STEREOACUITY AND BINOCULAR CORRESPONDENCE

人类立体视觉系统的主要功能是将单目视觉 图像，为每个可见特征指定唯一的深度位置。在……里面 在过去的二十年里，有两种方法来研究 来自双眼的信号的双目组合：双目对比 求和和立体匹配。通常，对立体匹配的研究有 忽略了对比度工作，而对双目对比度求和的研究 没有考虑到立体声匹配的作用。然而，这两个问题 是交织在一起的。在分视掩蔽技术中，一只眼睛的高对比度特征 遮盖另一只眼视网膜对应处的弱对比信号。 我们最近演示了立体声匹配操作可以 干预以防止裂孔遮盖在视网膜上的对应。在 建议的研究，我们将使用对比度阈值的测量来 探索人类立体匹配的基本操作。我们将测试 计算立体模型中使用的约束是否 适用于人类的视觉。我们还将重新检查区分掩码 局部非周期性目标，因为以前的大部分研究都采用了 格栅目标。 斜视和屈光参差患者通常会丧失立体视。 由于与他们的情况相关的神经发育异常。在……里面 弱视，弱视者较强的正常眼睛抑制来自 较弱的、异常的眼睛；这种抑制有时被建模为一种类型 分明伪装的。为了了解所经历的损失的性质 立体反常的观察者，我们将重复我们对立体声的许多研究 轻度屈光参差性弱视的配对和分视掩蔽。

The main function of the human stereo system is to combine the monocular images, assigning a unique position in depth to each visible feature. In the last two decades, there have been two approaches to studying the binocular combination of signals from the two eyes: binocular contrast summation and stereo matching. Generally, research on stereo matching has ignored the contrast work, while studies of binocular contrast summation have failed to consider the role of stereo matching. Yet these two issues are intertwined. In dichoptic masking, a high contrast feature in one eye masks a weak contrast signal at retinal correspondence in the other eye. We have recently demonstrated that stereo matching operations can intervene to prevent dichoptic masking at, retinal correspondence. In the proposed research, we will use measurements of contrast thresholds to explore the operations underlying human stereo matching. We will test whether the constraints employed in computational stereo models are applicable to human vision. We will also re-examine dichoptic masking for local aperiodic targets, since much of the previous research has employed grating targets. Strabismic and anisometropic patients often suffer the loss of stereopsis due to the abnormal neural development associated with their condition. In amblyopia, the stronger normal eye of the amblyope suppresses signals from the weaker, abnormal eye; this suppression is sometimes modeled as a type of dichoptic masking. To understand the nature of the loss experienced by stereoanomalous observers, we will repeat many of our studies on stereo matching and dichoptic masking in mild anisometropic amblyopes.