1·The centroid position of the focal spot directly depending on intensity distribution and phase slope distribution of near field is derived and its physical meaning is described.
进一步推导了焦斑质心位置对光束近场强度分布和相位斜率分布的依赖关系式，并对该式清晰的物理意义进行了阐述。
2·The influence of threshold selection on the centroid system errors and random errors is discussed.
首先给出了阈值选取对质心探测系统误差和随机误差的影响。
3·While impulse forces not acting on the centroid, the influence of accessional attack Angle oscillation amplitude, impulse force scale and function time interval on range correction was discussed.
针对非质心作用推力的情况，讨论了附加攻角振荡幅度、脉冲推力大小、作用时间间隔等因素对于修正距离的影响。
4·Aiming at this problem, this paper proposes an improved text categorization algorithm whose performance is higher than classical categorization algorithm based on centroid.
针对该问题提出一种改进的文本分类算法，与基于质心的经典分类算法相比，其性能较高。
5·Doppler centroid estimation is one of the most important steps in the DBS imaging of airborne pulse Doppler radars.
多普勒质心估计是机载脉冲多普勒雷达dbs成像技术中最为关键的步骤之一。
1·For example centroid analysis and to facilitate them to learn and use.
对于形心分析和算例，方便大家学习和使用。
2·However, the centroid tracking algorithm based on the image gray-mean segmentation fails when tracking small target images.
但是这种基于图像灰度均值分割的形心跟踪算法对于小目标图像都会跟踪失败。
3·This system detected motion target using difference image method through threshold image segmentation, then automatically tracked target by using centroid tracking algorithm.
该系统运用差分图像法，通过阈值图像分割来检测运动目标，并采用形心跟踪算法来自动跟踪目标。
4·In This paper, a normalized linear quadtree representation is obtained by normalizing an object with respect to its centroid and principal axes.
本文通过对图象中客体的形心和主轴进行正规化处理而得到其标准线性四元树表示方法。
5·Centroid tracking algorithm is widely used because of its simplicity and quick run speed.
形心跟踪算法因为简单、执行速度快而得到广泛采用。