Passive unmanned sky spectroscopy for remote bird classification

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

We present a method based on passive spectroscopy with aim to remotely study flying birds. A compact spectrometer is continuously recording spectra of a small section of the sky, waiting for birds to obscure part of the field-of-view when they pass the field in flight. In such situations the total light intensity received through the telescope, looking straight up, will change very rapidly as compared to the otherwise slowly varying sky light. On passage of a bird, both the total intensity and the spectral shape of the captured light changes notably. A camera aimed in the same direction as the telescope, although with a wider field-of-view, is triggered by the sudden intensity changes in the spectrometer to record additional information, which may be used for studies of migration and orientation. Example results from a trial are presented and discussed. The study is meant to explore the information that could be gathered and extracted with the help of a spectrometer connected to a telescope. Information regarding the color, size and height of flying birds is discussed. Specifically, an application for passive distance determination utilizing the atmospheric oxygen A-band absorption at around 760 nm is discussed.
Original languageEnglish
Title of host publicationRemote Sensing For Agriculture, Ecosystems, And Hydrology XIII
PublisherSPIE
Volume8174
DOIs
Publication statusPublished - 2011
EventConference on Remote Sensing for Agriculture, Ecosystems, and Hydrology XIII/18th International Symposium on Remote Sensing - Prague, Czech Republic
Duration: 2011 Sept 192011 Sept 21

Publication series

Name
Volume8174
ISSN (Print)1996-756X
ISSN (Electronic)0277-786X

Conference

ConferenceConference on Remote Sensing for Agriculture, Ecosystems, and Hydrology XIII/18th International Symposium on Remote Sensing
Country/TerritoryCzech Republic
CityPrague
Period2011/09/192011/09/21

Subject classification (UKÄ)

  • Biological Sciences
  • Atom and Molecular Physics and Optics

Free keywords

  • Remote sensing
  • passive optical spectroscopy
  • bird migration
  • bird
  • classification
  • diurnal migration
  • Fraunhofer line discrimination

Fingerprint

Dive into the research topics of 'Passive unmanned sky spectroscopy for remote bird classification'. Together they form a unique fingerprint.

Cite this