Abstract: Unique body characteristics are
increasingly used for individual recognition to avoid the effort and the
potential negative effects of capture–mark–recapture technique. As a
consequence there is a growing demand for computer procedures to assist users
in photo-recognition of an individual. We present a new software for
photo-matching developed to minimize the pre-processing time and maximize the
speed of the matching procedure. In APHIS photos can be processed in batches of
hundreds and users can select between two alternative matching procedures, one
interactive, built as an extension of existing and freely available software,
and one automatic. We assessed its performance in terms of individual
recognition and time efficiency and illustrate its use with real
capture-photo–recapture studies on a reptile and an amphibian species, the
Balearic Lizard Podiarcis lilfordi and the Northern
spectacled salamander Salamandrina perspicillata,
with contrasting skin patterns.
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