Vietnam National University, Hanoi University of Engineering and Technology Advanced Institute of Engineering and Technology Technical Report UET-AVITECH-2021001 Towards Vision-based Concrete Crack Detection: Automatic Simulation of Real-world Cracks Tran Hiep Dinh, Vu Thi Thuy Anh, TruongGiang Nguyen, Cong Hieu Le, Nguyen Linh Trung, Dinh Duc Nguyen, Chin-Teng Lin This work has been submitted to the IEEE for possible publication. Copyright may be transferred without notice, after which this version may no longer be accessible. Corresponding author: Tran Hiep Dinh