An Efficient Pipeline Wavefront Phase Recovery for the CAFADIS Camera for Extremely Large Telescopes
In this paper we show a fast, specialized hardware implementation of the wavefront phase recovery algorithm using the CAFADIS camera. The CAFADIS camera is a new plenoptic sensor patented by the Universidad de La Laguna (Canary Islands, Spain): international patent PCT/ES2007/000046 (WIPO publicatio...
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doaj-053ffe85b7204d0e9ede61f0abb194192020-11-25T00:40:32ZengMDPI AGSensors1424-82202009-12-0110111510.3390/s100100001An Efficient Pipeline Wavefront Phase Recovery for the CAFADIS Camera for Extremely Large TelescopesEduardo MagdalenoManuel RodríguezJosé Manuel Rodríguez-RamosIn this paper we show a fast, specialized hardware implementation of the wavefront phase recovery algorithm using the CAFADIS camera. The CAFADIS camera is a new plenoptic sensor patented by the Universidad de La Laguna (Canary Islands, Spain): international patent PCT/ES2007/000046 (WIPO publication number WO/2007/082975). It can simultaneously measure the wavefront phase and the distance to the light source in a real-time process. The pipeline algorithm is implemented using Field Programmable Gate Arrays (FPGA). These devices present architecture capable of handling the sensor output stream using a massively parallel approach and they are efficient enough to resolve several Adaptive Optics (AO) problems in Extremely Large Telescopes (ELTs) in terms of processing time requirements. The FPGA implementation of the wavefront phase recovery algorithm using the CAFADIS camera is based on the very fast computation of two dimensional fast Fourier Transforms (FFTs). Thus we have carried out a comparison between our very novel FPGA 2D-FFTa and other implementations. http://www.mdpi.com/1424-8220/10/1/1/plenoptic sensorswavefront sensorsadaptive opticsreal-time processingFPGA |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Eduardo Magdaleno Manuel Rodríguez José Manuel Rodríguez-Ramos |
spellingShingle |
Eduardo Magdaleno Manuel Rodríguez José Manuel Rodríguez-Ramos An Efficient Pipeline Wavefront Phase Recovery for the CAFADIS Camera for Extremely Large Telescopes Sensors plenoptic sensors wavefront sensors adaptive optics real-time processing FPGA |
author_facet |
Eduardo Magdaleno Manuel Rodríguez José Manuel Rodríguez-Ramos |
author_sort |
Eduardo Magdaleno |
title |
An Efficient Pipeline Wavefront Phase Recovery for the CAFADIS Camera for Extremely Large Telescopes |
title_short |
An Efficient Pipeline Wavefront Phase Recovery for the CAFADIS Camera for Extremely Large Telescopes |
title_full |
An Efficient Pipeline Wavefront Phase Recovery for the CAFADIS Camera for Extremely Large Telescopes |
title_fullStr |
An Efficient Pipeline Wavefront Phase Recovery for the CAFADIS Camera for Extremely Large Telescopes |
title_full_unstemmed |
An Efficient Pipeline Wavefront Phase Recovery for the CAFADIS Camera for Extremely Large Telescopes |
title_sort |
efficient pipeline wavefront phase recovery for the cafadis camera for extremely large telescopes |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2009-12-01 |
description |
In this paper we show a fast, specialized hardware implementation of the wavefront phase recovery algorithm using the CAFADIS camera. The CAFADIS camera is a new plenoptic sensor patented by the Universidad de La Laguna (Canary Islands, Spain): international patent PCT/ES2007/000046 (WIPO publication number WO/2007/082975). It can simultaneously measure the wavefront phase and the distance to the light source in a real-time process. The pipeline algorithm is implemented using Field Programmable Gate Arrays (FPGA). These devices present architecture capable of handling the sensor output stream using a massively parallel approach and they are efficient enough to resolve several Adaptive Optics (AO) problems in Extremely Large Telescopes (ELTs) in terms of processing time requirements. The FPGA implementation of the wavefront phase recovery algorithm using the CAFADIS camera is based on the very fast computation of two dimensional fast Fourier Transforms (FFTs). Thus we have carried out a comparison between our very novel FPGA 2D-FFTa and other implementations. |
topic |
plenoptic sensors wavefront sensors adaptive optics real-time processing FPGA |
url |
http://www.mdpi.com/1424-8220/10/1/1/ |
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