Abstract: A method for reconstructing a digital hologram of a surface having at least one three- dimensional feature thereon, including acquiring a digital hologram of the surface, reconstructing a wavefront based on the digital hologram, generating a phase map of at least a portion of the surface based on the wavefront, the phase map including phase ambiguities, obtaining at least one additional image of the surface, obtaining height data relating to the three-dimensional feature from the at least one additional image of the surface, the height data being obtained with a first precision, resolving the phase ambiguities based on the height data and deriving a height of the at least one three- dimensional feature based on the phase map following the resolving of the phase ambiguities therein, the height being derived with a second precision more precise than the first precision.

Abstract: The present invention relates to a new interferometric module which may be implemented as holographic/interferometric portable optical setups that are based on the interferometry with multiple wavelengths acquired simultaneously, without changing the imaging parameters, such as the magnification and the resolution, and recording the quantitative complex wave front (i.e. amplitude and phase) imaging in several wavelengths simultaneously. This may be used for multiple-wavelength phase unwrapping, for recording higher or optically thicker samples or for spectroscopic holography, without loss of camera frame rate due to wavelength scanning.

Abstract: The present invention relates to a new interferometric module which may be implemented as holographic/interferometric portable optical setups that are based on the interferometry with multiple wavelengths acquired simultaneously, without changing the imaging parameters, such as the magnification and the resolution, and recording the quantitative complex wave front (i.e. amplitude and phase) imaging in several wavelengths simultaneously. This may be used for multiple-wavelength phase unwrapping, for recording higher or optically thicker samples or for spectroscopic holography, without loss of camera frame rate due to wavelength scanning.