A high-resolution 3D facial shape measurement system based on a new phase unwrapping algorithm is presented

it can be used for efficient and accurate 3D facial copy of people with eye open.It utilizes a digital-light-processing（DLP）projector to project four encoded sinious fringe images which are eye safe.A new high robust phase unwrapping algorithm is developed for the system.The codes for living human’s facial reconstruction are relative code and can not be used for the measurement matching.So one center line image with absolute phase is projected to the face.Hilditch thinning algorithm is used to get the absolute phase of the encoded center line

then the whole image absolutly phase is acquried.To demonstrate the performance of the system

a measurement device is manufactured and a living human face is measured.The results show that this system can finish projecting and capturing the stripes within one second.So this system can basically meet the strict conditions for measuring faces of living humans.