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» Edges are the Independent Components of Natural Scenes
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VRML
2010
ACM
15 years 3 months ago
Shadow maps and projective texturing in X3D
We propose a number of X3D extensions to enable shadows in the virtual worlds. Our higher-level extensions are an easy way to request shadows independently of their implementation...
Michalis Kamburelis
NECO
2010
154views more  NECO 2010»
14 years 10 months ago
Role of Homeostasis in Learning Sparse Representations
Neurons in the input layer of primary visual cortex in primates develop edge-like receptive fields. One approach to understanding the emergence of this response is to state that ...
Laurent U. Perrinet