摘要
这里基于提升小波理论重点研究了图像边缘检测问题,提出了一种新的图像多尺度边缘检测方法,该检测方法适用于多种线性或非线性双正交小波,具有运算速度快、检测精度高等特点;并基于此边缘检测技术,研究了飞机结构颤振的边界预测问题,给出了一种新的稳定性参数估计方法。
In this paper, a new method of multi - scale edge detection of image signal is presented based on lifting wavelet. The results show us that the method can be used to many kind of biorthogonal wavelets with the advatages of fast speed and higher precision. According to the features and requirements of flutter test signal, the method for edge detection is used to pickup the major information of signal image, and a new technique is brought out for the flutter boundary prediction.
出处
《机械设计与制造》
北大核心
2005年第6期15-17,共3页
Machinery Design & Manufacture
关键词
提升小波
边缘检测
时频共振
Lifting wavelet
Edge detection of image
Syntony of time and frequency
