Recur B, Younus A, Salort S, Mounaix P, Chassagne B, Desbarats P, Caumes J-P, Abraham E
LOMA, Université de Bordeaux/CNRS, 351 Cours de la Libération, 33405 Talence Cedex, France.
Opt Express. 2011 Mar 14;19(6):5105-17. doi: 10.1364/OE.19.005105.
3D terahertz computed tomography has been performed using a monochromatic millimeter wave imaging system coupled with an infrared temperature sensor. Three different reconstruction methods (standard back-projection algorithm and two iterative analysis) have been compared in order to reconstruct large size 3D objects. The quality (intensity, contrast and geometric preservation) of reconstructed cross-sectional images has been discussed together with the optimization of the number of projections. Final demonstration to real-life 3D objects has been processed to illustrate the potential of the reconstruction methods for applied terahertz tomography.
已使用与红外温度传感器耦合的单色毫米波成像系统进行了三维太赫兹计算机断层扫描。为了重建大型三维物体，比较了三种不同的重建方法（标准反投影算法和两种迭代分析方法）。讨论了重建横截面图像的质量（强度、对比度和几何保真度）以及投影数量的优化。已对实际三维物体进行了最终演示，以说明重建方法在应用太赫兹断层扫描中的潜力。
