View source for Publications:Eigen-Patch Iris Super-Resolution For Iris Recognition Improvement

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{{PublicationSetupTemplate|Author=Fernando Alonso-Fernandez, Reuben A. Farrugia, Josef Bigun
|PID=819487
|Name=Alonso-Fernandez, Fernando [feralo] (Högskolan i Halmstad [2804], Akademin för informationsteknologi [16904], Halmstad Embedded and Intelligent Systems Research (EIS) [3938], CAISR Centrum för tillämpade intelligenta system (IS-lab) [13650]);Farrugia, Reuben A. (University of Malta, Msida, Malta);Bigun, Josef [josef] (Högskolan i Halmstad [2804], Akademin för informationsteknologi [16904], Halmstad Embedded and Intelligent Systems Research (EIS) [3938], CAISR Centrum för tillämpade intelligenta system (IS-lab) [13650])
|Title=Eigen-Patch Iris Super-Resolution For Iris Recognition Improvement
|PublicationType=Conference Paper
|ContentType=Refereegranskat
|Language=eng
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|Conference=23rd European Signal Processing Conference, EUSIPCO, Nice, France, 31 August–4 September, 2015
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|Year=2015
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|NBN=urn:nbn:se:hh:diva-28485
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|Keywords=Iris hallucination;iris recognition;eigen-patch;super-resolution;Principal Component Analysis
|Categories=Signalbehandling (20205)
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|Abstract=<p>Low image resolution will be a predominant factor in iris recognition systems as they evolve towards more relaxed acquisition conditions. Here, we propose a super-resolution technique to enhance iris images based on Principal Component Analysis (PCA) Eigen-transformation of local image patches. Each patch is reconstructed separately, allowing better quality of enhanced images by preserving local information and reducing artifacts. We validate the system used a database of 1,872 near-infrared iris images. Results show the superiority of the presented approach over bilinear or bicubic interpolation, with the eigen-patch method being more resilient to image resolution reduction. We also perform recognition experiments with an iris matcher based 1D Log-Gabor, demonstrating that verification rates degrades more rapidly with bilinear or bicubic interpolation.</p>
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|CreatedDate=2015-06-10
|PublicationDate=2015-06-10
|LastUpdated=2015-07-28
|diva=http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:819487}}
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