Holographic Interferometry for Imaging Art Objects
摘要
The purpose of the holography is the reconstruction of the wavefronts based on their phase and amplitude distribution on a given object’s surface. Conventional approaches of holography rely on a large number of active transducers and phase shifting circuits. Since 1990 art objects like frescoes and icons have been inspected using holographic techniques. Holography is a two-step process: recording and subsequent reconstruction. A hologram is a stored representation of the phase and amplitude distribution. The reconstruction is possible in 2D and 3D