Image-based registration for synthetic aperture holography.


Journal Article

High pixel count apertures for digital holography may be synthesized by scanning smaller aperture detector arrays. Characterization and compensation for registration errors in the detector array position and pitch and for phase instability between the reference and object field is a major challenge in scanned systems. We use a secondary sensor to monitor phase and image-based registration parameter estimators to demonstrate near diffraction-limited resolution from a 63.4 mm aperture synthesized by scanning a 5.28 mm subaperture over 144 transverse positions. We demonstrate 60 μm resolution at 2 m range.

Full Text

Duke Authors

Cited Authors

  • Lim, S; Choi, K; Hahn, J; Marks, DL; Brady, DJ

Published Date

  • June 2011

Published In

Volume / Issue

  • 19 / 12

Start / End Page

  • 11716 - 11731

PubMed ID

  • 21716403

Pubmed Central ID

  • 21716403

Electronic International Standard Serial Number (EISSN)

  • 1094-4087

International Standard Serial Number (ISSN)

  • 1094-4087

Digital Object Identifier (DOI)

  • 10.1364/oe.19.011716


  • eng