Apparatus and method of three-dimensional modeling
    1.
    发明授权
    Apparatus and method of three-dimensional modeling 失效
    三维建模的装置和方法

    公开(公告)号:US06363169B1

    公开(公告)日:2002-03-26

    申请号:US09120468

    申请日:1998-07-23

    IPC分类号: G06K928

    CPC分类号: G06T17/20 G06T7/80 G06T17/10

    摘要: A reference sheet is employed on which reference points are arranged irregularly and asymmetrically. An object of interest is placed on the reference sheet. The object of interest is shot together with the reference points by a camera. A shooting position of the camera is calculated according to the Hough transform method on the basis of the position of a reference point in the obtained object image. A three-dimensional model is generated according to the obtained object image and shooting position. Therefore, a simple and economic three-dimensional modeling apparatus that does not require a turntable can be provided.

    摘要翻译: 使用参考纸,其中参考点被布置不规则和不对称。 感兴趣的对象放在参考表上。 感兴趣的对象是通过相机与参考点一起拍摄的。 基于获取的对象图像中的参考点的位置,根据霍夫变换方法计算摄像机的拍摄位置。 根据获得的物体图像和拍摄位置生成三维模型。 因此,可以提供不需要转台的简单且经济的三维建模装置。

    Texture information assignment method, object extraction method, three-dimensional model generating method, and apparatus thereof

    公开(公告)号:US07106348B2

    公开(公告)日:2006-09-12

    申请号:US09994829

    申请日:2001-11-28

    IPC分类号: G09G5/00 G06K9/00 G06K9/20

    CPC分类号: G06T15/04 G06T15/10 G06T17/20

    摘要: The present method represents a three-dimensional shape model by polygons according to a plurality of object images information picked up by rotating a real object for every arbitrary angle to assign texture information on each polygon from object image information having the largest projection area of the relevant polygon. In order to improve the color continuity between adjacent polygons, the object image information having correspondence between a polygon of interest and an adjacent polygon thereof is selected so as to be the object image information approximating the shooting position and the shooting direction. An alternative method divides an object image into a plurality of regions, obtains difference between an object image and a background image in region level, outputs a mean value of the absolute value of difference in the region level, and detects the region having the mean value of absolute values of difference equal to or greater than a threshold value as the object portion. Another further method obtains a plurality of object images by shooting only a background of an object of interest and by shooting the object of interest during each rotation. A silhouette image is generated by carrying out a difference process between the object image and the background image. A voting process is carried out on the voxel space on the basis of the silhouette image. A polygon is generated according to the three-dimensional shape obtained by the voting process. The texture obtained from the object image is mapped to the polygon.

    Texture information giving method, object extracting method, three-dimensional model generating method and apparatus for the same
    5.
    发明授权
    Texture information giving method, object extracting method, three-dimensional model generating method and apparatus for the same 失效
    纹理信息赋予方法,对象提取方法,三维模型生成方法和装置

    公开(公告)号:US06356272B1

    公开(公告)日:2002-03-12

    申请号:US09254127

    申请日:1999-11-01

    IPC分类号: G06T1140

    CPC分类号: G06T15/04 G06T15/10 G06T17/20

    摘要: The present method represents a three-dimensional shape model by polygons according to a plurality of object images information picked up by rotating a real object for every arbitrary angle to assign texture information on each polygon from object image information having the largest projection area of the relevant polygon. In order to improve the color continuity between adjacent polygons, the object image information having correspondence between a polygon of interest and an adjacent polygon thereof is selected so as to be the object image information approximating the shooting position and the shooting direction. An alternative method divides an object image into a plurality of regions, obtains difference between an object image and a background image in region level, outputs a mean value of the absolute value of difference in the region level, and detects the region having the mean value of absolute values of difference equal to or greater than a threshold value as the object portion. Another further method obtains a plurality of object images by shooting only a background of an object of interest and by shooting the object of interest during each rotation. A silhouette image is generated by carrying out a difference process between the object image and the background image. A voting process is carried out on the voxel space on the basis of the silhouette image. A polygon is generated according to the three-dimensional shape obtained by the voting process. The texture obtained from the object image is mapped to the polygon.

