乒乓球

Olympic team, including four Chinese-born table tennis players, a kayaker from Britain, seven members of the track-and-field team — as well as Lopez Lomong, one of the Lost Boys of Sudan's civil war, who was resettled in the U.S.

其中包括4位出生在中国的乒乓球运动员、一位来自英国的皮划艇运动员、田径队的7位成员。

We can see there are a small kumquat, round kumquat this small like a ping-pong, its skin is yellow, very smooth, there is a faint smell of incense, sweet acid bite of it.

打开一看里面有一个小金橘，这个小金橘圆圆的像个乒乓球，它的皮是黄色的，非常光滑，闻起来有一种淡淡的清香，咬一口它酸酸甜甜的。

Table tennis is a young sport. It is much younger than lawn tennis.

乒乓球是一项很年轻的运动，它比网球要年轻得多。

It descended, along with lawn tennis and badminton, from the ancient medieval game of tennis.

乒乓球跟草坪网球和羽毛球都是由网球演变而来的。

Wang Ping: They come not only to learn Wushu, but also to learn table tennis , track and field , swimming, gymnastics and so on.

王平：不仅来学武术，也有来学其他体育项目的，比如乒乓球、田径、游泳、体操什么的。

When I met him, Mr Liang was running his own ping-pong club in Beijing.

当我见到他的时候，梁先生正在经营他在北京的乒乓球俱乐部。

Father and Mother are out and Margot has gone to play Ping-Pong with some other young people.

爸爸妈妈出去了，玛格特也和她的朋友打乒乓球去了。

In this paper, the theory, algorithm, and experiment of automatic object detection and tracking are studied in depth. It is firstly pointed out that the essential of Mean Shift method is a special Newton-Gaussian method. A new method named Fast Mean Shift is established to stretch the conservative step of Mean Shift method. The convergence and validity of this new method are proved in theory. And it is also proved that the convergence speed of Fast Mean Shift is faster than that of Mean Shift. The contrast experiments of searching the maximum possibility density of random of data sets in plane and 3D space are done. The results show that this new method can reduce the iterations greatly. A new object tracking method based on Fast Mean Shift is built to improve the object tracking performance, which is shown in the face tracking experiment with the tennis sequence provided by the Ohio State University, and the car tracking experiment with the car sequence provided by Kalsruhe University. The face trcking experiment with highly noised images show that the object tracking method based on Fast Mean Shift has strong anti-jamming ability. A new fast color object detection technology based on characteristic color is established, which use characteristic color distribution to compute the characteristic color vector of any area in an image quickly. With the high performance search method, the fast object detection is achieved. At last, using object tracker based on Fast Mean Shift and color object detector based on characteristic color with the Kalman filter, PID controller, searial communication and other technologies, automatic object detection and tracking system with control system is built. The availability and anti-jamming ability of this system are verified by some object detection and tracking tests in different scenes.

本文对目标自动识别与跟踪进行了理论、计算、试验三方面的深入研究，主要包括：首次指出了目标跟踪技术中常用的均值迁移方法的本质为一种特殊的高斯-牛顿方法，改进了均值迁移方法步长取值保守的弱点，建立了快速均值迁移方法，证明了该方法的收敛性、有效性以及收敛速度优于均值迁移方法；进行了平面和3维随机分布数据集的最大概率密度搜索对比试验，试验结果表明，快速均值迁移方法大大减少了迭代次数；建立了基于快速均值迁移的目标跟踪方法，利用俄亥俄州立大学提供的乒乓球序列图像和卡斯鲁厄大学的汽车序列图像，对人脸和汽车目标跟踪性能分别进行了对比试验，并进行了高噪声人脸图像目标跟踪试验，结果表明，基于快速均值迁移的目标跟踪方法有效提高了目标跟踪性能，具有很强的抗干扰能力；建立了一种新型彩色目标自动识别方法，采用特征色彩分布函数实现了对任意图像区域特征色彩矢量的快速计算，建立了高效的搜索方法，实现了彩色目标的快速识别；将基于快速均值迁移方法的目标跟踪方法、基于特征色彩的目标识别方法与卡尔曼滤波、PID控制、串行通讯等技术结合，建立了带有控制系统的快速目标自动识别与跟踪系统，并在不同场景下进行了目标自动识别与跟踪试验，验证了快速目标自动识别与跟踪系统的有效性和抗干扰能力。

I am Deng Yaping, 4 time Olympic gold medallist in table tennis.

我是邓亚萍，四次奥运会乒乓球冠军。

"I am Deng Yaping, four-time Olympic gold medallist in table tennis."

我是邓亚萍，四次奥运会乒乓球冠军。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。