Brightness perception: one simple model explaines most if not all effects

Few models can explain Mach bands (Pessoa, 1996 Vision Research 36 3205-3227) . Our own employs multiscale line and edge coding by simple and complex cells. Lines are interpreted by Gaussian functions, edges by bipolar, Gaussian-truncated errorfunctions. Widths of these functions are coupled to the...

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Bibliographic Details
Main Author: du Buf, J. M. H. (author)
Other Authors: Rodrigues, J. M. F. (author)
Format: article
Language:eng
Published: 2009
Subjects:
Online Access:http://hdl.handle.net/10400.1/59
Country:Portugal
Oai:oai:sapientia.ualg.pt:10400.1/59
Description
Summary:Few models can explain Mach bands (Pessoa, 1996 Vision Research 36 3205-3227) . Our own employs multiscale line and edge coding by simple and complex cells. Lines are interpreted by Gaussian functions, edges by bipolar, Gaussian-truncated errorfunctions. Widths of these functions are coupled to the scales of the underlying cells and the amplitudes are determined by their responses.