Abstract
The spatial distribution of elementary colour receptors in the mammalian retina [2,3], their spatial coupling and a simple model of the neural circuits of outer and inner plexiforme layers [4, 7, 9, 10, 11] can provide an interesting hypothese of the spatio-temporal processing of colour and luminance signals. Considering the spatial sampling scheme of colours in fovea and parafovea. and applying the spatio-temporal filters of retinal circuitry [1, 5], we derive the colour-opponancy phenomenon and its relation to the spatio-temporal properties of X ganglion cells as shown in [3, 6], and also the achromatic and spatio-temporal properties of Y cells [8]. All these properties are explained by means of signal processing in the spatio-temporal frequency domain, in conjunction with spatial sub-sampling of colour signals. As a consequence of colour-opponancy, it is easy to postulate a scheme for the colour-constancy phenomenon at a higher level.
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© 1994 Springer-Verlag London Limited
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Herault, J. (1994). Vertebrate retina: sub-sampling and aliasing effects can explain colour-opponent and colour constancy phenomena. In: Marinaro, M., Morasso, P.G. (eds) ICANN ’94. ICANN 1994. Springer, London. https://doi.org/10.1007/978-1-4471-2097-1_3
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DOI: https://doi.org/10.1007/978-1-4471-2097-1_3
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