Industrial Phase-Shifting Profilometry in Motion

Phase-Shift Profilometry (PSP) provides a means for dense high-quality surface scanning. However it imposes a staticity constraint: The scene is required to remain still during the acquisition of multiple images. PSP is also not applicable to dynamic scenes. On the other hand, there exist active stereo techniques which overcome these constraints but impose other limitations, for instance on the surface’s continuity or texture, or by significantly reducing the reconstruction’s resolution.