对称差分

In the thesis h and r denote the step length of space and time respectively.initial values

同时给出了本文所采用的四个非对称差分格式，经典显格式和经典隐格式。

This is a symmetric difference of the motion detection algorithm, it is practical Oh.

详细说明：这是一个对称差分的运动检测算法，很实用哦。

By combining symmetric difference method,a tracking method for moving targets with moving camera is established.

将此算法和对称差分法结合，给出了一种动摄像机的运动目标跟踪方法，以复杂场景下的人为跟踪目标进行了实验，取得了不错的跟踪效果。

The symmetric difference between two sets is another set where each element is a member of one set but not the other.

两个集合的对称差分是指某集合中的元素，只是这两个集合其中一个的成员。

Similar to the other Boolean set operations, symmetric difference is the XOR of sets.

和其他的布尔集合操作相似，对称差分是集合的XOR(或 exclusive disjunction)。

The symmetric difference update operation returns a set whose members are either elements of the original or other set but not both.

对称差分更新操作返回一个集合，该集合中的成员仅是原集合或仅是另一集合中元素中的成员。

Mobile camera ; background motion compensation ; symmetric difference ; moving target tracking

动摄像机；背景运动补偿；对称差分；运动目标跟踪

The symmetric difference symbol has a method equivalent, symmetric_difference.

对称差分有一个等价的方法，symmetric_difference。

A novel moving object detection based on adaptive background subtraction and symmetrical differencing is presented in this paper.

本文提出了一种基于背景相减法和对称差分法来进行运动目标检测的方法。

First,the original symmetrical differencing is improved.Then,background is reconstructed based on the symmetrical differencing results.

首先对对称差分算法进行了改进，然后基于对称差分结果进行背景重构。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。