公开(公告)号：US08238648B2

公开(公告)日：2012-08-07

申请号：US11945759

申请日：2007-11-27

申请人： Jae Chul Kim ,  Chang Woo Chu ,  Ho Won Kim ,  Jeung Chul Park ,  Ji Young Park ,  Seong Jae Lim ,  Bon Ki Koo

发明人： Jae Chul Kim ,  Chang Woo Chu ,  Ho Won Kim ,  Jeung Chul Park ,  Ji Young Park ,  Seong Jae Lim ,  Bon Ki Koo

IPC分类号： G06K9/00

CPC分类号： G03B17/18 ,  G03B35/00 ,  G06T7/80 ,  H04N13/246

摘要： Provided is a camera self-calibration method that calculates a focal length of a fixed zoom lens camera from a correspondence point position between images. In the method, a cost function, which is a function of a focal length, is defined, and a focal length that minimizes the defined cost function is obtained to obtain a focal length that allows 3D recovery results of correspondence points calculated from all image pairs coincide with one another. Therefore, reliability of the calculated focal length can be easily verified, and the focal length of the camera can be stably calculated even when the position of input correspondence point is inaccurately given.

摘要翻译： 提供了一种从图像之间的对应点位置计算固定变焦镜头相机的焦距的照相机自校准方法。 在该方法中，定义作为焦距的函数的成本函数，并且获得使定义的成本函数最小化的焦距，以获得允许从所有图像对计算的对应点的3D恢复结果的焦距 相互重合。 因此，即使在输入对应点的位置不准确的情况下，也可以容易地验证计算出的焦距的可靠性，并能够稳定地计算摄像机的焦距。

公开(公告)号：US20090153745A1

公开(公告)日：2009-06-18

申请号：US12334095

申请日：2008-12-12

申请人： Ji Young Park ,  Chang Woo Chu ,  Ho Won Kim ,  Seong Jae Lim ,  Jeung Chul Park ,  Bon Ki Koo

发明人： Ji Young Park ,  Chang Woo Chu ,  Ho Won Kim ,  Seong Jae Lim ,  Jeung Chul Park ,  Bon Ki Koo

IPC分类号： H04N9/68

CPC分类号： H04N17/02 ,  G06T7/80 ,  H04N13/133 ,  H04N13/239 ,  H04N13/243 ,  H04N13/246 ,  H04N13/25 ,  H04N13/257 ,  H04N17/002

摘要： A multi-view camera color calibration method using a color checker chart, includes measuring a brightness range of photographic data being input from multiple cameras; photographing the color checker chart for each camera and adjusting a brightness value of the chart to be within the brightness range of an input image of each camera; correcting brightness of each camera by using a gray patch of the checker chart; modeling a relationship between a color value of the checker chart obtained by each camera and a standard color value provided by the color checker chart; and correcting differences in color as a result of the modeling, to calibrate colors among the multiple cameras. Therefore, the three-dimensional information of a moving object for photography which cannot be photographed by moving only one camera is capable of being restored.

摘要翻译： 使用颜色检查图的多视点相机颜色校准方法包括测量从多个相机输入的照片数据的亮度范围; 拍摄每个相机的颜色检查图，并将图表的亮度值调整在每个相机的输入图像的亮度范围内; 通过使用格子图的灰色补丁校正每个相机的亮度; 建模由每个相机获得的检查图的颜色值与由颜色检查图提供的标准颜色值之间的关系; 并且通过建模来校正颜色差异，以校准多个相机之间的颜色。 因此，能够恢复不能通过仅移动一个照相机而拍摄的摄影用移动物体的三维信息。

公开(公告)号：US20090153673A1

公开(公告)日：2009-06-18

申请号：US12314855

申请日：2008-12-17

申请人： Chang Woo Chu ,  Seong Jae Lim ,  Ho Won Kim ,  Jeung Chul Park ,  Ji Young Park ,  Bon Ki Koo

发明人： Chang Woo Chu ,  Seong Jae Lim ,  Ho Won Kim ,  Jeung Chul Park ,  Ji Young Park ,  Bon Ki Koo

IPC分类号： H04N5/225 ,  G06T17/00

CPC分类号： G06T7/001 ,  G06T15/00

摘要： Disclosed is a technology for measuring a degree of accuracy of a 3D graphical model by using images. The technology includes creating camera parameters by calculating a position, a direction, and intrinsic parameters of a camera through a calibration of the camera to a reference image which is photographed for reference during creation of the 3D graphical model of an actually existing object; calculating a position and a direction of the 3D graphical model based on a corresponding relation between the reference image and 3D graphical model data obtained by digitizing the actually existing object; creating a synthesized image by rendering the 3D graphical model using the camera parameters; extracting characteristics of the reference image and the synthesized image; and calculating distance and length errors based on a corresponding relation between the extracted characteristics of the two images.

