热红外阿贝成像与空间滤波实验研究

doi:10．14139/j．cnki．cn22－1228．2026．03．003

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摘要基于阿贝成像与空间滤波原理，构建了热红外 4f 光学成像系统，验证了热红外光的低通与高通空间滤波的原理。通过搭建热红外 4f 光学滤波系统，改变低通和高通滤波器的直径来调控热红外图像的空间频谱成分，从而获得具有不同信息分量的重构图像。分析空间滤波处理前后图像的灰度值、锐度和信息熵等指标，以量化不同滤波器尺寸对图像质量的影响。此实验验证了阿贝成像和空间滤波理论在热红外成像中的有效性，通过对空间频谱的调控操作，帮助学生理解空间滤波、空间频率等相关概念，拓宽了信息光学原理在热红外波段的应用。

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	谭紫暄
	李俊仪
	王晨宇
	顾新玲
	何彪
	孔德明
	杨格兰
	邵铮铮

关键词: 热红外 4f 光学系统阿贝成像空间滤波

Abstract: Based on the principles of Abbe imaging and spatial filtering，a thermal infrared 4f optical imaging
system was constructed，and the principles of low-pass and high-pass spatial filtering of thermal infrared light
were experimentally verified．By building a thermal infrared 4f optical filtering system and varying the diameters
of the low-pass and high-pass filters，the spatial spectral components of the thermal infrared images could be
controlled，thereby obtaining reconstructed images with different information components． Indicators such as
grayscale values，sharpness，and information entropy of the images before and after spatial filtering were
analyzed to quantify the impact of different filter sizes on image quality． This experiment verified the
effectiveness of Abbe imaging and spatial filtering theory in thermal infrared imaging．Through the adjustment of
spatial spectra，it helps students understand concepts related to spatial filtering and spatial frequency，and
broadens the application of information optics principles in the thermal infrared spectrum．

Key words: thermal infrared 4f optical system abbe imaging spatial filtering

发布日期: 2026-06-25

ZTFLH:

O 438．2

基金资助: 青年科学基金项目( 51302316)

引用本文:

谭紫暄 , 李俊仪 , 王晨宇 , 顾新玲 , 何彪 , 孔德明 , 杨格兰 , 邵铮铮 . 热红外阿贝成像与空间滤波实验研究[J]. 大学物理实验, 2026, 39(3): 13-20.
TAN Zixuan , LI Junyi , WANG Chenyu, GU Xinling, HE Biao, KONG Deming, YANG Gelan , SHAO Zhengzheng . Experimental Study on Thermal Infrared Abbe Imaging and Spatial Filtering#br#. Physical Experiment of College, 2026, 39(3): 13-20.

链接本文:

https://dawushiyan.jlict.edu.cn/CN/ 10．14139/j．cnki．cn22－1228．2026．03．003 或 https://dawushiyan.jlict.edu.cn/CN/Y2026/V39/I3/13

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