利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

53 条记录 (耗时 0.022 秒)

    Three-dimensional urban modeling apparatus and method
    21.
    发明授权
    Three-dimensional urban modeling apparatus and method 有权
    三维城市建模装置及方法

    公开(公告)号：US08963943B2

    公开(公告)日：2015-02-24

    申请号：US12971162

    申请日：2010-12-17

    申请人： Chang-Woo Chu ,  Ho-Won Kim ,  Bon-Ki Koo

    发明人： Chang-Woo Chu ,  Ho-Won Kim ,  Bon-Ki Koo

    IPC分类号： G09G5/00 ,  G06T17/05 ,  G06T15/04

    CPC分类号： G06T17/05 ,  G06T15/04

    摘要： Disclosed herein is a 3D urban modeling apparatus and method. The 3D urban modeling apparatus includes a calibration unit for calibrating data about a translation and a rotation of at least one capturing device at a time that input aerial images and terrestrial images were captured. A building model generation unit generates at least one 3D building model based on the aerial images and the terrestrial images to which results of the calibration have been applied. A terrain model generation unit generates a 3D terrain model by converting an input digital elevation model into a 3D mesh. A texture extraction unit extracts textures related to the building model and the terrain model from the aerial images and the terrestrial images. A model matching unit generates a 3D urban model by matching the building model with the terrain model, which are based on the textures, with each other.

    摘要翻译： 本文公开了一种3D城市建模装置和方法。 3D城市建模装置包括校准单元，用于在输入空间图像和地面图像的时间校准关于平移的数据和至少一个捕获装置的旋转。 建筑模型生成单元基于空间图像和已经应用校准结果的地面图像生成至少一个3D建筑模型。 地形模型生成单元通过将输入数字高程模型转换为3D网格来生成3D地形模型。 纹理提取单元从空中图像和地面图像中提取与建筑模型和地形模型相关的纹理。 模型匹配单元通过将构建模型与基于纹理的地形模型相互匹配来生成3D城市模型。

    Apparatus and method for estimating focal length of camera
    23.
    发明授权
    Apparatus and method for estimating focal length of camera 有权
    用于估计摄像机焦距的装置和方法

    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。

    METHOD AND APPARATUS FOR CAPTURING MOTION OF DYNAMIC OBJECT
    24.
    发明申请
    METHOD AND APPARATUS FOR CAPTURING MOTION OF DYNAMIC OBJECT 失效
    用于捕获动态对象运动的方法和装置

    公开(公告)号：US20110148875A1

    公开(公告)日：2011-06-23

    申请号：US12970561

    申请日：2010-12-16

    申请人： Ho-Won KIM ,  Seong-Jae Lim ,  Han-Byul Joo ,  Hyun Kang ,  Bon-Ki Koo ,  Chang-Woo Chu

    发明人： Ho-Won KIM ,  Seong-Jae Lim ,  Han-Byul Joo ,  Hyun Kang ,  Bon-Ki Koo ,  Chang-Woo Chu

    IPC分类号： G06T17/00

    CPC分类号： G06T13/40

    摘要： The present invention relates to a method and apparatus for capturing a motion of a dynamic object, and restore appearance information of an object making a dynamic motion and motion information of main joints from multi-viewpoint video images of motion information of a dynamic object such as a human body, making a motion through a motion of a skeletal structure on the basis of the skeletal structure, acquired by using multiple cameras. According to the exemplary embodiments of the present invention, it is possible to restore motion information of the object making a dynamic motion by using only an image sensor for a visible light range and to reproduce a multi-viewpoint image by effectively storing the restored information. Further, it is possible to restore motion information of the dynamic object without attaching a specific marker.

    摘要翻译： 本发明涉及一种用于捕获动态对象的运动的方法和装置，并且从动态对象的运动信息的多视点视频图像恢复进行主关节的动态运动和运动信息的外观信息，例如 通过使用多个摄像机获取的基于骨骼结构的骨骼结构的运动进行运动。 根据本发明的示例性实施例，可以通过仅使用用于可见光范围的图像传感器来恢复进行动态运动的对象的运动信息，并且通过有效地存储恢复的信息来再现多视点图像。 此外，可以在不附加特定标记的情况下恢复动态对象的运动信息。

    METHOD FOR AUTOMATIC RIGGING AND SHAPE SURFACE TRANSFER OF 3D STANDARD MESH MODEL BASED ON MUSCLE AND NURBS BY USING PARAMETRIC CONTROL
    25.
    发明申请
    METHOD FOR AUTOMATIC RIGGING AND SHAPE SURFACE TRANSFER OF 3D STANDARD MESH MODEL BASED ON MUSCLE AND NURBS BY USING PARAMETRIC CONTROL 有权
    使用参数控制的基于手势和NURBS的3D标准网格模型的自动索引和形状表面传递方法

    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。

    APPARATUS AND METHOD FOR SEPARATING FOREGROUND AND BACKGROUND
    28.
    发明申请
    APPARATUS AND METHOD FOR SEPARATING FOREGROUND AND BACKGROUND 有权
    用于分离前置和背景的装置和方法

    公开(公告)号：US20100158372A1

    公开(公告)日：2010-06-24

    申请号：US12535877

    申请日：2009-08-05

    申请人： Kap Kee KIM ,  Bon Woo Hwang ,  Ji Hyung Lee ,  Jin Seo Kim ,  Seung Wook Lee ,  Chang Woo Chu ,  Ho Won Kim ,  Bon Ki Koo ,  Gil Haeng Lee

    发明人： Kap Kee KIM ,  Bon Woo Hwang ,  Ji Hyung Lee ,  Jin Seo Kim ,  Seung Wook Lee ,  Chang Woo Chu ,  Ho Won Kim ,  Bon Ki Koo ,  Gil Haeng Lee

    IPC分类号： G06K9/34

    CPC分类号： G06K9/38

    摘要： Disclosed herein is an apparatus and method for separating a foreground and a background. The apparatus includes a background model creation unit for creating a code book including a plurality of code words in order to separate the foreground and the background, and a foreground/background separation unit for separating the foreground and the background using the created code book. The method includes the steps of creating a code book including a plurality of code words in order to separate the foreground and the background, rearranging the cord words of the created code book on the basis of the number of sample data that belong to each of the code words, and separating the foreground and the background using the code book.

    摘要翻译： 本文公开了一种用于分离前景和背景的装置和方法。 该装置包括背景模型创建单元，用于创建包括多个代码字以便分离前景和背景的代码本，以及用于使用所创建的代码簿分离前景和背景的前景/背景分离单元。 该方法包括以下步骤：创建包括多个代码字的代码本以分离前景和背景，根据属于每个代码的样本数据的数量重新排列所创建的代码本的索词 代码字，并使用代码簿分离前景和背景。