Combining three wavelength illumination and parallel phase shift interferometry for high-speed high-resolution and real-time motion tracking and 3D imaging (Confe... Conference Paper uri icon

abstract

  • Phase based imaging and sensing have been for decades effective optical methodologies for high resolution surface profiling. Several techniques for acquiring the phase information encoding the surface topography have been developed; the most prominent is phase shift interferometry (PSI) in which several phase shifted interference images are usually acquired in a sequence and are algebraically combined to extract the phase information. However, phase imaging is limited both by the 2π phase modulo limiting the ability to map …

publication date

  • September 25, 2017