Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Timothy Joseph T. Abregana"'
Publikováno v:
SPIE Proceedings.
Previous implementations of the phase diffuser used in the multiple-plane phase retrieval method included a diffuser glass plate with fixed optical properties or a programmable yet expensive spatial light modulator. Here a model for phase retrieval b
Publikováno v:
Imaging and Applied Optics 2016.
A novel phase retrieval method using multiple random patterns displayed on a spatial light modulator and a fixed camera plane is demonstrated numerically.
Publikováno v:
SPIE Proceedings.
Fringe patterns carry valuable spatio-temporal information about the object being investigated. Fringe processing, however, is hampered by the presence of speckle noise which is a by-product of coherent metrology of optically rough surfaces. A speckl
Publikováno v:
ICPS 2013: International Conference on Photonics Solutions.
A technique for the localization of 3-D refractive test objects is presented. It uses the statistical behavior of axially propagated wavefronts as a metric to determine object location. The wavefront is obtained using digital holography. The wavefron
Publikováno v:
Optical Engineering. 55:121720
Speckle noise presents challenges in object localization using reconstructed wavefronts. Here, a technique for axial localization of rough test objects based on a statistical algorithm that processes volume speckle fields is demonstrated numerically