Gao Shengkui, Gruev Viktor
Department of Computer Science and Engineering, Washington University in St. Louis, Saint Louis 63130, Missouri, USA.
Opt Express. 2011 Dec 19;19(27):26161-73. doi: 10.1364/OE.19.026161.
This paper presents bilinear and bicubic interpolation methods tailored for the division of focal plane polarization imaging sensor. The interpolation methods are targeted for a 1-Mega pixel polarization imaging sensor operating in the visible spectrum. The five interpolation methods considered in this paper are: bilinear, weighted bilinear, bicubic spline, an approximated bicubic spline and a bicubic interpolation method. The modulation transfer function analysis is applied to the different interpolation methods, and test images as well as numerical error analyses are also presented. Based on the comparison results, the full frame bicubic spline interpolation achieves the best performance for polarization images.
本文提出了专门用于焦平面偏振成像传感器划分的双线性和双三次插值方法。这些插值方法针对的是工作在可见光谱范围内的100万像素偏振成像传感器。本文考虑的五种插值方法为：双线性、加权双线性、双三次样条、近似双三次样条和双三次插值方法。对不同的插值方法进行了调制传递函数分析，还给出了测试图像以及数值误差分析。基于比较结果，全帧双三次样条插值对于偏振图像具有最佳性能。
