A method for reconstructing three-dimensional positions of swarming mosquitoes

Autor: Ken-ichi Urabe, Toyohiko Mori, Hidehiko Okabe, Terumi Ikawa, Toshiaki Ikeshoji
Rok vydání: 1994
Předmět:
Zdroj: Journal of Insect Behavior. 7:237-248
ISSN: 1572-8889
0892-7553
DOI: 10.1007/bf01990084
Popis: We developed a new field method for reconstructing the three-dimensional positions of swarming mosquitoes. This method overcame certain inherent difficulties accompanied by conventional stereoscopic methods and is applicable to three-dimensional measurements of other insect species. Firstly, we constructed a probabilistic model for stereoscopy; if mosquitoes and six reference points with known coordinates were photographed simultaneously from two or more perspectives, then from the positions of images of mosquitoes and the reference points on the photographs, 1) the position of each camera with respect to the reference points is estimated; 2) stereo images which correspond to an identical real mosquito are matched; and 3) the spatial positions of the mosquitoes are determined. We automated the processes 1), 2) and 3), developing computer programs based on our model. We then constructed a portable system for three-dimensional measurements of swarming mosquitoes in the field. Initial data that illustrate the application of our method to studying mosquito swarming were presented.
Databáze: OpenAIRE
Externí odkaz: