光学技术, 2019, 45 (6): 724, 网络出版: 2020-01-08
基于局部梯度插值的显微热成像系统微扫描误差修正技术
Thermal microscope imaging system microscanning error correction technique based on local gradient interpolation
显微热成像系统 微扫描 微扫描误差 空间分辨力 thermal microscope imaging system micro-scanning micro-scanning error spatial resolution
摘要
显微热成像系统可观测、记录分析细微目标的温度变化过程, 在需要细微热分析的诸多方面有着广泛的发展前景。由于设备加工及工作过程中存在误差, 影响微扫描系统的精度, 使得微扫描系统扫描过程中偏离标准位置, 故采集得到的四幅低分辨力图像会存在误差, 最终影响显微热成像系统高分辨力图像的重建质量。为尽可能降低微扫描误差, 文章提出了基于局部梯度插值与预处理相结合的微扫描误差修正技术, 通过进行模拟仿真和实验证实该技术可以降低系统微扫描误差, 提高系统的空间分辨力。
Abstract
The micro-thermal imaging system can observe and record the temperature change process of subtle targets, and has broad development prospects in many aspects that require detailed thermal analysis. Due to the error in the processing and working process of the device, affecting the accuracy of the micro-scanning system, causing the micro-scanning system deviates from the standard position during the scanning process, so the four low-resolution images acquired have errors, ultimately affecting the reconstruction quality of high resolution images of systems. In order to reduce the micro-scanning error as much as possible, a micro-scanning error correction technique based on local gradient interpolation and pre-processing was proposed. The simulation and experiment prove that the technique can reduce the system micro-scanning error and improve the spatial resolution of the system.
高美静, 王留柱, 谈爱玲, 张博智, 李时雨, 杨铭. 基于局部梯度插值的显微热成像系统微扫描误差修正技术[J]. 光学技术, 2019, 45(6): 724. GAO Meijing, WANG Liuzhu, TAN Ailing, ZHANG Bozhi, LI Shiyu, YANG Ming. Thermal microscope imaging system microscanning error correction technique based on local gradient interpolation[J]. Optical Technique, 2019, 45(6): 724.