    摘要翻译: 本方法根据通过旋转每个任意角度的真实对象而拾取的多个对象图像信息,通过多边形表示三维形状模型,以从具有相关的最大投影面积的对象图像信息分配每个多边形上的纹理信息 多边形 为了提高相邻多边形之间的颜色连续性,选择与感兴趣多边形及其相邻多边形之间具有对应关系的对象图像信息,以便成为近似拍摄位置和拍摄方向的对象图像信息。 一种替代方法将对象图像划分为多个区域,获得区域级别中的对象图像和背景图像之间的差异,输出区域级别的差异的绝对值的平均值,并检测具有平均值的区域 作为对象部分的等于或大于阈值的绝对值的绝对值。 另一种方法通过仅拍摄感兴趣对象的背景并且通过在每次旋转期间拍摄感兴趣的对象来获得多个对象图像。 通过执行对象图像和背景图像之间的差异处理来生成剪影图像。 在轮廓图像的基础上对体素空间进行投票处理。 根据通过投票处理获得的三维形状生成多边形。 从对象图像获得的纹理映射到多边形。

    3-d model providing device
    7.
    发明授权
    3-d model providing device 失效
    3-D型提供装置

    公开(公告)号:US06977651B1

    公开(公告)日:2005-12-20

    申请号:US09913270

    申请日:2000-02-18

    CPC分类号: G06T19/20 G05B2219/49008

    摘要: A three-dimensional model providing apparatus in which a customer can easily modify the input three-dimensional data. The apparatus comprises an input section (10) for inputting three-dimensional data, a server section (12) for managing the processes on the three-dimensional data from input to output, a providing section (14) for providing three-dimensional data, a communicating section for communicating the three-dimensional data between the input section, server section, and providing section, a receiving section (11) for receiving instruction contents from the customer, and a converting section (13) for modifying, processing, or converting the three-dimensional data according to the instruction contents.

    摘要翻译: 一种三维模型提供装置,其中客户可以容易地修改输入的三维数据。 该装置包括用于输入三维数据的输入部分(10),用于管理从输入到输出的三维数据处理的服务器部分(12),用于提供三维数据的提供部分(14) 用于在输入部分,服务器部分和提供部分之间传送三维数据的通信部分,用于从客户接收指令内容的接收部分(11)和用于修改,处理或转换的转换部分 根据指令内容的三维数据。

    Surface generation method from boundaries of stereo images
    8.
    发明授权
    Surface generation method from boundaries of stereo images 失效
    立体图像边界的表面生成方法

    公开(公告)号:US5202928A

    公开(公告)日:1993-04-13

    申请号:US601657

    申请日:1989-07-21

    摘要: An image processing method for matching edges detected in images of the same objects in a three-dimensional scene which are taken simultaneously by two or more image pick-up devices at different positions, in which the boundary segments on the edges are classified into apparently real segments, apparently imaginary segments or undefined segments, a planar surface is found for each boundary which has all apparently real segments and no apparently imaginary segment on it by using the information of the points of occlusion, the surface is regarded as the real surface in the case where there is only one surface which has no segment under it, so that surface information and the distance information at arbitrary points on the real surface are obtained.

    摘要翻译: 一种图像处理方法,用于将在两个或更多个图像拾取装置同时拍摄的三维场景中的相同对象的图像中检测到的边缘进行匹配,其中边缘上的边界段被分类为明显的真实 段,明显虚构的段或未定义的段,通过使用闭塞点的信息,为每个边界找到具有所有表面上真实段并且在其上没有明显虚拟段的平面,该表面被认为是 只有一个表面在其下面没有段的情况,从而获得表面信息和实际表面任意点处的距离信息。

    Dynamic image processing method and device and medium
    9.
    发明授权
    Dynamic image processing method and device and medium 失效
    动态图像处理方法及设备与介质

    公开(公告)号:US06993157B1

    公开(公告)日:2006-01-31

    申请号:US09719374

    申请日:2000-05-18

    IPC分类号: G06K9/00

    摘要: A motion image processing method and device for authenticating a user using a specific device, using motion information of an object. Time series monochrome images, obtained by photographing an object, using a camera, are input. An object is detected from an initial frame of the input time series images, using a basic shape characteristic, and a plurality of reference points to be tracked are automatically determined in the object. Then, corresponding points of the respective reference points are detected in an image frame other than the initial frame among the input time series images. Subsequently, motion information of a finger is calculated, based on the result of tracking the respective reference points and an assumption of limited motion in a 3D plane. Based on the calculated motion parameter, a solid object is subjected to coordinate conversion, and displayed if necessary. As a result of the tracking, a reference point in each frame is updated. Tracking, motion parameter calculation, and displaying are repeated with respect to subsequent frames.

    摘要翻译: 一种运动图像处理方法和装置,用于使用特定装置来认证用户,使用对象的运动信息。 输入使用相机拍摄物体获得的时间序列单色图像。 使用基本形状特征从输入时间序列图像的初始帧检测对象,并且在对象中自动确定要跟踪的多个参考点。 然后,在输入时间序列图像之中的除初始帧之外的图像帧中检测各个参考点的相应点。 随后,基于跟踪各个参考点的结果和3D平面中的有限运动的假设来计算手指的运动信息。 根据计算出的运动参数,对实体进行坐标转换,必要时进行显示。 作为跟踪的结果,每帧中的参考点被更新。 相对于后续帧重复跟踪,运动参数计算和显示。