Gradient cross-correlation algorithm for scene-based Shack-Hartmann wavefront sensing

Scene-based wavefront sensing currently uses the periodic-correlation algorithm based on fast Fourier transforms. However, when the object scene contains features at the field edges, the performance of the algorithm is poor due to the periodicity of fast Fourier transforms, called wraparound effect....

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Veröffentlicht in:	Optics express 2018-06, Vol.26 (13), p.17549-17562
Hauptverfasser:	Wang, Y, Chen, X, Cao, Z, Zhang, X, Liu, C, Mu, Q
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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