Sunday 5 August 2012

Identifying Dolphins With Technology


ScienceDaily (July 31, 2012) — Dolphins all look pretty similar. So it can be problematic when your job requires you to identify individual dolphins in order to study their behavioral and ecological patterns. Photo-identification techniques -- recognizing a particular dolphin by the nicks, scars and notches on its dorsal fin -- are useful, but tedious.

"Researchers photograph dolphins in their natural surroundings and compare new dorsal fin photographs against a catalogue of previously identified dolphins," explains Kelly Debure, professor of computer science at Eckerd College in St. Petersburg, Florida. "These catalogs are often organized into categories based on either distinct fin shape or location of predominant damage. The manual photo-identification process, although effective, is extremely time consuming and visually stressful, particularly with large collections of known dolphins."

It was time to bring dolphin identification into the digital age.

Debure, along with Eckerd students, developed DARWIN, or Digital Analysis and Recognition of Whale Images on a Network, a computer program that simplifies photo-identification of bottlenose dolphins by applying computer vision and signal processing techniques to automate much of the tedious manual photo-id process.


Continued:
 http://www.sciencedaily.com/releases/2012/07/120731201136.htm

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