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简要分析了非扫描激光成像的技术优势,介绍了利用条纹管实现非扫描激光成像的工作原理,说明了图像空间分辨力与系统距离精度的对应关系。对影响图像空间分辨力的主要因素进行了理论分析,得到了系统总空间分辨力与各单元器件空间分辨力和放大倍率的对应关系,在此基础上,对现有条纹管成像系统进行了相应的计算,得到了空间分辨力的理论预期值;最后,提出了一种基于分辨力板成像的系统空间分辨力测试方法,设计了相应的验证实验,对实测图像进行了去噪处理和数据分析,得到了图像的衬比度传递函数(CTF)曲线,通过衬比度传递函数分析,计算出了成像系统的实际空间分辨力,并将实测的分辨力数据与理论值进行了对比分析。
The technical advantages of non-scanning laser imaging are briefly analyzed. The working principle of using non-scanning laser imaging with striped tubes is introduced. The corresponding relationship between spatial resolution of image and the accuracy of the system distance is illustrated. The main factors that affect the spatial resolution of image are analyzed theoretically. The corresponding relationship between the total spatial resolution of the system and the spatial resolution and magnification of each unit is obtained. Based on this, Finally, a test method for spatial resolution of the system based on resolution plate imaging is proposed, corresponding verification experiments are designed, and the denoised processing and data analysis of the measured image are carried out , The CTF curve of the image was obtained. The actual spatial resolution of the imaging system was calculated by analyzing the contrast ratio transfer function, and the measured resolution data were compared with the theoretical value.