摘要
欠采样噪声产生分布于整个画面的小尺寸附加像 ,给目标识别等应用带来困难 .本文推导并优化了CCD图像捕捉系统中消欠采样噪声算法 ,提出新的CCD推扫和采样数据处理方法 ,在CCD只能有推扫方向位移的遥感成像应用条件下 ,消除了图像中的欠采样噪声 .扫描位移误差小于CCD间隔的 1/ 4范围内 ,能消除或减小欠采样噪声 .
Eliminating aliasing noise algorithm used in push-broom CCD image gathering system is derived and optimized. The strategies for CCD push-broom scanning and the methods for data processing are proposed. Aliasings in image are eliminated although CCD array can only move in one direction in remote sensing imaging system. The relative scan error must be less than 1/4 of CCD interval. The results of images processing experiments verify the validity of aliasing noise processing methods.
出处
《电子学报》
EI
CAS
CSCD
北大核心
2003年第9期1323-1326,共4页
Acta Electronica Sinica
基金
国防重大科研基金资助项目
