Eye movements and optical flow.
Eye movements and optical flow.
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DOI：
10.1364/josaa.7.000160
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
W. Warren;D. Hannon
中科院分区：
文献类型：
--
作者：
W. Warren;D. Hannon
观察者通过静态环境的平移会产生指定自身运动方向的光流模式，但视网膜流模式会被追踪眼运动所混淆。视觉系统如何分解流的平移和旋转分量来确定航向？结果表明，观察者可以在静止注视和追踪眼球运动期间以及通过模拟眼球运动的光学效应的显示器来感知自身运动的方向。结果表明，视觉系统可以仅根据流场信息对连续场和不连续场进行分解，但需要三维环境结构才能完成。这些发现与基于最大散度、动眼神经信号或多重注视的一般计算模型和理论不一致，但与依赖环境深度变化产生的差动运动的理论一致。
Translation of an observer through a static environment generates a pattern of optical flow that specifies the direction of self-motion, but the retinal flow pattern is confounded by pursuit eye movements. How does the visual system decompose the translational and rotational components of flow to determine heading? It is shown that observers can perceive their direction of self-motion during stationary fixations and pursuit eye movements and with displays that simulate the optical effects of eye movements. Results indicate that the visual system can perform the decomposition with both continuous and discontinuous fields on the basis of flow-field information alone but requires a three-dimensional environmental structure to do so. The findings are inconsistent with general computational models and theories based on the maximum of divergence, oculomotor signals, or multiple fixations but are consistent with the theory of reliance on differential motion produced by environmental variation in depth.