Abstract

Info

Author(s):: WANG Weiya¹; HUANG Pingyun²; HAN Yuhui¹; 1. School of Information Engineering, Changan University, Xian 710064, Shaanxi, China; 2. School of Science, Changan University, Xian 710064, Shaanxi ,China

Keywords:: road engineering; subgrade detecting; discrete wavelet transform; projectionbased complex wavelet transform; image processing

Abstract:: To remedy the defect of discrete wavelet transform in direction subgrade of roadbed radar image, this paper proposed a method using projectionbased complex wavelet transform to enhance the image direction. The complex wavelet transform can enhance the subgrade radar image in every direction. The test proved that projectionbased complex wavelet transform works good in directional enhance with shiftinsensitive and explicit phase information in radar subgrade image processing, it has a better results than the one of discrete wavelet transform. 11 figs, 7 refs.