光学学报, 2013, 33 (4): 0411002, 网络出版: 2013-02-26
用阶跃法测量光声成像系统的点扩展函数
Measurement of the Point Spread Function of a Photoacoustic Imaging System using Step Method
摘要
从理论上证明了光声成像系统的点扩展函数是边缘响应函数的一阶导数,提出了用阶跃法测量光声成像系统的点扩展函数,用染色琼脂对本方法进行了实验验证,理论计算结果和实验测量数据有很好的一致性,为复杂光声成像系统提供了一种简单实用的点扩展函数测量方法。
Abstract
We theoretically prove that the point spread function (PSF) of a photoacoustic imaging system is the first derivative of the edge response function, and a step method for measurement of the photoacoustic PSF is proposed. The proposed method is experimentally verified using dyed agarose gel phantom, and the results of theoretical calculations and experimental measurement are in good agreement. The method provides a simple and practical way to measure the PSF of a complex photoacoustic imaging system.
周红仙, 周有平, 王毅. 用阶跃法测量光声成像系统的点扩展函数[J]. 光学学报, 2013, 33(4): 0411002. Zhou Hongxian, Zhou Youping, Wang Yi. Measurement of the Point Spread Function of a Photoacoustic Imaging System using Step Method[J]. Acta Optica Sinica, 2013, 33(4): 0411002.