First Automatic Identification of Flying Insects Allows Hi-Tech Bug Zapping 99
KentuckyFC writes "Entomologists have never been able to identify flying insects automatically. But not through lack of trying. The obvious approach is to listen out for the frequency of the wing beat. But acoustic microphones aren't up to the job because sound intensity drops with the square of the distance, so flying insects quickly drop out of range. Now a group of researchers has solved this problem using a laser beam pointing at a photosensitive array. Any insect flying through the beam casts a shadow of its beating wings that can easily be recorded at distances of several meters. Using this new device, the team has created a dataset of millions of wing beat recordings, more than all previous recordings put together. And they've used the dataset to train a Bayesian classifier algorithm to identify flying insects automatically for the first time. That opens the prospect of a new generation of bug zappers that kill only certain insects or just females rather than males. That could have a big impact on human health since mosquitoes and other flying insects kill millions of people each year. It could also help in agriculture where insects threaten billions of dollars worth of crops."
Re:Millions of people. (Score:4, Informative)
I think they mean flying insects carry diseases that kill thousands or millions of people. Not necessarily the insects directly kill people like a bad SyFymovie.
malaria, for instance (Score:5, Informative)
According to the WHO, malaria (spread by mosquitoes) killed between 473000 and 789000 people in 2012. Add in a few more similar diseases and it could plausibly be "millions of people".
Re:Old Old Old (Score:4, Informative)
"In your case, they're just killing anything with wings. The summary makes it pretty clear that the laser is only used to cast a shadow to identify what flying nuisance machine it is."
The list of insects I would allow entering my house is rather short.