Laser-induced ultrasonic measurements for the detection and reconstruction of surface defects Feiming Qian, Guangzhen Xing, Ping Yang, Pengcheng Hu, Limin Zou and Triantafillos Koukoulas Acta Acust., 5 (2021) 38 Published online: 31 August 2021 DOI: 10.1051/aacus/2021031