J4 ›› 2010, Vol. 48 ›› Issue (1): 99-103.

• 计算机科学 • 上一篇    下一篇

基于小波变换矩阵的改进脊波变换图像去噪

王宏志1, 刘媛媛1,2, 孙琦1   

  1. 1. 长春工业大学 计算机科学与技术学院, 长春 130012|2. 吉林农业大学信息技术学院, 长春 130118
  • 收稿日期:2009-09-14 出版日期:2010-01-26 发布日期:2010-01-27
  • 通讯作者: 刘媛媛 E-mail:liuyuanyuan1980@126.com.

Improved FRIT Denoising Based on Wavelet Transform Matrix

WANG Hongzhi1, LIU Yuanyuan1,2, SUN Qi1   

  1. 1. College of Computer Science and Engineering, Changchun University of Technology, Changchun 130012, China;2. College of Information Technology, Jilin Agricultural University, Changchun 130118, China
  • Received:2009-09-14 Online:2010-01-26 Published:2010-01-27
  • Contact: LIU Yuanyuan E-mail:liuyuanyuan1980@126.com.

摘要:

针对Mallat算法构造小波变换矩阵处理图像. 为解决有限域脊波变换(FRIT)只能应用于素数像素大小的图像且图像处理中产生随机信号和“环绕”的问题, 提出3种改进型FRIT方法, 并将其与不同边界延拓方法相结合应用于图像去噪中.实验结果表明, 所给方法在对于具有直线特征的图像去噪方面性能较优.

关键词: Mallat算法; 小波变换矩阵; 有限域脊波变换(FRIT); 边界延拓; 图像去噪

Abstract:

The authors constructed wavelet transformation matrix to process images in view of Mallat algorithm, in order to solve the questions that FRIT can only apply to pixelsize image of prime number, generated random signal and “around” phenomenon in image processing, and proposed three kinds of improved FRIT methods that were combined with boundary prolong methods, which were used in the image denoising, the experiment showed that the denoising performance of the image with a straight line feature is better.

中图分类号: 

  • TP391