【摘要】 视觉系统的光学调制传递函数( MTF ),通常采用以大脑知觉为基准,对客观物理刺激进行主观评价的心理物理方法来测量。利用哈特曼-夏克波前传感器测量视觉系统的波像差,再由波像差和瞳函数的自相关,即可得出视觉系统的MTF。与心理物理方法相比,该方法不受被测试者情绪和心理状态的影响,并克服了测量过程繁琐的缺陷,具有客观、简便、快捷的特点,测量的全过程仅需3分钟。更多还原

【Abstract】 With brain consciousness as reference, optical Modulation Transfer Function (MTF) of a vision system is measured by means of a psychological-physical method by which subjective evaluation is carried out for objective physical excitation. MTF of a vision system can be measured through measuring wavefront aberrations of a vision system with Hartmann-Shack wavefront sensor and self-correlation of wavefront aberrations with pupil function. Compared with psychological-physical method, the method will not be influenced by feeling and psychological state of person, and the disadvantage of over-elaborate measuring procedure is overcome. It has the advantages of objective measurement with simple and fast process. The whole measuring process can be carried out only in 3 minutes.更多还原