Young Researcher Paper Award 2023
🥇Winners

Notice of retraction
Vol. 34, No. 8(3), S&M3042

Notice of retraction
Vol. 32, No. 8(2), S&M2292

Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Sensors and Materials
is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.

Instructions to authors
English    日本語

Instructions for manuscript preparation
English    日本語

Template
English

Publisher
 MYU K.K.
 Sensors and Materials
 1-23-3-303 Sendagi,
 Bunkyo-ku, Tokyo 113-0022, Japan
 Tel: 81-3-3827-8549
 Fax: 81-3-3827-8547

MYU Research, a scientific publisher, seeks a native English-speaking proofreader with a scientific background. B.Sc. or higher degree is desirable. In-office position; work hours negotiable. Call 03-3827-8549 for further information.


MYU Research

(proofreading and recording)


MYU K.K.
(translation service)


The Art of Writing Scientific Papers

(How to write scientific papers)
(Japanese Only)

Sensors and Materials, Volume 33, Number 3(2) (2021)
Copyright(C) MYU K.K.
pp. 995-1008
S&M2511 Research Paper
https://doi.org/10.18494/SAM.2021.3011
Published: March 12, 2021

Optical Crackmeter for Retaining Wall in a Landslide Area Using Computer Vision Technology [PDF]

Yu-Chin Chen, I-Hui Chen, Jun-Yang Chen, and Miau-Bin Su

(Received August 4, 2020; Accepted January 25, 2021)

Keywords: computer vision, crackmeter, landslide monitoring, IoT instrument

An innovative 3D optical crackmeter employing computer vision technology is used for displacement monitoring in a crack of a retaining wall automatically and remotely. The 3D optical crackmeter is composed of a Raspberry Pi device and a digital camera in a box, and a fixed chessboard on the two sides of a crack. A network with LoRa wireless communication can be connected as an IoT system to provide automatic remote functions. The OpenCV library is employed to analyze changes in chessboard imaging so that relative displacements of the crack in the retaining wall can be measured in a landslide area. Through laboratory and field testing, the resolution and accuracy of the 3D optical crackmeter were determined as 0.04 and 0.1 mm, respectively. Using the crackmeter, we observed significant displacements in the x- and z-directions of the crack in a retaining wall of 0.067 and 0.060 cm, respectively, in the Jhongsinlun landslide area of Taiwan over three months. Overall, the 3D optical crackmeter with computer vision technology can accurately measure the 3D displacement of cracks in a retaining wall. Moreover, the IoT-based 3D optical crackmeter is more cost-effective than traditional crackmeters used in landslide areas.

Corresponding author: I-Hui Chen


Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

Cite this article
Yu-Chin Chen, I-Hui Chen, Jun-Yang Chen, and Miau-Bin Su, Optical Crackmeter for Retaining Wall in a Landslide Area Using Computer Vision Technology, Sens. Mater., Vol. 33, No. 3, 2021, p. 995-1008.



Forthcoming Regular Issues


Forthcoming Special Issues

Applications of Novel Sensors and Related Technologies for Internet of Things
Guest editor, Teen-Hang Meen (National Formosa University), Wenbing Zhao (Cleveland State University), and Cheng-Fu Yang (National University of Kaohsiung)
Call for paper


Special Issue on Advanced Data Sensing and Processing Technologies for Smart Community and Smart Life
Guest editor, Tatsuya Yamazaki (Niigata University)
Call for paper


Special Issue on Advanced Sensing Technologies and Their Applications in Human/Animal Activity Recognition and Behavior Understanding
Guest editor, Kaori Fujinami (Tokyo University of Agriculture and Technology)
Call for paper


Special Issue on International Conference on Biosensors, Bioelectronics, Biomedical Devices, BioMEMS/NEMS and Applications 2023 (Bio4Apps 2023)
Guest editor, Dzung Viet Dao (Griffith University) and Cong Thanh Nguyen (Griffith University)
Conference website
Call for paper


Special Issue on Piezoelectric Thin Films and Piezoelectric MEMS
Guest editor, Isaku Kanno (Kobe University)
Call for paper


Special Issue on Advanced Micro/Nanomaterials for Various Sensor Applications (Selected Papers from ICASI 2024)
Guest editor, Sheng-Joue Young (National United University)
Conference website
Call for paper


Copyright(C) MYU K.K. All Rights Reserved.