Hartmann–Shack wavefront reconstruction with bitmap image processing

Vitalii Bezzubik, Nikolai Belashenkov, Oleg Soloviev, Vladimir Vasilyev, Gleb Vdovin*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review


In this Letter, we report on an algorithm and its implementation to reconstruct the wavefront as a continuous function from a bitmap image of the Hartmann–Shack pattern. The approach works with arbitrary raster geometry and does not require explicit spot definition and phase unwrapping. The system matrix, defining the coefficients of wavefront decomposition in the system of basis functions, is obtained as a result of a series of convolutions and thresholding operations on the reference and sample images.

Original languageEnglish
Pages (from-to)972-975
JournalOptics Letters
Issue number4
Publication statusPublished - 2020


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