Ultrafast Holographic Topometry for Medical Applications

摘要

We present pulsed holographic topometry for medical purposes. Portrait holograms are recorded with a ultra fast pulsed, frequency-doubled Nd:YLF laser. The off-axis object beam for recording is modulated by a grid, resulting in high-contrast fringes on the object surface. This allows precise, three-dimensional localization of the real image of the surface. The real image of the hologram is reconstructed optically and digitized to render the representation of the skin surface as a computer model. 3D reconstructions of human faces are textured with digital photographic images.