TY - GEN
T1 - Development of a change-detection method on underground air void identification by time-lapse GPR 3D imaging
AU - Luo, Tess Xiang Huan
AU - Lai, Wallace Wai Lok
AU - Chang, Ray Kwong Wai
PY - 2018/8/20
Y1 - 2018/8/20
N2 - This study reviews the parameters that affect GPR 3D imaging quality and proposed a guideline for establishing time-lapse GPR slice generation to detect air voids. A lab control experiment was conducted with mutual information applied to evaluating the reliability of proposed imaging workflow. Reflectance thresholding and structural similarity were explored in identifying air voids from time-lapse GPR slice series and got promising result. It was found that variation of GPR slice images come from ununiform reflection intensity. Image change detection method is feasible in extracting features from speckled GPR time lapse slices. And a more convincible GPR slice generation workflow contributes to more accurate temporal feature extraction from GPR time lapse slice.
AB - This study reviews the parameters that affect GPR 3D imaging quality and proposed a guideline for establishing time-lapse GPR slice generation to detect air voids. A lab control experiment was conducted with mutual information applied to evaluating the reliability of proposed imaging workflow. Reflectance thresholding and structural similarity were explored in identifying air voids from time-lapse GPR slice series and got promising result. It was found that variation of GPR slice images come from ununiform reflection intensity. Image change detection method is feasible in extracting features from speckled GPR time lapse slices. And a more convincible GPR slice generation workflow contributes to more accurate temporal feature extraction from GPR time lapse slice.
KW - GPR
KW - slice quality
KW - temporal change detection
UR - http://www.scopus.com/inward/record.url?scp=85053385460&partnerID=8YFLogxK
U2 - 10.1109/ICGPR.2018.8441553
DO - 10.1109/ICGPR.2018.8441553
M3 - Conference article published in proceeding or book
AN - SCOPUS:85053385460
SN - 9781538657775
T3 - 2018 17th International Conference on Ground Penetrating Radar, GPR 2018
BT - 2018 17th International Conference on Ground Penetrating Radar, GPR 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 17th International Conference on Ground Penetrating Radar, GPR 2018
Y2 - 18 June 2018 through 21 June 2018
ER -