Abstract:Due to the constraint of imaging field of view or Xray penetration ability, computed tomography is difficult to realize nondestructive testing and quality evaluation of largescale plateshell objects. However, by improving scanning geometry adjustment and reconstruction, computed laminography (CL) provides an effective way for the internal structure analysis of plateshell objects. With the increasing demand for nondestructive testing in medical, electronic, material and other fields, CL technique has been paid much attention. Based on the nondestructive testing requirements of plateshell objects, this paper reviews the research advances of CL at home and abroad. The typical CL system structures are introduced. The analysis of CL image reconstruction algorithm and product development & application are illustrated. Finally, the application prospects and development trends of CL are forecasted.