中文摘要：

首先提出基于非下采样Contourlet变换（NSCT,Nonsubsampled Contourlet Transform）的人眼视觉相对对比度灵敏度函数（RCSF,relative contrast sensitivity function）和绝对对比度灵敏度函数（ACSF,absolute contrast sensitivity function）。然后提出了基于人眼视觉对比度灵敏度函数（CSF,contrast sensitivityfunction）的遥感图像融合算法（IFA-CSF,image fusion algorithmof human visual contrast sensitivity function）。IFA-CSF采用NSCT作为多尺度变换工具,对单方向高频子带采用ACSF融合,对多方向高频子带采用RCSF融合,并对8方向高频子带采用先方向分组再融合的方法。实验结果表明,IFA-CSF优于基于传统CSF和基于局部能量的图像融合算法。

英文摘要：

Based on Nonsubsampled Contourlet Transform（NSCT）,human visual relative contrast sensitivity function（RCSF） and absolute contrast sensitivity function（ACSF） are proposed firstly.Then a remote sensing image fusion algorithm（IFA_CSF） based on human visual contrast sensitivity function（CSF） is proposed.The IFA_CSF adopts NSCT as the muti-scale transformation tool.The single direction high frequency subband is fused by ACSF and multi-direction high frequency subband is fused by RCSF.Meanwhile the high frequency subband which has eight directions is grouped as direction firstly,and then is fused.The experiments indicate that IFA_CSF is superior to the image fusion algorithm based on traditional CSF and local energy.