High-resolution volume holographic profilometry using the Viterbi algorithm

Wenyang Sun, Arnab Sinha, George Barbastathis, Mark A. Neifeld

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We use the Viterbi decoding algorithm to resolve depth features beyond the nominal resolution limit of a volume holographic profilometry system. The formulation treats the truncated point-spread function as an intersymbol interference and uses surface constraints and transition constraints to reduce the computational complexity. A factor-of-5 improvement in resolution was obtained in our experimental demonstration.

Original languageEnglish (US)
Pages (from-to)1297-1299
Number of pages3
JournalOptics letters
Issue number11
StatePublished - Jun 1 2005

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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