A novel dynamical 3D smile measurement method to evaluate the effects of face-lifting surgery: Based on the optical structured light strategy

Based on the results, our dynamical optical smile measurement shows enough high accuracy of in acquiring the moving information of every point on smile face. No secondary pollution would happen in the measurement technique with no touching or contacting the surgery area, which thus might induce a safer and cleaner way for the clinical evaluation of the face-lifting surgery with high spatial and temporal resolution.