The Paperless Field Guide

Your father's field guide?

Link to May 10 New York Times article, "Digital Field Guides Eliminate the Guesswork".

Excerpt:

The traditional way to identify an unfamiliar tree is to pull out a field guide and search its pages for a matching description. One day people may pull out a smartphone instead, photographing a leaf from the mystery tree and then having the phone search for matching images in a database.

A team of researchers financed by the National Science Foundation has created just such a device — a hand-held electronic field guide that identifies tree species based on the shape of their leaves, said Peter N. Belhumeur, a professor of computer science at Columbia and a member of the team.