Igor Gurov, Vlada Kapranova, ITMO University, St. Petersburg. Russia.
High-speed processing algorithm to evaluate low-coherence fringe envelope is considered. The algorithm is based on the so called Teager Energy Operator that enables to recover fringe envelope without a priori knowledge of the carrier fringe frequency. The suggested modified Teager-Kaiser algorithm includes an additional filtering procedure providing stability of the fringe envelope assessment in the areas of small fringe signal value. The algorithm can be used in low-coherence profilometry and correlation optical coherence tomography.
Dr. Georgy Garifovich Akchurin
Saratov State University, Institute of Precision Mechanics and Control, RAS
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