Abstract
AbstractMale mosquitoes swarm to find mates, but the characteristics of these swarms have not yet been quantitatively analyzed in the field. This paper describes a simple method used recently to localize individual Anopheles gambiae in a swarm via stereoscopic image analysis of video footage swarms recorded in Doneguebougou, Mali. The methods described here represent a streamlining of simple triangulation for insect localization in the hope that other researchers will be able to apply the method for studying fundamental questions about flying insects or other taxa.
Highlights
The camera lenses are aligned so as to present a parallel projection
Our Sony HDR-HC7 high definition digital camcorders (Sony Corp., Tokyo Japan) produced HDV compressed video files which could be transferred to the computer
I extracted still images from these stereo movies at the native frame rate of 29.97 images per second using VirtualDub or Cinelerra; these formed the basis for the analysis described in [Manoukis et al(2009)] and the visualization presented below
Summary
Our Sony HDR-HC7 high definition digital camcorders (Sony Corp., Tokyo Japan) produced HDV compressed video files which could be transferred to the computer. Sourceforge.net/) to extract an MPEG-2 compressed video stream. The MPEG-2 compressed clips could be used directly with StereoMovieMaker This application allowed fine adjustments and verification of time synchronization between clips, as well as basic modification of the levels of each image
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