Wobbling, drooping, bouncing - Visual perception of materials and their properties
Автор: MITCBMM
Загружено: 2021-11-09
Просмотров: 1706
Описание:
Dr. Vivian Paulun, Kanwisher and Tenenbaum Labs, MIT
Abstract: Visual inference of material properties like mass, compliance, elasticity or fragility is crucial to predicting and interacting with our environment. Yet, it is unclear how the brain achieves this remarkable ability. How materials move, flow, fold or deform, depends not only on their internal properties but also on many external factors. For example, the observable behavior of an elastic bouncing object depends on its elasticity but also on its initial position and velocity. Estimating elasticity requires disentangling these different contributions to the observed motion. Predicting the future path of the object requires a forward simulation given the estimated latent parameters. I will present a set of experiments which we investigated how accurately human observers estimate the elasticity of bouncing objects or predict their future path. Furthermore, I will discuss the nature of the visual information observers use as well as the limitations of their internal model.
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