1. Inspection equipment study for subway tunnel defects by grey-scale image processing. Issue 2 (April 2017) Authors: Huang, Hongwei; Sun, Yan; Xue, Yadong; Wang, Fei Journal: Advanced engineering informatics Issue: Volume 32:Issue 2(2017:Apr.) Page Start: 188 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