算机程序的校准装置和方法
公开(公告)号：US08164633B2
公开(公告)日：2012-04-24
申请号：US12350621
申请日：2009-01-08
申请人： Mehrdad Panahpour Tehrani , Akio Ishikawa , Shigeyuki Sakazawa
发明人： Mehrdad Panahpour Tehrani , Akio Ishikawa , Shigeyuki Sakazawa
IPC分类号： H04N17/00 , H04N17/02
CPC分类号： G06T7/80
摘要： The present invention relates to calibration of camera parameters for converting a world coordinate system, which indicates a position in the real space, to a coordinate used in an image and vice versa. The apparatus according to the invention has a detection unit, which determines corresponding pixel pairs from the captured image and the model image and outputs corresponding data indicating determined pixel pairs, and a selection unit, which selects pixel pairs to be left in the corresponding data and removes data related to an unselected pixel pair from the corresponding data for generating selected corresponding data. The apparatus further has a calculation unit, which calculates camera parameters based on the selected corresponding data.
摘要翻译：本发明涉及用于将指示真实空间中的位置的世界坐标系转换为图像中使用的坐标的相机参数的校准，反之亦然。根据本发明的装置具有检测单元，该检测单元从捕获的图像和模型图像确定相应的像素对，并输出指示确定的像素对的对应数据，以及选择单元，其选择要留在相应数据中的像素对，以及从相应的数据移除与未选择的像素对有关的数据，以产生所选择的相应数据。该装置还具有计算单元，其基于所选择的相应数据来计算摄像机参数。

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