High-resolution volume holographic profilometry using the Viterbi algorithm.
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.
Department of Mechanical Engineering, Room 3-471c, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA.
Wenyang
W
Sun
Arnab
A
Sinha
George
G
Barbastathis
Mark A
MA
Neifeld