摘要
给出一种改进阈值算法,与现有的两种算法的消噪效果对比,结果表明,文中提出的改进阈值去噪方法在均方根误差和信噪比意义上均优于已有的两种改进阈值去噪方法,改进公式更为合理。
A new improved algorithm of threshold value is introduced in the paper, comparing with the two existing improved methods in the effect of noise reduction. The results show that the improved method in the paper is better than existing improved threshold denoising methods in RMSE and SNR, the improved formula is more reasonable.
出处
《测绘工程》
CSCD
2012年第3期18-20,34,共4页
Engineering of Surveying and Mapping
基金
国家自然科学基金资助项目(41064001)
广西研究生教育创新计划资助项目(2010105960816M29)
关键词
小波滤波
尺度
改进阈值法
wavelet filtering
scale
improved thresholding method
