他们的系统根据图像中的视觉编码来推导图像坐标到物体坐标的变换。
Their system induces the transformation between code coordinate system and image coordinate system with visual codes in the image.
假设物体和目标的世界坐标已知，那么广告牌技术将会是一个简单的几何操作。
Assuming that both the objects and target positions are known in world coordinates, then billboarding becomes a simple geometrical operation.
使用物体的局部，原始坐标。
如果物体通过几何变换而被放置在世界坐标系中，比如通过平移和旋转，那么视图跟踪他在世界坐标系中位置变换的轨迹可能会是一个艰难的工作。
If the object is positioned in the world through geometric transformations, such as translations and rotations, then keeping track of its position in world coordinates can be a hard task.
这种方法是利用参考基点的笛卡尔坐标和参考基矢量的笛卡尔分量描述物体的位置与姿态。
This kind of method describes the position and attitude of objects by utilizing Cartesian coordinates of reference base points and Cartesian components of reference base vector.
该算法是基于平面定标物体上，且只需一个坐标系统。
The method is based on the plane calibration object and need only one coordinate system.
每个输出图元是由输入的坐标数据和有关物体显示的一些信息来指定。
Each output primitive is specified with input coordinate data and other information about the way that the object is to be displayed.
本文叙述了物体应力状态坐标交换的矩阵模型及其应用。
The article gives a matrix model of coordinate transformations in the stress condition of objects and its applications.
新方法可以精确测量出水中被测物表面的三维坐标并计算出物体的几何尺寸，实验验证了该方法的有效性。
The proposed method can measure accurately three-dimensional coordinates of objects' surface in water, and calculate the geometrical size of the object.
这台设备用于空间测量，使用一个运动的测量探针获得物体表面某点的坐标。
This is a device that is used for dimensional measuring, that USES a moving measuring probe to obtain the coordinates of points on an object surface.
这里所探讨的方法要求你知道物体和目标的位置在世界坐标系中的坐标值。
The method presented in here requires that you know where the object is in world coordinates, as well as the targets position, also in world coordinates.
事实上这意味着物体在局部坐标空间绘制，并且物体的正面朝向z轴正方向。//译者注：z轴正方向垂直屏幕指向观察者。
In practice this means that the object is drawn in the local origin, and it is looking along the positive Z axis.
基于s - R分解原理的更新拖带坐标有限元法分析这类构件，有利于跟踪变形物体中各点的变化，保证单元的质量守恒。
Updated co-moving coordinate finite element based S-R decomposition theorem is convenient to track deformations of points in the deformed configures, to assure the mass equilibrium of element.
在球坐标激光跟踪测量系统中采用球坐标法可将空间运动物体的三维坐标求出。
Moving object coordinate measurement is performed using laser tracking measurement system (LTS) that is based on spherical coordinate method.
本文叙述了物体应力状态坐标交换的矩阵模型及其应用。该矩阵模型便于使用计算机技术。
The article gives a matrix model of coordinate transformations in the stress condition of objects and its applications. The matrix model is convenient to its applications in aid of computor.
为此，我认为使用飞机移动物体的坐标系统。
To that end, I thought that I'd use the plane's coordinate system to move the objects.
通过对像面上亮线像坐标的计算可以得到物体上一个剖面的高度数据，如果再加上一维扫描就可以得到三维面形分布。
The height of one section of the object surface can be obtained after computing the pixel coordinates of the light line, and the whole 3d shape can be got with a one-dimension scanning rig.
探讨了摄像机标定、激光平面标定、被测物体点三维坐标计算及多视角测量数据融合等关键技术。
Some key technologies are discussed such as video cameral calibrating, laser plane calibrating 3-D coordinate computing of measured object and data fusion of multiple view measurement.
采用了一种基于HSV模型，应用H参数特征值来识别特征物体并获得其质心点坐标的方法。
A HSV model based method which has been used for discerning feature objects and capturing the coordinate of their center using H-parameter Eigen value has been achieved.
在层去图象法测量系统中，由于诸多因素的影响，物体的空间坐标与截面图象坐标之间存在着复杂的非线性映射关系。
There is complex nonlinear mapping between the object space and image space due to many factors in cross-sectional imaging measurement system.
我们知道不能用绝对坐标来描述物体的位置，要描述物体的位置，必须把物体放置于特定的参考系中。
When we specify the position of an object, we cannot do so in absolute terms; we must always do so within the context of a specific reference frame.
本文介绍了一种提取物体特征的方法，它将物体的面积，周长，中心坐标一次求出。
This paper introduces a method of drawing out the feature of body. It extracts the area, the length and the center coordinate position of body at the same time.
这种系统利用计算机来处理数字化的视频信号，得出物体的三维空间坐标。
The system uses microcomputer to deal with digital video, and derives 3-dimensional spatial imformation of objects.
本文采用单摄像机与3-D示教器（由四个LED构成）组成的仿真三维视觉传感装置来完成空间坐标系中物体的空间位置和姿态的测量。
In this paper, a TV camera and a 3-D teaching device with four LEDs attached to measured Point on the object are employed to acquire the 3-D information of the measured point.
先找到物体包围盒的中心，找到物体最大和最小的X，Y，Z坐标，两个坐标中点就是物体包围盒的中心。
One way is to find the geometric center of the object by computing the object bounding box by finding the maximum and minimum X, Y and Z values, then computing the mid-point of the bounding box.
在嵌入阶段，我们指定了四个点来建立世界坐标系，以确保虚拟物体能够成功叠加到真实场景中的正确位置。
In the embedding step, four points are specified to build the world coordinate system so that the virtual objects are superimposed on the real scene images in the proper positions.
建立格网模型的效果表明，借助柱面坐标系统构造狄罗里三角形的方法可以作为三维物体表面三角形格网模型的一个重要的基本方法。
The effect of model indicates that the Delaney triangle method of constructing using cylindrical reference frame is an important basic method of constructing triangular grid model.
在层去图象法测量系统中，物体的空间坐标与截面图象坐标之间存在着复杂的非线性映射关系。
In cross sectional imaging measurement system, there is complex nonlinear mapping between the object space and image space.
结合摄像机标定结果和优化算法从二维图像坐标中计算目标物体的世界坐标。
The camera calibration result and optimization algorithm are used to calculate the object's world coordinate from image coordinate.
针对圆形物体中心位置的精确测定，提出了基于全站仪或光电测距仪的两种方法：坐标法和方向距离法。
Based on several comparative methods of surveying and fixing of curve, a new method of polar coordinate to calculating the demarcating data is put forward.
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