基于MATLAB在玻璃杯上凸显唯一清晰指纹的动态模拟  

Dynamic simulation of the only clear fingerprints on the glass wall displayed based on MATLAB

作　　者：余少刚[1] 田鑫[1] 贺庆丽[1] 

机构地区：[1]西北大学物理学系,陕西西安710069

出　　处：《大学物理》2012年第12期54-57,共4页College Physics

基　　金：西北大学校级大学生创新性实验计划项目(201026)资助

摘　　要：将MATLAB的数值计算及图形功能,用于模拟装满水的玻璃杯上凸显唯一明亮清晰指纹的现象,通过模拟图像分析了指纹成像的"明亮清晰性"和"唯一性"问题.分别讨论了指纹到水面的距离,玻璃杯的厚度等因素对该现象的影响,并且运用MATLAB进行最小二乘法拟合,建立了指纹到水面距离与出射光线到玻璃杯外壁距离的线性函数关系.The numerical and graphical functions of MATLAB language are used in the simulation of the only bright and clear fingerprints displayed on the wall of a glass filled with water. The ＂bright-clear＂ and ＂only＂ of the fingerprints are analyzed via the simulated images. The effects of the distance from the fingerprints to water sur- face and the thickness of the glass are discussed, and the least squares method is used to fit function by using MAT- LAB. The linear function relationship between the distance from the fingerprints to water surface and the outgoing light to the glass-lined wall is established.

关 键 词：指纹 唯一清晰性 MATLAB 计算机模拟 最小二乘法 

分 类 号：O43[机械工程—光学工程]