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本文讨论光学纤维面板像质评价,由刀口响应转换为调制传递函数,进而用MTF 指标评价面板像质的可能性。本文在实验的基础上,分析得出光学纤维面板在低频范围近似等晕。通过对面板实测刀口响应及其传递函数数据的分析,提出两种评价面板像质的方法。一是刀口响应曲线,二是低频传递函数加刀口响应的背景串光。前者灵敏度高,后者物理意义更为确切,两者均可在光学纤维面板刀口响应检测仪器上实施。
This article discusses the optical fiber panel image quality evaluation, from knife-edge response to modulation transfer function, and then use the MTF index to evaluate the possibility of panel quality. On the basis of experiments, this paper analyzes the approximate isometry halo of optical fiber panels in the low frequency range. Based on the analysis of the measured blade response and its transfer function data, two methods for evaluating the panel image quality are proposed. First, the blade response curve, and second, the low frequency transfer function plus blade response background string light. The former has high sensitivity and the latter has more physical meaning. Both of them can be implemented on the optical fiber panel edge detection device.