基于灰关联的中值滤波改进研究  

Study on Improved Algorithm of Median Filtering Based on Grey Correlation

作　　者：袁明月 陈冠宇[2] YUAN Mingyue;CHEN Guanyu(Ningbo Institute of Oceanography,Ningbo 315000,China;Zhejiang Brigade of Surveying and Mapping,Hangzhou 310000,China)

机构地区：[1]宁波海洋研究院,浙江宁波315000 [2]浙江省测绘大队,浙江杭州310000

出　　处：《测绘与空间地理信息》2020年第5期124-127,130,共5页Geomatics & Spatial Information Technology

摘　　要：在灰色系统以及中值滤波去噪理论的基础上,本文提出基于灰关联的中值滤波改进算法,并用MATLAB编程实现了遥感影像去噪处理,使得去噪后均方根误差相对于改进前减低,信噪比相对于改进前提高,改进效果明显,说明改进方法是一种有效的去噪方法。Based on the grey system and the median filter denoising theory,an improved algorithm for median filtering based on gray correlation is proposed.The remote sensing image denoising was realized by MATLAB programming,relative to denoising RMS error improved obviously decreases,and signal-to-noise ratio increases relative to the improved obviously,improve the effect is obvious,shows that improved method is an effective method for noise reduction.

关 键 词：灰色系统 中值滤波 遥感影像 去噪 

分 类 号：P237[天文地球—摄影测量与遥感]