摘要翻译： 公开了一种通过使用图像来测量3D图形模型的精度的技术。 该技术包括通过将照相机的校准计算到相机的位置，方向和固有参数来创建相机参数，以参考图像，该参考图像在实际存在的对象的3D图形模型的创建期间被拍照以供参考; 基于通过数字化实际存在的对象获得的参考图像和3D图形模型数据之间的对应关系来计算3D图形模型的位置和方向; 通过使用相机参数渲染3D图形模型来创建合成图像; 提取参考图像和合成图像的特征; 并且基于提取的两个图像的特征之间的对应关系来计算距离和长度误差。

公开(公告)号：US20090153554A1

公开(公告)日：2009-06-18

申请号：US12314785

申请日：2008-12-16

申请人： Seong Jae Lim ,  Jeung Chul Park ,  Chang Woo Chu ,  Ho Won Kim ,  Ji Young Park ,  Bon Ki Koo

发明人： Seong Jae Lim ,  Jeung Chul Park ,  Chang Woo Chu ,  Ho Won Kim ,  Ji Young Park ,  Bon Ki Koo

IPC分类号： G06T15/70

CPC分类号： G06T13/40

摘要： A method for producing a 3D facial animation using a single facial video stream, includes producing a representative joint focused on a major expression producing element in a 3D standard facial model, producing a statistical feature-point model of various facial expressions of different people in the 3D standard facial model, moving each feature-point of the statistical feature-point model by tracking a change in facial expressions of the video stream, calculating a transformation coefficient of the representative joint corresponding to a variation of the feature-point of the 3D standard facial model, and producing a 3D facial animation by applying the calculated transformation coefficient to transform the representative joint.

摘要翻译： 一种用于使用单个面部视频流生成3D面部动画的方法，包括：在3D标准面部模型中产生聚焦在主要表现形成元素上的代表性关节，产生不同人物的各种面部表情的统计特征点模型 3D标准面部模型，通过跟踪视频流的面部表情的变化来移动统计特征点模型的每个特征点，计算与3D标准的特征点的变化相对应的代表关节的变换系数 面部模型，并通过应用计算的变换系数来转换代表性关节来产生3D面部动画。

公开(公告)号：US20090153553A1

公开(公告)日：2009-06-18

申请号：US12314676

申请日：2008-12-15

申请人： Ho Won Kim ,  Bon Ki Koo ,  Chang Woo Chu ,  Seong Jae Lim ,  Jeung Chul Park ,  Ji Young Park

发明人： Ho Won Kim ,  Bon Ki Koo ,  Chang Woo Chu ,  Seong Jae Lim ,  Jeung Chul Park ,  Ji Young Park

IPC分类号： G06T15/00

CPC分类号： G06T13/40 ,  G06T17/20

摘要： A method for creating a 3D face model by using multi-view image information, includes: creating a mesh structure for expressing an appearance of a 3D face model by using a first multi-view image obtained by capturing an expressionless face of a performer; and locating joints of a hierarchical structure in the mesh structure, by using a second multi-view image obtained by capturing an expression performance of the performer. Further, the method includes creating a 3D face model that is animated to enable reproduction of a natural expression of the performer, by setting dependency between the joints and the mesh structure.

