A Novel method for Human Expression Rapid Reconstruction

摘要

Human expression rapid reconstruction has huge potential applications in entertainment and social security. In this work, a rapid human expression measurement system based on a digital fringe projection and phase-shifting technique is developed. The measurement system consists of a digital light processing (DLP) projector and a high-speed CCD camera. The DLP projector is used to project computer-generated fringe patterns onto the human face, and the high-speed CCD camera synchronized with the projector to acquire the fringe images at a frame rate of 30 frames/s. Based on a three-step phase-shifting method and an accurate phase-height mapping algorithm, each frame of the 3-D human expression can be reconstructed.The principle of the proposed method is described and some experimental results are presented to demonstrate its performance. The experiment results show that the measurement system can reconstruct accurate 3D human expression at a frame rate of 10 frames per second. An obvious merit of this method is that it can reconstruct the 3D human expression in a very short time and it's not sensitive to the movement of the face during the measurement processing.