Uncertainty in visual processes predicts geometrical optical illusions
(2004) In Vision Research 44(7). p.727-749- Abstract
- It is proposed in this paper that many geometrical optical illusions, as well as illusory patterns due to motion signals in line drawings. are due to the statistics of visual computations. The interpretation of image patterns is preceded by a step where image features such as lines, intersections of lines, or local image movement must be derived. However, there are many sources of noise or uncertainty in the formation and processing of images, and they cause problems in the estimation of these features; in particular, they cause bias. As a result, the locations of features are perceived erroneously and the appearance of the patterns is altered. The bias occurs with any visual processing of line features; under average conditions it is not... (More)
- It is proposed in this paper that many geometrical optical illusions, as well as illusory patterns due to motion signals in line drawings. are due to the statistics of visual computations. The interpretation of image patterns is preceded by a step where image features such as lines, intersections of lines, or local image movement must be derived. However, there are many sources of noise or uncertainty in the formation and processing of images, and they cause problems in the estimation of these features; in particular, they cause bias. As a result, the locations of features are perceived erroneously and the appearance of the patterns is altered. The bias occurs with any visual processing of line features; under average conditions it is not large enough to be noticeable, but illusory patterns are Such that the bias is highly pronounced. Thus, the broader message of this paper is that there is a general uncertainty principle which governs the workings of vision systems, and optical illusions are an artifact of this principle. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/287486
- author
- Fermuller, C and Malm, Henrik LU
- organization
- publishing date
- 2004
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- estimation processes, noise, motion perception, bias, optical illusions
- in
- Vision Research
- volume
- 44
- issue
- 7
- pages
- 727 - 749
- publisher
- Elsevier
- external identifiers
-
- pmid:14751556
- wos:000188890100008
- scopus:1642452768
- ISSN
- 1878-5646
- DOI
- 10.1016/j.visres.2003.09.038
- language
- English
- LU publication?
- yes
- id
- c3f9efb9-36e8-401c-b53b-c12a3bc6dc41 (old id 287486)
- date added to LUP
- 2016-04-01 11:42:11
- date last changed
- 2022-01-26 08:56:08
@article{c3f9efb9-36e8-401c-b53b-c12a3bc6dc41,
abstract = {{It is proposed in this paper that many geometrical optical illusions, as well as illusory patterns due to motion signals in line drawings. are due to the statistics of visual computations. The interpretation of image patterns is preceded by a step where image features such as lines, intersections of lines, or local image movement must be derived. However, there are many sources of noise or uncertainty in the formation and processing of images, and they cause problems in the estimation of these features; in particular, they cause bias. As a result, the locations of features are perceived erroneously and the appearance of the patterns is altered. The bias occurs with any visual processing of line features; under average conditions it is not large enough to be noticeable, but illusory patterns are Such that the bias is highly pronounced. Thus, the broader message of this paper is that there is a general uncertainty principle which governs the workings of vision systems, and optical illusions are an artifact of this principle.}},
author = {{Fermuller, C and Malm, Henrik}},
issn = {{1878-5646}},
keywords = {{estimation processes; noise; motion perception; bias; optical illusions}},
language = {{eng}},
number = {{7}},
pages = {{727--749}},
publisher = {{Elsevier}},
series = {{Vision Research}},
title = {{Uncertainty in visual processes predicts geometrical optical illusions}},
url = {{http://dx.doi.org/10.1016/j.visres.2003.09.038}},
doi = {{10.1016/j.visres.2003.09.038}},
volume = {{44}},
year = {{2004}},
}