在三维场景中进行物体之间的碰撞检测，模拟了一个物体从空中自由落体，碰到下面的一个物体被摔成碎片的过程-in 3D scenes between objects for the collision detection, simulation of a free-fall from the sky objects, get the following guests were an object of debris

数据库安全 数据库安全 数据库安全 数据库安全-We present a novel method for key term extraction from text documents. In our method, document is modeled as a graph of semantic relationships between terms of that document. We exploit the following remarkable feature o

在运动的位置叠加噪声。进行JPDA概率数据关联及kalman滤波。 两运动目标在x-y平面做匀速直线运动。初始位置是（4000,1200）（300,1500）速度分别是（200,200）（400,200）传感器对量目标进行位置状态量测。 采样间隔T=1,点数n=80.检测概率为1，正确量测落入跟踪内的概率为0.99，杂波均匀分布的密度为2个/km2由RAND函数产生在[0，1]上均匀分布的随机变量，跟踪门限为9.21。 -Superimposed noise in the posit

人物跌倒实时监测程序，实时检测人物是否跌倒，并使用高斯滤波取出视频中的噪声干扰。-Figure fell and real-time monitoring program, real-time detection of characters are falling, and using a gaussian filter out noise in video.