Measurement of surface form of Johannesteijsmania altifrons leaf using phase-shift fringe projection

► Fringe projection method was used to measure the surface form of a folded leaf. ► The proposed method was verified using a zigzag object in the shape of the leaf. ► The optical method enables measurement with a maximum error of 7.5%. ► The 3-D surface data can be used to model folded structures in nature.