Access to eBooks is limited to institutions that have purchased or currently subscribe to the SPIE eBooks program. eBooks are not available via an individual subscription. SPIE books (print and digital) may be purchased individually on SPIE.Org.

Contact your librarian to recommend SPIE eBooks for your organization.
Translator Disclaimer
Chapter 5:
Digital Holographic Interferometry and Phase-Shifting Digital Holography
If the holograms of the object are digitally recorded using a CCD camera and they are compared by computing the phase difference of the digitally reconstructed images, then the process is called digital holographic interferometry (DHI). In current technology, commercial CCD cameras have pixel sizes around 5 mm, which can sometimes limit the spatial resolution required for large off-axis angles (,2 deg), which, in practice, limits DH to inline or near-inline configurations. In DHI, the recorded holograms are individually reconstructed by numerical methods, and the experimental setup is simpler compared to AHI. Due to the numerical reconstruction process, the interference phase, which represents the deformation field, can be calculated by subtracting the reconstructed phases of the undeformed and deformed object waves. Thus, there is no need to generate a macroscopic interference pattern. Additionally, the interference phase in DHI can be determined without sign ambiguity.
Online access to SPIE eBooks is limited to subscribing institutions.

Back to Top