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Orientational minimal redundancy wavelets: from edge detection to perception.

Antonio Turiel·Jean-Pierre Nadal·Néstor Parga
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Abstract

Natural images are complex but very structured objects and, in spite of its complexity, the sensory areas in the neocortex in mammals are able to devise learned strategies to encode them efficiently. How is this goal achieved? In this paper, we will discuss the multiscaling approach, which has been recently used to derive a redundancy reducing wavelet basis. This kind of representation can be statistically learned from the data and is optimally adapted for image coding; besides, it presents some remarkable features found in the visual pathway. We will show that the introduction of oriented wavelets is necessary to provide a complete description, which stresses the role of the wavelets as edge detectors.

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Computational BiologyHumansImage Processing, Computer-AssistedModels, PsychologicalVisual PerceptionJournal ArticleResearch Support, Non-U.S. Gov't

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Antonio Turiel, Jean-Pierre Nadal, Néstor Parga. 2003. Orientational minimal redundancy wavelets: from edge detection to perception.. https://doi.org/10.1016/s0042-6989(03)00012-9

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