Rodrigues, J. M. F.du Buf, J. M. H.2009-02-132009-02-132006International Conference on Computer Vision Theory and Applications (VISAPP 2006). - Setúbal, 25-28 February 2006. - Vol. 2. - p. 5-12http://hdl.handle.net/10400.1/115In this paper we present an improved scheme for line and edge detection in cortical area V1, based on responses of simple and complex cells, truly multi-scale with no free parameters. We illustrate the multi-scale representation for visual reconstruction, and show how object segregation can be achieved with coarse-to-finescale groupings. A two-level object categorization scenario is tested in which pre-categorization is based on coarse scales only, and final categorization on coarse plus fine scales. Processing schemes are discussed in the framework of a complete cortical architecture.engVisão computorizadaCórtex visualVisual cortexLine and edge detectionMulti-scaleVisual reconstructionRecognitionCategorizationjournal article