中文摘要：

基于小波变换和尺度空间理论,提出了一种尺度与旋转不变的图像特征点的检测方法。首先对图像进行多尺度的M进制小波变换,然后根据M进制小波变换系数的能量构造对应的二阶矩阵,最后通过考察该矩阵的特征值确定图像的特征点。实验表明,与目前最常用的方法相比,本文方法对图像的旋转变化与尺度变化均具有更好的不变性,在光照变化和噪声干扰等外部条件影响下也能保持较高的鲁棒性。

英文摘要：

The non-vacuum printing technology is studied for the fabrication of CuInSe2（CISe） thin film solar cell.CISe precursor powder,synthesized by the mechanochemical method,is dispersed by ethyl-cellulose to prepare screen-printing paste.The CISe paste is deposited on substrate by the screen-printing technology to form the CISe absorber layer.The printed CISe absorber layers are annealed in N2 ambience by rapid thermal annealing process at various conditions and characterized by XRD,UV,SEM and J-V.It is found that：CISe precursor powder with preferred（112） orientation can be obtained by the mechanochemical method;Screen-printed CISe absorber layer contains lots of organic dispersion agent ethyl-cellulose;High-temperature annealing process can remove most of the ethyl-cellulose and effectively improve the crystallinity of CISe,whereas overlong annealing also introduces defects to the CISe;The short-circuit current density,open-circuit voltage,fill factor and conversion efficiency of a typical CISe solar cell are 4.48 mA/cm2,355 mV,0.41 and 0.65%,respectively.