منابع مشابه
Ideal observer for heading judgments
Several aspects of the viewing situation affect the ability to determine heading from optical flow. These include the amount of depth variation and number of texture elements in the scene, the location and amount of the visual field stimulated, and the position of the focus of expansion within the stimulus. Without a quantification of the discrimination information provided by the stimuli prese...
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Ideal Observer Analysis Wilson S. Geisler University of Texas at Austin (to appear in Visual Neurosciences, MIT press) 1.0 Introduction................................................................................................................... 1 2.0 Basic concepts and formulas......................................................................................... 2 2.1 Bayesian ideal ob...
متن کاملJudgments of path, not heading, guide locomotion.
To steer a course through the world, people are almost entirely dependent on visual information, of which a key component is optic flow. In many models of locomotion, heading is described as the fundamental control variable; however, it has also been shown that fixating points along or near one's future path could be the basis of an efficient control solution. Here, the authors aim to establish...
متن کاملIdentifying the authoritative judgments of stuttering: comparisons of self-judgments and observer judgments.
Reliable and accurate stuttering measurement depends on the existence of unambiguous descriptions or exemplars of stuttered and nonstuttered speech. The development of clinically meaningful and useful exemplars, in turn, requires determining whether persons who stutter judge the same speech to be stuttered that other observers judge to be stuttered. The purpose of these experiments, therefore, ...
متن کاملHuman heading judgments in the presence of moving objects.
When moving toward a stationary scene, people judge their heading quite well from visual information alone. Much experimental and modeling work has been presented to analyze how people judge their heading for stationary scenes. However, in everyday life, we often move through scenes that contain moving objects. Most models have difficulty computing heading when moving objects are in the scene, ...
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ژورنال
عنوان ژورنال: Vision Research
سال: 1996
ISSN: 0042-6989
DOI: 10.1016/0042-6989(95)00121-2