EP Calipers is an Android application that provides electronic calipers for making measurements on images of ECGs or other recordings. Calculations such as mean heart rate and corrected QT intervals can be performed directly in the app.
EP Calipers is open source, and licensed under the GNU GPL v3 license.
Copyright © 2015-2019 EP Studios, Inc.
Thanks to Dr. Michael Katz for the concept.
The Brugadometer is based on the work of Dr. Adrian Baranchuk and his colleagues at Queen's University Kingston, Ontario, Canada. It is used with Dr. Baranchuk's permission and encouragement. Please see this article for more information.
EP Calipers uses the PhotoView image library of Chris Banes which is licensed under the Apache 2.0 license. See the GitHub page for source code and detailed license information. Note that per the Apache Software Foundation, and per gnu.org Apache-licensed code can be included in GPLv3 projects such as this one. EP Calipers also uses the android-pdfview library of Joan Zapata which is licensed under the GNU GPL v3 license. The color selector is copyright 2014-2017 QuadFlask and is licensed under the Apache 2.0 license. The preferences color selector is copyright 216 Kizito Nwose and is licensed under the Apache 2.0 license.
French translation by David Mann, Gretchen Mann, Juliet Mann and Jean-Claude Hounou. Also thanks to Dr. Pierre Taboulet for confirming to me that a cardiologist's caliper is a "Compas" and not an "Étrier!"
Thanks to Victoria Churilina for the Russian translation.
Thanks to Scott Krankkala for the idea behind marching calipers.