摘要
本文描述了一种新的门限选择方法，它基于小波变换多尺度方法分析图像直方图的信息．通过对小波变换后直方图零交叉点检测，得到一序列门限，用于描述图像的边缘特征．整个方法采用一种由粗到细引导的多分辨率门限结构．
A new method of analysis for threshold selectionis presented. It is based on the wavelet transform which provides a multiscale analysis of the information of the histogram of an image. By the detection of the zero-crossings of the wavelet transform of the histogram,a sequence thresholds of the histogram is abtained,which are used to describe the image edge features. The complete method uses a coarse-to-fine multiresolution threshold stategy.
出处
《电子学报》
EI
CAS
CSCD
北大核心
1997年第1期95-97,共3页
Acta Electronica Sinica
基金
国家教委博士点基金
关键词
小波变换
多分辨率
零交叉
门限
图像边缘
Wasvelet transform,Multiresolution,Zero-crossing,Threhold, Image edge
