Underestimation of visual texture slant by human observers: a model
نویسندگان
چکیده
منابع مشابه
Discrimination of planar surface slant from texture: human and ideal observers compared
In order to quantify the ability of the human visual system to use texture information to perceive planar surface orientation, I measured subjects' ability to discriminate planar surface slant (angle away from the fronto-parallel) for a variety of different types of textures and in a number of different viewing conditions. I measured the subjects' discrimination performance as a function of sur...
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Does the human visual system implement an ideal observer theory of slant from texture?
Texture information about surface shape can be decomposed into three constituents: compression, density and scaling. Blake, Bülthoff and Sheinberg's (1993, Vision Research, 33, 1723-1737) Ideal Observer theory of slant from texture predicts that the relative contribution of compression and density to the percept of planar surface slant should vary with field of view (FOV). The contribution of c...
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Efficient and versatile processing of any hierarchically structured information requires a learning mechanism that combines lower-level features into higher-level chunks. We investigated this chunking mechanism in humans with a visual pattern-learning paradigm. We developed an ideal learner based on Bayesian model comparison that extracts and stores only those chunks of information that are min...
متن کاملSome observations on the effects of slant and texture type on slant-from-texture
We measure the performance of five subjects in a two-alternative-forced-choice slant-discrimination task for differently textured planes. As textures we used uniform lattices, randomly displaced lattices, circles (polka dots), Voronoi tessellations, plaids, 1/f noise, "coherent" noise and a leopard skin-like texture. Our results show: (1) Improving performance with larger slants for all texture...
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ژورنال
عنوان ژورنال: Biological Cybernetics
سال: 1991
ISSN: 0340-1200,1432-0770
DOI: 10.1007/bf00206219