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Estimation of errors in luminance signals encoded by primate retina resulting from sampling of natural images with red and green cones
journal contribution
posted on 2023-06-08, 07:25 authored by Daniel Colaco OsorioDaniel Colaco Osorio, D L Ruderman, T W CroninBoth long-wavelength-sensitive (L) and medium-wavelength-sensitive (M) cones contribute to luminance mechanisms in human vision. This means that luminance and chromatic signals may be confounded. We use power spectra from natural images to estimate the magnitude of the corruption of luminance signals encoded by an array of retinal ganglion cells resembling the primate magnocellular neurons. The magnitude of this corruption is dependent on the cone lattice and is most severe where cones form clumps of a single spectral type. We find that chromatic corruption may equal or exceed the amplitude of other sources of noise and so could impose constraints on visual performance and on eye design.
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Publication status
- Published
Journal
Journal of the Optical Society of AmericaISSN
0740-3224Publisher
Optical Society of AmericaExternal DOI
Issue
1Volume
15Page range
16-22ISBN
0740-3232Department affiliated with
- Evolution, Behaviour and Environment Publications
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- No
Peer reviewed?
- Yes
Legacy Posted Date
2012-02-06Usage metrics
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