Advanced iterative algorithm for randomly phase-shifted interferograms with intra- and inter-frame intensity variations

  • Wang Z
  • Han B
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Abstract

The fundamental concept of the advanced iterative algorithm is reviewed and a detailed procedure for implementation is presented. Computer simulations are conducted to evaluate its performance for truly random phase-shifted interferograms with intra- and inter-frame intensity variations. The algorithm is implemented for random phase shifts encountered during thermal warpage measurement of a microelectronics subassembly subjected to convective thermal loading. © 2006 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • Advanced iterative algorithm
  • Intensity variations
  • Phase shifting technique
  • Random phase shifts

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