Implementation of a parallel SAD based wavefront sensor architecture on FPGA

Zoltán Kincses, Zoltán Nagy, László Orzó, Péter Szolgay, György Mezo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Wavefront aberration caused by turbulent or rapidly changing media can considerably degrade the performance of an imaging system. Adaptive optics can dynamically compensate these wavefront distortions and so provide corrected imaging. We developed an affordable adaptive optic system which combines CMOS sensor and LCOS display technology with the FPGA devices parallel computing capabilities. High speed and accurate wavefront sensor is fundamental part of any adaptive optic system. In this paper, an efficient FPGA implementation of the Sum of Absolute Differences (SAD) algorithm is introduced which accomplish correlation based wavefront sensing. This architecture was implemented on a Spartan-3 FPGA and is capable to measure the incoming wavefront at the speed of sensor data acquisition speed.

Original languageEnglish
Title of host publicationECCTD 2009 - European Conference on Circuit Theory and Design Conference Program
Pages823-826
Number of pages4
DOIs
Publication statusPublished - Dec 10 2009
EventECCTD 2009 - European Conference on Circuit Theory and Design Conference Program - Antalya, Turkey
Duration: Aug 23 2009Aug 27 2009

Publication series

NameECCTD 2009 - European Conference on Circuit Theory and Design Conference Program

Other

OtherECCTD 2009 - European Conference on Circuit Theory and Design Conference Program
CountryTurkey
CityAntalya
Period8/23/098/27/09

Keywords

  • FPGA
  • SAD
  • Wavefront sensor

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Implementation of a parallel SAD based wavefront sensor architecture on FPGA'. Together they form a unique fingerprint.

  • Cite this

    Kincses, Z., Nagy, Z., Orzó, L., Szolgay, P., & Mezo, G. (2009). Implementation of a parallel SAD based wavefront sensor architecture on FPGA. In ECCTD 2009 - European Conference on Circuit Theory and Design Conference Program (pp. 823-826). [5275110] (ECCTD 2009 - European Conference on Circuit Theory and Design Conference Program). https://doi.org/10.1109/ECCTD.2009.5275110