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    • 1. 发明申请
    • LASER PROCESSING DEVICE
    • 激光加工设备
    • US20100288739A1
    • 2010-11-18
    • US12579755
    • 2009-10-15
    • Jae-Kwang LeeSung YiSoon-Gyu Yim
    • Jae-Kwang LeeSung YiSoon-Gyu Yim
    • B23K26/38
    • B23K26/032G01B9/02081G01B11/02H05K3/0035H05K2203/0207H05K2203/108H05K2203/163
    • Disclosed is a laser processing device, which includes a processing beam source configured to irradiate a processing laser towards an object, a measuring beam source configured to irradiate a modulated measuring laser, an irradiator configured to align a path of the measuring laser with a path of the processing laser directed towards the object, a beam receiver configured to receive the measuring laser reflected from the object, an I/Q demodulator configured to calculate a phase difference between the measuring laser irradiated from the measuring beam source and the measuring laser received at the beam receiver, and a data processor configured to calculate a processed length of the object by using the phase difference. The invention can be used to measure the length of a laser-processed portion at the same time as the laser processing itself, so that the laser processing may be performed with improved precision.
    • 公开了一种激光处理装置,其包括被配置为朝向物体照射处理激光的处理光束源,被配置为照射调制测量激光的测量光束源,配置成将测量激光的路径与 所述处理激光器被引导到所述物体,被配置为接收从所述物体反射的所述测量激光器的光束接收器; I / Q解调器,被配置为计算从所述测量光束源照射的所述测量激光器与在所述测量激光器处接收的所述测量激光器之间的相位差 以及数据处理器,被配置为通过使用所述相位差来计算所述对象的处理长度。 本发明可以用于与激光加工本身同时测量激光加工部分的长度,使得可以以更高的精度执行激光加工。
    • 10. 发明授权
    • Method for reconstructing three-dimensional structure using silhouette information in two-dimensional image
    • 使用二维图像中的轮廓信息重建三维结构的方法
    • US07760932B2
    • 2010-07-20
    • US11511732
    • 2006-08-29
    • Jae-Kwang LeeChang-Joon ParkIn-Ho LeeHyun-Bin Kim
    • Jae-Kwang LeeChang-Joon ParkIn-Ho LeeHyun-Bin Kim
    • G06K9/00G06T17/00
    • G06K9/20G06K2209/40
    • A method for reconstructing a three-dimensional structure using silhouette information on a two-dimensional plane is provided. The method includes: obtaining silhouette images; creating a cube on a three-dimensional space using the silhouette images; calculating vertex coordinates on a two-dimensional image plane by projecting eight vertices of the three-dimensional cube on a two-dimensional image plane of a first camera; dividing into multiple inner voxels by dividing sides formed by the eight vertices by a divider; dividing into a predetermined number of regions by dividing sides connecting the coordinates by a predetermined divider; assigning indices by matching cubes of the three-dimensional cube to square regions on the two-dimensional image plane in one to one manner; storing indices of regions where the square regions meets with a first silhouette image; and reconstructing three-dimensional structure by finding common indices through repeatedly performing the steps using other silhouette images.
    • 提供了使用二维平面上的轮廓信息来重建三维结构的方法。 该方法包括:获得剪影图像; 使用剪影图像在三维空间上创建立方体; 通过在第一相机的二维图像平面上投影三维立方体的八个顶点来计算二维图像平面上的顶点坐标; 通过将由八个顶点形成的边划分成分隔线,将其划分成多个内部体素; 通过将连接该坐标的一侧划分预定的分割器来划分为预定数量的区域; 通过将三维立方体的立方体与二维图像平面上的方形区域一一对应地分配索引; 存储所述正方形区域与第一轮廓图像相交的区域的索引; 并通过重复执行使用其他轮廓图像的步骤来找到共同的索引来重建三维结构。