VISUAL IMAGE MOTION PROCESSING IN HUMANS

我们提出了一系列人类心理物理实验， 回答两大领域的问题。 有哪些基本 图像运动处理的机制， 功能效益。 在机制方面，我们侧重于中间层， 分析，询问来自基本运动子单元的信号 联合收割机在时间、空间和空间尺度上组合信息。 我们 主要的心理物理任务是辨别方向 运动，测量对比度阈值，信噪比 阈值和最小位移阈值（Dmin）。 一 研究将获得移动的感知刚性的评级， 数字 就运动处理的功能优势而言，我们将 研究3个方面;首先，我们将测量定位精度 的motiondefined边界使用宽度歧视的任务。 其次，我们将研究运动深度敏感性， 是否与单眼运动敏感度有关; 它是否可以通过单克隆运动适应改变;以及 它是否能得到回旋运动刺激的支持， 没有单眼运动信息。 第三，我们将调查 运动处理如何在重新校准 depthfromdisparity信号

We propose a series of human psychophysical experiments to answer questions in two broad areas. What are the basic mechanisms of image motion processing and what are the functional benefits. In terms of mechanism, we focus at an itermediate level of analysis, askig how the signals from elementary motion subunits combine information over time, space, and spatial scale. Our primary psychophysical task will be to discriminate the direction of motion, measuring contrast thresholds, signaltonoise ratio thresholds, and minimum displacement thresholds (Dmin). One study will obtain ratings of the perceived rigidity of moving figures. In terms of the functional benefits of motion processing, we will study 3 areas; first we will measure the precision of localization of motiondefined boundaries using a width discrimination task. Second, we will investigate motionindepth sensitivity, asking whether it can be related to monocular motion sensitivity; whether it can be altered by monoclonal motion adaptation; and whether it can be supported by a cyclopean motion stimulus which has no monocular motion information. Third, we will investigate how motion processing might play a role in recalibrating the depthfromdisparity signal.