The Visual World of Shadows

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In The Visual World of Shadows, Roberto Casati and Patrick Cavanagh examine how the perception of shadows, as studied by vision scientists and visual artists, reveals the inner workings of the visual system. Shadows are at once a massive problem for vision¿which must distinguish them from objects or material features of objects¿and a resource, signaling the presence, location, shape, and size of objects. They present an overview of the visual system, distinguishing between measurement and inference. They discuss the shadow mission, the work done by the visual brain to parse, and perhaps discard, the information from shadows, shadow ownership, the association of a shadow with the object that casts it, shadow labeling, the visual system's ability to tell shadows from nonshadows, and the shadow concept, our knowledge about shadows as a category. Casati and Cavanagh then apply the theoretical apparatus they have developed for shadows to other phenomena: illumination, reflection, and transparency.

Folgt in ca. 15 Arbeitstagen