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Zeitschriftenartikel:

M. Thier, R. Paris, T. Thurner, G. Schitter:
"Low-Latency Shack Hartmann Wavefront Sensor Based on an Industrial Smart Camera";
IEEE Transactions on Instrumentation and Measurement, 62 (2013), 5; S. 1241 - 1249.



Kurzfassung englisch:
Wavefront sensing is important in various optical
measurement systems, particularly in the field of adaptive optics
(AO). For AO systems, the sampling rate, as well as the latency
time, of the wavefront sensors (WFSs) imposes a restriction on the
overall achievable temporal resolution. In this paper, we propose
a versatile Shack-Hartmann WFS based on an industrial smart
camera for high-performance measurements of wavefront deformations,
using a low-cost field-programmable gate array as the
parallel processing platform. The proposed wavefront reconstruction
adds a processing latency of only 740 ns for calculating wavefront
characteristics from the pixel stream of the image sensor,
providing great potential for demanding AO system designs.

Schlagworte:
Algorithms, cameras, field-programmable gate arrays (FPGAs), image sensors, optical distortion.


"Offizielle" elektronische Version der Publikation (entsprechend ihrem Digital Object Identifier - DOI)
http://dx.doi.org/10.1109/TIM.2012.2223333


Erstellt aus der Publikationsdatenbank der Technischen Universitšt Wien.