first order motion 一阶运动
First-order motion perception 一阶运动知觉功能
first order error motion 一次误差运动
first-order and second-order motion signal 一阶运动和二阶运动信号
The steps are as follows: First, motion area is extracted based on high-order statistics detection method and motion information of multiple frames.
其基本思想是：首先根据多帧帧差信息，基于高阶统计检测方法提取运动区域。
The motion of plunger of oleo damper excited by colored Gaussian noise with exponential correlation time is governed by first order nonlinear differential equation.
油液阻尼器受指数型高斯色噪声外激励时，活塞在油腔内的运动可用一阶非线性动力学方程描述。
First, block higher order statistics and threshold via local maximal between-cluster variance are used to get the motion detection mask.
该算法首先利用分块高阶统计算法和基于最大类间方差的阈值算法得到目标的运动区域检测模板。
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