High-speed surface reconstruction of a flying bird using structured light

Marc E. Deetjen*, Andrew A. Biewener, David Lentink

*Bijbehorende auteur voor dit werk

OnderzoeksoutputAcademicpeer review

19 Citaten (Scopus)
41 Downloads (Pure)

Samenvatting

Birds fly effectively and maneuver nimbly by dynamically changing the shape of their wings during each wingbeat. These shape changes have yet to be quantified automatically at high temporal and spatial resolution. Therefore, we developed a custom 3D surface reconstruction method, which uses a high-speed camera to identify spatially encoded binary striped patterns that are projected on a flying bird. This non-invasive structured-light method allows automated 3D reconstruction of each stand-alone frame and can be extended to multiple views. We demonstrate this new technique by automatically reconstructing the dorsal surface of a parrotlet wing at 3200 frames s?1 during flapping flight. From this shape we analyze key parameters such as wing twist and angle of attack distribution. While our binary 'single-shot' algorithm is demonstrated by quantifying dynamic shape changes of a flying bird, it is generally applicable to moving animals, plants and deforming objects.

Originele taal-2English
Pagina's (van-tot)1956-1961
Aantal pagina's6
TijdschriftJournal of Experimental Biology
Volume220
Nummer van het tijdschrift11
DOI's
StatusPublished - 1-jun.-2017
Extern gepubliceerdJa

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