In feature extraction, a difference motion detection algorithm of adaptive background updating is proposed, which has a good robustness to the changing of background and illumination.
在特征提取方面，提出了一种自适应背景更新的差分运动检测算法，该算法在运动对象轨迹的检测中对背景的抖动和光照条件的变化具有较好的鲁棒性。
The most obvious difference is that for motion blur, the blur is only in one direction.
最明显的区别是运动模糊，模糊的仅仅是一个方向。
Geosphere, hydrosphere and atmosphere are fluids in motion; their main difference is their viscosity.
地圈，水圈和大气是流体；他们的主要差别是他们的黏性。
The drive train users two differentials, with one to produce forward and reverse motion and the other to produce a difference in speed between the two sides.
传动装置有两个差速器，一个用于产生向前和向后的运动，另一个在两侧形成速度差。
Perhaps the fur makes a difference, they say in a video intended for the 2010 aps Gallery of Fluid Motion.
他们在为2010年美国物理学会流体运动画廊而准备的视频中说，皮毛大概有差别。
Generating theory of digital tooth surface is a new machining theory. There is great difference in generating motion between digital tooth surface and continual one.
数字化齿面加工理论是一种新的齿轮加工理论，它和连续齿面展成加工运动有较大的差异。
This system has implemented intelligent motion detection by utilizing a algorithm of difference image based on an automatically-updating background model.
利用背景自动更新模型的背景减法，实现了智能运动检测功能，并进行异常情况告警和启动告警录像；
Motion object region is extracted from multi-frame images in image sequences by using similar difference method.
它采用类似差分的方法从图像序列的多帧图像中检测出运动目标区域。
The key techniques include disparity 'estimation, occlusion detection, disparity compensated difference coding and joint estimation of disparity and motion.
核心技术有视差估计、遮挡检测、立体残差图像编码、运动和视差的联合估计等。
If want to earn price difference from inside interest rate wave motion, can buy the national debt that commercial bank bar trades or exchange market national debt so.
假如想从利率波动中赚取差价，那么可以购买商业银行柜台交易的国债或交易所市场国债。
Meantime, there was significant difference between two groups for regional ventricular wall motion abnormal (VMA).
同时观察到心室壁节段运动异常(VMA)在两组间亦明显不同。
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。
Studying Brownian motion by the difference equation, We can find that the partial differential equation describing the Brownian particle motion is a diffusion equation in mathematical physics.
引入差分方程研究布朗运动，会发现极限情况下的布朗运动所遵循的偏微分方程就是数学物理方程中的扩散方程。
In the wide weaving machine, the difference of warp tension on two beams are reduced by using a differential gear train of let-off motion double beams (side by side).
在阔幅织机上，以周转轮系差速器作双轴送经的方法可以通过机构自动调节来缩小两织轴的经纱张力差异。
The solar equation table of the Dayan Calendar is a mathematical table of equally quartic difference, and it reflects Yi Xing's profound understanding about the solar motion.
《大衍历》日躔表是一份四次差分相等的数表，反映一行对太阳运动复杂性的深刻认识。
The vortex flow field is calculated with difference methods, and the motion characteristics and the bursting mechanism of the leading-edge separated vortices of delta wing are analyzed.
采用差分方法计算旋涡流场，进而分析三角翼上前缘分离涡的运动特点及其破碎机理。
The generalized force and generalized inertia coefficient may also be calculated by finite difference method, and so the actual motion of mechanisms subjected to known active forces may be analyzed.
用有限差分法还可求出机构的等效力（矩）和等效质量（转动惯量），从而可求解机构在已知外力作用下的真实运动。
Part of software the motion target detection method based on timing difference has been researched, the software design has been completed.
软件设计部分，针对运动目标的检测跟踪各种跟踪方法，详细研究并实现了基于时间差分的运动目标检测方法，完成了系统整体软件设计。
The finding shows that a notable difference on the ability of motion balance exists between students with hearing disability and normal students.
聋生同健听生在运动平衡方面存在显著差异；
The time history of drift motion of mooring buoy in regular wave and wave group is calculated. The relation between drift motion and wave height or difference of frequency is discussed.
计算了规则波和波群中系泊浮筒漂移运动的时间历程，讨论了其运动与波高、频差的关系。
The relationships in various directions between the function, the sum of absolute value of gray difference of image, and the motion blur direction are studied for the first time in this paper.
本文首次研究了在不同方向的图像灰度差的绝对值之和与图像运动模糊方向的关系。在此基础上，提出了几种运动模糊图像清晰度评价函数，并研究了它们的优缺点和适用范围。
The motion trend of growth curve of double s form shows difference because of different fruit growth quantity of different varieties and different last time of three growth periods.
“双s”型生长曲线因不同品种的果实生长量和三个生长期持续时间不同而波动趋势有差异。
With the problem of blurred image caused by object motion, traditional difference algorithm based on analyzing the model of moving image was generally adopted to recover the blurred images.
对于运动造成的图象模糊问题，传统方法是根据运动成像模型分析得出的差分算法进行恢复。
In the thesis, the algorithm of background subtracting, frame difference algorithm, motion estimation based on optical flow field and object tracking based on active shape contour are investigated.
本文研究了背景相减算法、差分法、基于光流场的运动估计和基于主动形状模型的目标跟踪算法。
Results There was no significant difference in resting subendocardial MBF between 40 segments with resting regional wall motion abnormality (RWMA, %WT<30%) and 42 segments without RWMA (P>0.05).
结果静息状态下，40个室壁运动异常（RWMA）心肌节段与42个非RWMA间的心内膜下MBF无明显差异。
The results show that there are great difference between the earthquake responses of double and single tower high-rise buildings, this related to the input ground motion and sites.
结果表明：深厚软弱地基上双塔和单塔高层建筑的地震反应有很大差别，这种差别与场地条件和输入地震动特性有关。
Thomas suspects that the horizon provides a helpful point of reference, allowing people to sense the difference between their body's natural motion and the motion of the ship.
托马斯猜测地平线给人们提供了一个更有利的参照点，让人们感受到身体自然晃动和船体晃动的差别所在。
Same-parity fields are used to improve the accuracy of motion estimation. It estimates the motion by comparing the sum of absolute block difference(SAD) between 4 fields with the threshold of motion.
运动估计通过比较同极性场的像素块绝对值差和（SAD）与运动阈值实现运动估计，并且利用前一场的运动信息进行鲁棒性处理，提高运动检测的精度。
The difference of the length of the rest yarn can be overcome by the use of two sets of electronic let-off motion respectively used to control the let-off of two beams.
以两套电子送经机构分别控制丙只织轴的送经运动，是克服余纱长度不等的措施。
The difference of the length of the rest yarn can be overcome by the use of two sets of electronic let-off motion respectively used to control the let-off of two beams.
以两套电子送经机构分别控制丙只织轴的送经运动，是克服余纱长度不等的措施。
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