基于局部梯度特征的红外微扫描成像技术研究

Infrared Microscanning Imaging Technique Based on Locally Gradient Feature

从空间邻近度和像素相似性角度出发,提出了微扫描和基于梯度特征加权插值技术相结合的方法.该方法利用320×240凝视型红外焦平面探测器,在DSP+FPGA硬件平台上得以实现.实验证明:与经典微扫描技术相比,它既能提高图像空间分辨率,抑制噪音,又能较好地增强红外图像的边缘.

Based on spatial contiguity and pixel comparability, a method was proposed which combined microscanning with weighted interpolation technique. It runon the DSP＋FPGA platform by using 320× 240 IRFPA detector. Experiment indicates： compared with classical microscanning, it can improve the imaging spatial resolution, eliminate noise fussy, and enhance edge of infrared image better.