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一种基于FPGA的星载图像压缩的小波变换系统及方法
Application NumberCN201110156077.4
顾晓东; 陈军; 王怀超; 安军社; 陈晓敏
2011
Application Date2011-06-10
Date Available2011-12-11
Country中国
Abstract本发明提供一种基于FPGA的星载图像压缩的多级小波变换方法及系统,该方法将各级9/7小波变换中输出的小波系数合成为一路输出,实现流水线操作;所述将各级输出的小波系数合成为一路方法进一步包含:采用内部若干个串联先进先出缓存器缓存行变换后的数据,当缓存一定数目的行数据后即进行列变换,一级变换的LL子带数据采用不连续态间歇的策略送入二级变换模块中,一级变换的LH、HL、HH子带数据经延时单元延迟数个周期后输出;二级变换的LL子带数据采用所述不连续态间歇的策略送入三级变换的模块中,二级变换的LH、HL、HH子带数据经延时单元延迟数个周期后输出;依次类推,可同时进行多级小波变换,最后将各级变换的子带数据合成为一路直接输出。
Language中文
Document Type专利
Identifierhttp://ir.nssc.ac.cn/handle/122/2217
Collection空间技术部
Recommended Citation
GB/T 7714
顾晓东,陈军,王怀超,等. 一种基于FPGA的星载图像压缩的小波变换系统及方法[P]. 2011-01-01.
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