| Popis: |
This chapter is designed to provide to the reader an overview of digital image processing of holographic interferograms. It deals primarily with the quantitative determination of the interference phase from the digitally recorded and stored interferograms, and related aspects like suppression of systematic and statistical errors. Digital image processing and the physical theory of holographic interferometry is treated briefly and only as far as it is needed for the description of quantitative evaluation. The same holds for the treatment concerning further processing of the evaluated phase data like derivation of deformation fields, strain and stress analysis, structural analysis methods, or computer tomography for the determination of refractive-index fields. This brief introduction on fringe-pattern processing should stimulate further studies of the related literature and encourage developments in this field. A more detailed treatment would go beyond the scope of this chapter. |
