...光束追迹法对光学系统上的光线进行追踪,求得影像平面上的斑点图(Spot diagram),以此来计算 线扩散函数 ( Line spread function )的光强分布情形,进而求出此光学系统的MTF值。
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emission-line region line spread function 线扩散函数
line spread function lsf 线扩展函数
extrinsic line spread function 非本征线扩展函数
For objective study,simulated line source images of various noise level were compressed. Peak to total count ratio(PTCR)of line spread function of the simulated line source images were analyzed quantitatively.
又作线形放射源的模拟核医学图像,同样压缩,以其线源扩展函数的峰-总计数比为图像客观质量的指标。
参考来源 - 核医学图像主观质量与客观质量的定量对比分析·2,447,543篇论文数据,部分数据来源于NoteExpress
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