高阶像差矫正后立体视觉的时间整合特性
Temporal integration property of stereopsis after higher-order aberration correction.
作者信息
Kang Jian, Dai Yun, Zhang Yudong
机构信息
The Laboratory on Adaptive Optics, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China ; The Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu 610209, China ; University of Chinese Academy of Sciences, Beijing 100049, China.
The Laboratory on Adaptive Optics, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China ; The Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu 610209, China ;
出版信息
Biomed Opt Express. 2015 Oct 20;6(11):4472-82. doi: 10.1364/BOE.6.004472. eCollection 2015 Nov 1.
Based on a binocular adaptive optics visual simulator, we investigated the effect of higher-order aberration correction on the temporal integration property of stereopsis. Stereo threshold for line stimuli, viewed in 550nm monochromatic light, was measured as a function of exposure duration, with higher-order aberrations uncorrected, binocularly corrected or monocularly corrected. Under all optical conditions, stereo threshold decreased with increasing exposure duration until a steady-state threshold was reached. The critical duration was determined by a quadratic summation model and the high goodness of fit suggested this model was reasonable. For normal subjects, the slope for stereo threshold versus exposure duration was about -0.5 on logarithmic coordinates, and the critical duration was about 200 ms. Both the slope and the critical duration were independent of the optical condition of the eye, showing no significant effect of higher-order aberration correction on the temporal integration property of stereopsis.
基于双目自适应光学视觉模拟器，我们研究了高阶像差校正对立体视觉时间整合特性的影响。在550nm单色光下观察线刺激的立体视觉阈值，作为曝光持续时间的函数进行测量，分别在未校正高阶像差、双目校正或单目校正的情况下。在所有光学条件下，立体视觉阈值随着曝光持续时间的增加而降低，直到达到稳态阈值。临界持续时间由二次求和模型确定，高拟合优度表明该模型是合理的。对于正常受试者，在对数坐标上，立体视觉阈值与曝光持续时间的斜率约为-0.5，临界持续时间约为200毫秒。斜率和临界持续时间均与眼睛的光学条件无关，表明高阶像差校正对立体视觉的时间整合特性没有显著影响。
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