摘要
依据小波变换理论 ,对汽车车灯颜色测试系统中CCD接收到的含噪光谱信号进行了小波多分辨分析 ,选取较理想的分解层次 ,消去了光谱信号中的噪声 ,提高了测色系统的精度。通过对标准色卡的颜色测量 ,并与标准色度值比较 ,所得偏差△x 0 .0 0 8、△y 0 .0 0 8;重复性△x 0 .0 0 8、△y 0 .0 0 8。
It is based on the theory of chromaticity.A CCD is used as a photodetector to receive electric signal corresponding to spectrum of automobile lamp.A fast spectrum analysis is realized and a way of spectrum analysis on color of automobile lamp is given.Wavelet transform method is used in data processing.The noise of optic spectrum signal is removed off.Using this system,comparing test value of standard color card with standard value of its,the error of △x,△y is less then 0.008.
出处
《激光与红外》
CAS
CSCD
北大核心
2002年第4期271-273,共3页
Laser & Infrared
