摘要
利用已知实验参数 (图象噪声、图象对比度、粒子浓度、粒子直径、诊断窗口和偏置窗口 )的计算机模拟图象 ,选择基于互相关算法的数字粒子图象测速技术 (DigitalParticle ImagingVelocimetry ,DPIV)的各种最优实验参数 (即误差最小 ) ,然后利用选择的最优实验参数进行DPIV实际图象的处理 ,取得了满意的结果 .
Various optimal experimental parameters of DPIV based on cross correlation algorithm are chosen by using computer simulated images of such known experimental parameters as image noise,image contrast,particle concentration, particle diameter, interrogation window and spacing window, and successfully applied to the actual image manipulation of DPIV.
基金
国家自然科学基金资助项目!( 5 9876 0 38)
关键词
计算机模拟图象
实验参数
DPIV
流场测量
computer simulant images
experimental parameters
cross correlation and DPIV
