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Investigation of atmospheric insect wing-beat frequencies and iridescence features using a multispectral kHz remote detection system

Gebru, Alem; Rohwer, Erich; Neethling, Pieter and Brydegaard, Mikkel LU (2014) In Journal of Applied Remote Sensing 8.
Abstract
Quantitative investigation of insect activity in their natural habitat is a challenging task for entomologists. It is difficult to address questions such as flight direction, predation strength, and overall activities using the current techniques such as traps and sweep nets. A multispectral kHz remote detection system using sunlight as an illumination source is presented. We explore the possibilities of remote optical classification of insects based on their wing-beat frequencies and iridescence features. It is shown that the wing-beat frequency of the fast insect events can be resolved by implementing high-sampling frequency. The iridescence features generated from the change of color in two channels (visible and near-infrared) during... (More)
Quantitative investigation of insect activity in their natural habitat is a challenging task for entomologists. It is difficult to address questions such as flight direction, predation strength, and overall activities using the current techniques such as traps and sweep nets. A multispectral kHz remote detection system using sunlight as an illumination source is presented. We explore the possibilities of remote optical classification of insects based on their wing-beat frequencies and iridescence features. It is shown that the wing-beat frequency of the fast insect events can be resolved by implementing high-sampling frequency. The iridescence features generated from the change of color in two channels (visible and near-infrared) during wing-beat cycle are presented. We show that the shape of the wing-beat trajectory is different for different insects. The flight direction of an atmospheric insect is also determined using a silicon quadrant detector. (C) 2014 Society of Photo-Optical Instrumentation Engineers (SPIE) (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
stand-off detection, remote dark-field detection, iridescence, optical, cross-section, wing-beat frequency, quadrant detection, multiband, scattering
in
Journal of Applied Remote Sensing
volume
8
publisher
SPIE
external identifiers
  • wos:000348668800001
  • scopus:84920687052
ISSN
1931-3195
DOI
10.1117/1.JRS.8.083503
language
English
LU publication?
yes
id
5cb5abd3-75bf-434c-9690-a80b102527db (old id 5063211)
date added to LUP
2015-03-02 19:47:31
date last changed
2017-08-27 04:37:34
@article{5cb5abd3-75bf-434c-9690-a80b102527db,
  abstract     = {Quantitative investigation of insect activity in their natural habitat is a challenging task for entomologists. It is difficult to address questions such as flight direction, predation strength, and overall activities using the current techniques such as traps and sweep nets. A multispectral kHz remote detection system using sunlight as an illumination source is presented. We explore the possibilities of remote optical classification of insects based on their wing-beat frequencies and iridescence features. It is shown that the wing-beat frequency of the fast insect events can be resolved by implementing high-sampling frequency. The iridescence features generated from the change of color in two channels (visible and near-infrared) during wing-beat cycle are presented. We show that the shape of the wing-beat trajectory is different for different insects. The flight direction of an atmospheric insect is also determined using a silicon quadrant detector. (C) 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)},
  articleno    = {083503},
  author       = {Gebru, Alem and Rohwer, Erich and Neethling, Pieter and Brydegaard, Mikkel},
  issn         = {1931-3195},
  keyword      = {stand-off detection,remote dark-field detection,iridescence,optical,cross-section,wing-beat frequency,quadrant detection,multiband,scattering},
  language     = {eng},
  publisher    = {SPIE},
  series       = {Journal of Applied Remote Sensing},
  title        = {Investigation of atmospheric insect wing-beat frequencies and iridescence features using a multispectral kHz remote detection system},
  url          = {http://dx.doi.org/10.1117/1.JRS.8.083503},
  volume       = {8},
  year         = {2014},
}