CTP成像系统的MTF测量评价研究

陈羽茜; 唐正宁

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CTP成像系统的MTF测量评价研究
陈羽茜, 唐正宁
江南大学，无锡 214122

摘要:

分析了MTF测量的正弦光栅法和倾斜刃边法，总结了2种方法的优缺点，并分别用2种方法对一简单成像系统的MTF进行了测量，然后将结果与ISO标准进行了对比。结果表明，用倾斜刃边法测量不仅操作简单、易控制，测量结果也更精确。

关键词: 调制传递函数（MTF）正弦光栅倾斜刃边法补偿修正

DOI：

分类号:TS807; TS803.4

基金项目:

Research on MTF Measurement and Evaluation of CTP Imaging System

CHEN Yu-xi, TANG Zheng-ning

Jiangnan University, Wuxi 214122, China

Abstract:

Sinusoidal grating method and slanted edge method of MTF measurement was analyzed. The advantages and disadvantages of the two methods were summarized. MTF of simple imaging system was then measured using the two methods and the compared with ISO standard. The results showed that slanted edge method is not only easy operation and simple control but also has higher accuracy of measurement results.

Key words: MTF sinusoidal grating slanted edge method compensation