Digital ridgelet reconstruction based on local dual frame

作     者：BAI Jian FENG Xiangchu 

作者机构：Department of Applied Mathematics Xidian University Xi'an 710071 China 

出 版 物：《Science in China(Series F)》 (中国科学（F辑英文版）)

年 卷 期：2005年第48卷第6期

页      面：782-794页

核心收录：

学科分类：08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程] 

主　　题：ridgelet fast Slant Stack digital ridgelet global dual frame local dual frame 

摘      要：A global dual frame （GDF） representation for the digital ridgelet reconstruction algorithm is discussed and a novel concept of local dual frame （LDF） is presented. Based on the properties of LDF, we propose a new digital ridgelet reconstruction algorithm. The method reduces the redundancy in the digital ridgelet reconstruction while keeping the characteristics of low computation cost. When applying it to the image compression and denoising, good results are obtained.