显微热成像系统自适应位置标定方法

利用光学微扫描技术,可在不改变探测器结构的情况下,提高显微热成像系统空间分辨率。但为了获得高质量过采样重构图像,微扫描位置需要标定。基于零点定标,提出一种各点自适应定标的微扫描位置标定方法。模拟实际系统在定标前后的欠采样图像,采用不同重构方法进行仿真对比验证;完成了实际采集的欠采样显微热图像序列的重构对比实验。实验结果表明该方法明显改善了显微热成像系统的过采样重构图像质量,提高了系统空间分辨率。此方法还可以应用在其他光电成像系统中。

Adaptive Position Calibration for Thermal Microscopic Imaging System

With optical micro scanning technology, the spatial resolution of micro thermal imaging systems can be improved without changing the detector structure. But in order to obtain high-quality oversampled reconstructed image, the micro scanning position must be calibrated. A each point adaptive calibration micro scanning method based on the zero calibration theory is proposed. The reconstruction contrast experiments of undersampled microscopic thermal images are done before and after calibration with the thermal image and the real thermal microscopic image. The experimental results show that the method significantly improves the oversampled reconstructed image quality, and enhances the system spatial resolution. This method can also be used in other electro-optical imaging systems.