Experimental production of instrumentation system of dynamic stereo function.

在本项目中，我们研制了一种在自然条件下测量双目立体视觉特性的新型仪器。在实验中，每个受试者都戴上了头盔显示器。测量了基于运动视差的双目立体视觉和单目立体视觉的细节特性。测量了不同刺激区和不同点密度的随机点立体图的双眼立体视调制传递函数。结果表明，对于每个空间频率，正弦波的阈值幅度除以平均点间距是恒定的。此外，一个周期内至少需要三个点才能感知正弦，空间求和的半径约为1度。这些数据可以预测人类视觉皮质中超柱体的尺寸和皮质内连接的长度。我们还发现，双目立体的必要条件与单目立体的必要条件非常相似。因此，这些条件反映了大脑表面重建过程的性质。

In this project, we developed the new instrument with which we measured the characteristics of the binocular stereo vision under the natural condition. In the experiment, each subject wore head mount display. We measured the detail properties of binocular stereo vison and monocular stereo vision based on the motion parallax. The modulation transfer function for binocular stereopsis was measured for a random dot stereogram of various stimulus areas and dot densities. The results showed that the threshold amplitude of the sinusoid divided by the average interval between dots is constant for each spatial frequency. Furthermore, at least three dots in one period are necessary to perceive the sinusoid and the radius of the spatial summation is about one degree. These data allow predictions to be made of the dimensions of hypercolumns and and the length of intracortical connections in the human visual cortex. We also found that the necessity condition for binocular stereo is very similar to that for monocular stereo. Therefore, these conditions reflects the property of the surface reconstruction process in the brain.