摘要
分析了激光成像雷达系统中所成的散斑像的乘法模型 ,并在此基础上利用一基于小波的同态滤波器对被散斑污染的图像进行了消噪处理。计算机仿真结果表明此方法能有效地抑制散斑噪声并较好地保留图像的边缘信息 。
A multiplication model of speckle image in imaging lidar is analyzed, and then suppression processing for the speckle image is finished by homomorphic wavelet filter. The experimental results show that this filter can suppress effectively the speckle noise and keep the image edge. Meanwhile, the experiment results prove that multiplication model is useful for speckle image.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2003年第8期717-720,共4页
Chinese Journal of Lasers
关键词
图像处理
乘法模型
小波
散斑
同态变换
消噪
Computer simulation
Image processing
Speckle
Wavelet transforms
