@inproceedings{1c2608a929904ebb98ba876ef3ae2c49,
title = "Implementation of a wireless image motion estimation method for two-dimensional crack monitoring",
abstract = "In this paper, a preliminary study on the development of a wireless image-based sensor for two-dimensional (2D) crack propagation monitoring is reported. This sensor contains an optical navigation sensor board (ADNS-9500) which is incorporated into the Imote2 IPR2400 platform. To monitor crack propagation, the Imote2 sends a signal to the ADNS-9500 to switch on the built-in laser and camera collecting images reflected from the concrete surface. The captured images are processed by motion estimation methods to obtain the relative displacement between images. A series of tests have been conducted to calibrate the accuracy of the proposed crack sensor. Results show that the crack sensor can track linear motion and sinusoidal motion quiet well under some a range of speed.",
keywords = "Crack sensor, Imote2, Normalized cross correlation, Optical navigation sensor board, Phase correlation",
author = "Man, {Sin Hang} and Chang, {Chih Chen} and Muhammad Hassan and Amine Bermak",
year = "2013",
doi = "10.1117/12.2009427",
language = "English",
isbn = "9780819494757",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013",
note = "2013 SPIE Conference on Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013 ; Conference date: 10-03-2013 Through 14-03-2013",
}