摘要翻译： 一种通过使用多视点图像信息来创建3D人脸模型的方法，包括：通过使用通过捕获表演者的无表情脸部获得的第一多视角图像来创建用于表达3D面部模型的外观的网格结构; 以及通过使用通过捕获表演者的表情表现而获得的第二多视图图像，将网格结构中的分层结构的关节定位。 此外，该方法包括通过设置关节和网格结构之间的依赖关系来创建动画的3D面部模型以使再现执行者的自然表达。

公开(公告)号：US08610710B2

公开(公告)日：2013-12-17

申请号：US12970008

申请日：2010-12-16

申请人： Seong Jae Lim ,  Ho Won Kim ,  Han Byul Joo ,  Bon Ki Koo

发明人： Seong Jae Lim ,  Ho Won Kim ,  Han Byul Joo ,  Bon Ki Koo

IPC分类号： G06T15/00

CPC分类号： G06T13/40

摘要： Provided is a method for automatic rigging and shape surface transfer of a 3-D standard mesh model based on muscles and Nurbs by using parametric control. In some embodiments, the method includes: extracting a joint-skeleton structure from scan data of dynamic objects having a skeleton structure, or input 3-D mesh models, generating a muscle and an appearance surface based on anatomy information, and generating a standard mesh model that approximates the appearance of the dynamic objects by using the joint-skeleton structure and the generated muscle and appearance surface; and performing the shape surface transfer of the standard mesh model by comparing multi-view image information of the dynamic objects with projection image information of the standard mesh model.

摘要翻译： 提供了一种通过使用参数控制，基于肌肉和Nurbs的3-D标准网格模型的自动索具和形状表面传递的方法。 在一些实施例中，该方法包括：从具有骨架结构的动态对象的扫描数据或基于解剖信息生成肌肉和外观表面的输入3-D网格模型提取关节骨架结构，以及生成标准网格 通过使用关节骨架结构和产生的肌肉和外观表面近似动态对象的外观的模型; 并通过将动态对象的多视点图像信息与标准网格模型的投影图像信息进行比较来执行标准网格模型的形状表面传送。

公开(公告)号：US20110148865A1

公开(公告)日：2011-06-23

申请号：US12970008

申请日：2010-12-16

申请人： Seong Jae LIM ,  Ho Won Kim ,  Han Byul Joo ,  Bon Ki Koo

发明人： Seong Jae LIM ,  Ho Won Kim ,  Han Byul Joo ,  Bon Ki Koo

IPC分类号： G06T15/00

CPC分类号： G06T13/40

摘要： The present invention relates to a method for automatic rigging and shape surface transfer of a 3-D standard mesh model based on muscles and Nurbs by using parametric control. The method for automatic rigging and appearance surface transfer of 3-D standard mesh model based on muscle and Nurbs by using parametric control includes: extracting a joint-skeleton structure from scan data of dynamic objects having a skeleton structure, or input 3-D mesh models, generating a muscle and a appearance surface based on anatomy information, and generating a standard mesh model that approximates the appearance of the models by using the extracted joint-skeleton structure and the generated muscle and appearance surface; and performing the transfer of the standard mesh model by controlling the parameter so that the occupying error between the multi-view image information of the dynamic objects and the projection image information of the approximating standard mesh model is in the predetermined allowable error range.

摘要翻译： 本发明涉及一种通过使用参数控制，基于肌肉和Nurbs的3-D标准网格模型的自动索具和形状表面传递的方法。 通过使用参数控制，基于肌肉和Nurbs的3-D标准网格模型的自动索具和外观表面传递方法包括：从具有骨架结构的动态对象的扫描数据中提取关节骨架结构，或输入3-D网格 模型，基于解剖信息产生肌肉和外观表面，并且通过使用提取的关节骨架结构和产生的肌肉和外观表面来生成近似模型外观的标准网格模型; 并且通过控制参数来执行标准网格模型的传送，使得动态对象的多视图图像信息与近似标准网格模型的投影图像信息之间的占有误差在预定的可允许误差范围内。

公开(公告)号：US07847694B2

公开(公告)日：2010-12-07

申请号：US11484294

申请日：2006-07-10

申请人： Byung Gil Lee ,  Doo Ho Choi ,  Ho Won Kim ,  Kyo Il Chung

发明人： Byung Gil Lee ,  Doo Ho Choi ,  Ho Won Kim ,  Kyo Il Chung

IPC分类号： G08B13/14

CPC分类号： G07C9/00111 ,  G07C9/00103

摘要： An electronic tag including privacy level information, and a privacy protection apparatus and method using the electronic tag are provided. The privacy protection apparatus using an electronic tag includes: an information storing unit storing recognition information of an electronic tag and privacy information on the electronic tags; an information request/response processing unit receiving the recognition information of electronic tags and information on a user that requests information on the electronic tags through a predetermined communication network; a privacy policy managing unit determining whether the privacy information on the electronic tags corresponding to the recognition information of electronic tags is stored in the information storing unit; and an information disclosure determination processing unit, if it is determined that the privacy information on the electronic tags is stored in the information storing unit, comparing the information on the user and a predetermined standard for publishing the privacy information, determining how much of the privacy information on the electronic tags is provided to the user, and providing the determined privacy information to the user.

