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Digital Image Processing to Detect Subtle Motion in Stony Coral by Li, Shuaifeng; Roger, Liza M.; Kumar, Lokander; Lewinski, Nastassja; Klein, Judith; Gagnon, Alex; Putnam, Hollie M.; Yang, Jinkyu is a scholarly article available to read on EtoBox.

What is Digital Image Processing to Detect Subtle Motion in Stony Coral about?

Coral reef ecosystems support significant biological activities and harbor huge diversity, but they are facing a severe crisis driven by anthropogenic activities and climate change. An important behavioral trait of the coral holobiont is coral motion, which may play an essential role in feeding, competition, reproduction, and thus survival and fitness. Therefore, characterizing coral behavior through motion analysis will aid our understanding of basic biological and physical coral functions. However, tissue motion in the stony scleractinian corals that contribute most to coral reef construction are subtle and may be imperceptible to both the human eye and commonly used imaging techniques. Here we propose and apply a systematic approach to quantify and visualize subtle coral motion across a series of light and dark cycles in the scleractinian coral Montipora capricornis. We use digital image correlation and optical flow techniques to quantify and characterize minute coral motions under different light conditions. In addition, as a visualization tool, motion magnification algorithm magnifies coral motions in different frequencies, which explicitly displays the distinctive dynamic mod

Author

Li, Shuaifeng; Roger, Liza M.; Kumar, Lokander; Lewinski, Nastassja; Klein, Judith; Gagnon, Alex; Putnam, Hollie M.; Yang, Jinkyu

Published

2020

Language

EN