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 ...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.展开更多
基金国家自然科学基金(the National Natural Science Foundation of China under Grant No.60375021)教育部留学回国人员科研启动基金(The Project-Sponsored by SRF for ROCS+5 种基金SEM)湖南省杰出青年基金(the Fund of Hunan Province for Distinguished Young Scholarunder Grant No.05JJ10011)湖南省自然基金重点基金(No.04JJ20010)湖南省教育厅重点项目(the Research Project of Department ofEducation of Hunan ProvinceChina under Grant No.04A056No.05C092)。
文摘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.
