the 30th anniversary of the initial meeting in Tifton, Georgia, USA on 1986. The conference
has been being a bi-annual event and has been hosted by sixteen cities from four
continents. Throughout these 30 years, researchers and practitioners witnessed the analog
paper printout to digital era that enables very efficient collection, processing and 3D imaging
of large amount of data required in GPR imaging in infrastructure. GPR has systematically …