跟踪

Based on the upper limb being supposed as a rigid body and the joints being simplified, the relationship between the acromion and the center of the shoulder was measured by the positions of markers which was gotten by electromagnetic tracking system or three-dimensional measurement system based on general cameras.

在对人体上肢进行必要的简化和刚体假设的前提下，用电磁跟踪系统或三维摄像系统跟踪附着于肩峰和上臂上标记点的位置，根据本研究方法便可得到肩峰和肩关节中心的位置关系。

Following the change of rotation,scale,will lead to the distortion of the template,which can keep optimizing affine sport parameter during tracking,so the steady tracking can be realized.

在跟踪过程中，随着目标的旋转、尺度等仿射变化，小波特征模板随之变形，优化了目标的仿射运动参数，实现了对目标的稳定跟踪。

This paper research some problem of the tracked mobile robot' s path planning and tracking. There are some points as follows: 1 Introduce the airmanship technology and presently research situation in path planning and path tracking of the mobile robot, introduce the robot' s sensor system, analyze kinematics character of the tracked mobile robot.

本文就履带式移动机器人路径规划和路径跟踪的一些问题开展了如下工作： 1、介绍了移动机器人的导航技术和目前路径规划和路径跟踪的研究状况，介绍了机器人的传感器系统，并分析了履带式移动机器人的运动学特征。

In the area of face detection, there is knowledge based method, feature based method and model matched method, in which we mainly introduce the Adoboost algorism and ASM algorism.

首先对人脸检测和跟踪技术进行综述，在此基础上，介绍了多种人脸检测和跟踪的方法，比较了它们的优缺点。

When it is impossible to eliminate tracking error completely, performance weighting function is selected to guarantee small tracking error which is allowable in project. This choice method of parameter is very simple.

在完全跟踪不可能实现的情况下，讨论性能权重函数的选取，保证了跟踪误差收敛于实际工程容许的范围内，且参数选择非常简单。

The system adopted active tracking, namely calculate the input angle of the tracking device in advance, the angle is correspondent to the sun position some moment.

即预先计算好对应于某时刻太阳位置的跟踪机构的输入角度，通过跟踪器上平台

So it can track the target with robustness. The proposed method is based on particle filter, integrated with color histogram in the measurement model, and the system model is a second-order autoregressive process. The tracked target can be rigid or non-rigid.

这种方法是把颜色直方图结合到粒子滤波的观测模型中，应用二阶自回归模型作为系统模型，跟踪的目标既可以是刚性目标，也可以是非刚性目标，并且跟踪算法可以实时实现。

The desired signal in the auxiliary antennas may cause angle measurement error by using adaptive sidelobe cancellation in tracking radar. If not effectively encountered, it prevents successful radar target tracking.

跟踪雷达应用自适应旁瓣对消时辅助天线中的期望信号会引起测角误差，若不采取应对措施，雷达无法对目标进行有效跟踪。

The experimental simulation results show that the average tracking error of the proposed algorithm is reduced by 50% as compared with that of single target tracking method.

实验仿真结果表明，与单一的目标跟踪算法相比，本文算法的平均跟踪误差减小了一倍以上。

Combined with the Foundation Research (Avigation science fund 04D52032)"study on CFAR detecting expert system base on clutter tracking".This paper study the fractal technic and snake algorithm on the application of clutter tracking.

本课题结合航空科学基金"基于杂波跟踪融合的恒虚警检测专家系统研究"，研究分形技术和snake算法在杂波跟踪中应用，设计了相应的算法，通过分析真实数据和仿真数据验证了算法的有效性。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。