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Foreground scattering elimination by inverse lock-in-like spatial modulation

Lin, Yueyu and Svanberg, Sune LU (2020) In Vision (Switzerland) 4(3).
Abstract

We describe a simple approach to enhance vision, which is impaired by close range obscuring and/or scattering structures. Such structures may be found on a dirty windscreen of a car, or by tree branches blocking the vision of objects behind. The main idea is to spatially modulate the obscuration, either by periodically moving the detector/eye or by letting the obscuration modulate itself, such as branches swinging in the wind. The approach has similarities to electronic lock-in techniques, where the feature of interest is modulated to enable it to be isolated from the strong perturbing background, but now, we modulate the background instead to isolate the static feature of interest. Thus, the approach can be denoted as “inverse... (More)

We describe a simple approach to enhance vision, which is impaired by close range obscuring and/or scattering structures. Such structures may be found on a dirty windscreen of a car, or by tree branches blocking the vision of objects behind. The main idea is to spatially modulate the obscuration, either by periodically moving the detector/eye or by letting the obscuration modulate itself, such as branches swinging in the wind. The approach has similarities to electronic lock-in techniques, where the feature of interest is modulated to enable it to be isolated from the strong perturbing background, but now, we modulate the background instead to isolate the static feature of interest. Thus, the approach can be denoted as “inverse lock-in-like spatial modulation”. We also apply a new digital imaging processing technique based on a combination of the Interframe Difference and Gaussian Mixture models for digital separation between the objects of interest and the background, and make connections to the Gestalt vision psychology field.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Background subtraction, Gestalt psychology, Lock-in techniques, Modulation, Scattering, Vision
in
Vision (Switzerland)
volume
4
issue
3
article number
37
pages
12 pages
external identifiers
  • pmid:32823703
  • scopus:85089572289
ISSN
2411-5150
DOI
10.3390/vision4030037
language
English
LU publication?
yes
id
e21fb207-6cad-4b76-aebd-90c27bfa16e2
date added to LUP
2020-08-28 12:38:47
date last changed
2020-09-09 14:15:11
@article{e21fb207-6cad-4b76-aebd-90c27bfa16e2,
  abstract     = {<p>We describe a simple approach to enhance vision, which is impaired by close range obscuring and/or scattering structures. Such structures may be found on a dirty windscreen of a car, or by tree branches blocking the vision of objects behind. The main idea is to spatially modulate the obscuration, either by periodically moving the detector/eye or by letting the obscuration modulate itself, such as branches swinging in the wind. The approach has similarities to electronic lock-in techniques, where the feature of interest is modulated to enable it to be isolated from the strong perturbing background, but now, we modulate the background instead to isolate the static feature of interest. Thus, the approach can be denoted as “inverse lock-in-like spatial modulation”. We also apply a new digital imaging processing technique based on a combination of the Interframe Difference and Gaussian Mixture models for digital separation between the objects of interest and the background, and make connections to the Gestalt vision psychology field.</p>},
  author       = {Lin, Yueyu and Svanberg, Sune},
  issn         = {2411-5150},
  language     = {eng},
  number       = {3},
  series       = {Vision (Switzerland)},
  title        = {Foreground scattering elimination by inverse lock-in-like spatial modulation},
  url          = {http://dx.doi.org/10.3390/vision4030037},
  doi          = {10.3390/vision4030037},
  volume       = {4},
  year         = {2020},
}