摘要翻译： 提供了包括隐私级别信息的电子标签，以及使用该电子标签的隐私保护装置和方法。 使用电子标签的隐私保护装置包括：信息存储单元，其存储电子标签的识别信息和关于电子标签的隐私信息; 信息请求/响应处理单元，其通过预定的通信网络接收电子标签的识别信息和关于电子标签的信息的用户的信息; 隐私策略管理单元确定与电子标签的识别信息相对应的电子标签的隐私信息是否存储在信息存储单元中; 以及信息公开确定处理单元，如果确定所述电子标签上的隐私信息被存储在所述信息存储单元中，则比较关于所述用户的信息和用于发布所述隐私信息的预定标准，确定所述隐私的多少 向用户提供关于电子标签的信息，并向用户提供所确定的隐私信息。

公开(公告)号：US20080129447A1

公开(公告)日：2008-06-05

申请号：US11893496

申请日：2007-08-16

申请人： Doo Ho Choi ,  Ju Han Kim ,  Ho Won Kim ,  Kyo Il Chung

发明人： Doo Ho Choi ,  Ju Han Kim ,  Ho Won Kim ,  Kyo Il Chung

IPC分类号： G08C17/02

CPC分类号： H04L63/04 ,  H04L63/083

摘要： An electronic tag for protecting privacy in RFID and a method of protecting privacy using the same are provided. Specifically, an RFID electronic tag capable of protecting privacy by authenticating an RFID reader and controlling access of the RFID reader to the RFID tag and a method of protecting privacy using the same are provided. The RFID electronic tag is applicable to a passive type RFID tag. The RFID electronic tag is also applicable to an ISO/IEC 18000-6 Type C tag that is a typical passive type RFID tag. It is possible to protect privacy of a user by controlling access of the RFID reader to the RFID tag and authenticating the RFID reader by modifying a tag inventory protocol and a memory map of the tag.

摘要翻译： 提供了一种用于保护RFID中的隐私的电子标签和使用其保护隐私的方法。 具体地，提供了能够通过认证RFID读取器并控制RFID读取器对RFID标签的访问来保护隐私的RFID电子标签和使用其进行隐私保护的方法。 RFID电子标签适用于无源型RFID标签。 RFID电子标签也适用于作为典型的无源型RFID标签的ISO / IEC 18000-6 C型标签。 通过控制RFID读取器对RFID标签的访问和通过修改标签库存协议和标签的存储器映射来认证RFID读取器，可以保护用户的隐私。

公开(公告)号：US20120066764A1

公开(公告)日：2012-03-15

申请号：US13319062

申请日：2010-01-20

申请人： Ho Won Kim

发明人： Ho Won Kim

IPC分类号： H04W12/08 ,  H04L9/00 ,  H04L9/08 ,  H04W12/04

CPC分类号： H04L63/101 ,  H04L63/1441

摘要： The present invention relates to a technique for solving security vulnerability of a ZigBee wireless communication protocol frequently used as a low-power wireless communication protocol in a home network, a sensor network, or the like, and an apparatus therefor. An ACL security hardware block having diverse security functions is proposed, and a safe and reliable ZigBee wireless communication protocol is provided by applying a method of effectively detecting a replay attack, a method of efficiently managing a group key, and a method of detecting transmission of the same nonce value in advance.

摘要翻译： 本发明涉及一种用于解决家庭网络，传感器网络等中频繁用作低功率无线通信协议的ZigBee无线通信协议的安全漏洞的技术及其装置。 提出了具有多种安全功能的ACL安全硬件块，通过应用有效检测重放攻击的方法，有效管理组密钥的方法和检测传输的方法，提供了安全可靠的ZigBee无线通信协议 提前同样的价值。