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Anti-aliasing in image recording and display hardware: lessons from nature

Kröger, Ronald LU (2004) In Journal of Optics. A, Pure and Applied Optics 6(8). p.743-748
Abstract
If images are undersampled during electronic recording and reproduction, regular patterns in the image may form interference patterns-aliases-with the mosaic of picture elements (pixels). Aliasing distorts visual information and is a serious technical problem. In a variety of animal eyes, images are also undersampled such that aliasing may occur. Nature's measures to reduce aliasing include (i) mosaics of photosensitive cells (pixels in technical applications) that include many spatial frequencies and are different in geometry for the basic colours red, green, and blue, (ii) electrical coupling between cells of different spectral sensitivities, and (iii) overlap between the spectral sensitivities of different cell types. Computer simulated... (More)
If images are undersampled during electronic recording and reproduction, regular patterns in the image may form interference patterns-aliases-with the mosaic of picture elements (pixels). Aliasing distorts visual information and is a serious technical problem. In a variety of animal eyes, images are also undersampled such that aliasing may occur. Nature's measures to reduce aliasing include (i) mosaics of photosensitive cells (pixels in technical applications) that include many spatial frequencies and are different in geometry for the basic colours red, green, and blue, (ii) electrical coupling between cells of different spectral sensitivities, and (iii) overlap between the spectral sensitivities of different cell types. Computer simulated renderings of images show that the measures are effective. Technical implementation seems to be possible in a variety of applications, such as cameras, television sets, scanners, monitors, data projectors, and digital photocopying machines. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
fish retina, pixel mosaic, aliasing, image recording, image reproduction
in
Journal of Optics. A, Pure and Applied Optics
volume
6
issue
8
pages
743 - 748
publisher
IOP Publishing
external identifiers
  • wos:000223540500001
  • scopus:4043139377
ISSN
1741-3567
DOI
10.1088/1464-4258/6/8/001
language
English
LU publication?
yes
id
b30b6819-5d79-4f27-b228-a1070c5c23c9 (old id 268455)
date added to LUP
2007-08-02 16:30:19
date last changed
2017-03-26 03:29:36
@article{b30b6819-5d79-4f27-b228-a1070c5c23c9,
  abstract     = {If images are undersampled during electronic recording and reproduction, regular patterns in the image may form interference patterns-aliases-with the mosaic of picture elements (pixels). Aliasing distorts visual information and is a serious technical problem. In a variety of animal eyes, images are also undersampled such that aliasing may occur. Nature's measures to reduce aliasing include (i) mosaics of photosensitive cells (pixels in technical applications) that include many spatial frequencies and are different in geometry for the basic colours red, green, and blue, (ii) electrical coupling between cells of different spectral sensitivities, and (iii) overlap between the spectral sensitivities of different cell types. Computer simulated renderings of images show that the measures are effective. Technical implementation seems to be possible in a variety of applications, such as cameras, television sets, scanners, monitors, data projectors, and digital photocopying machines.},
  author       = {Kröger, Ronald},
  issn         = {1741-3567},
  keyword      = {fish retina,pixel mosaic,aliasing,image recording,image reproduction},
  language     = {eng},
  number       = {8},
  pages        = {743--748},
  publisher    = {IOP Publishing},
  series       = {Journal of Optics. A, Pure and Applied Optics},
  title        = {Anti-aliasing in image recording and display hardware: lessons from nature},
  url          = {http://dx.doi.org/10.1088/1464-4258/6/8/001},
  volume       = {6},
  year         = {2004},
}