提出用离散曲率法提取特征点，曲率表达式包含了高斯核函数曲线，选用了合适的离散尺度因子。
The discrete curvature arithmetic was used to extract feature points, which the curvature expression contains Gaussian nuclear function and chooses appropriate discrete scale factor.
在特征集的基础上，讨论了其参数导数的构成情况，用有限个点和函数表示了无穷个参数导数的情形。
Based on characteristic set, the case of infinity parameters is described by using of finite value and functions.
采用优先权控制函数控制模型特征，且可以实现点和边的同步处理。
In order to control the model features in the process of metamorphosis, the priority control function is used to handle both vertex and edge at the same time.
证明了当特征值，特征函数及控制支撑点满足某些条件时系统的整体近似能控与有限维精确能控性。
This system is globally approximately controllable and finite-dimensional exactly controllable when the eigenvalues, eigenfunctions and the points which support the controls satisfy some assumptions.
该方法取运动角点为特征量，通过选择灰度相关函数为特征匹配函数，实现了车辆在一定帧差内移动距离的测量。
Motion corner points are chosen to form a feature vector, and the image intensity is used as a feature matching function to measure inter-frame movement of the vehicle.
该方法取运动角点为特征量，通过选择灰度相关函数为特征匹配函数，实现了车辆在一定帧差内移动距离的测量。
Motion corner points are chosen to form a feature vector, and the image intensity is used as a feature matching function to measure inter-frame movement of the vehicle.
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