Implementation of the opensurf algorithm in field programmable gate arrayshttp://www.library.tuc.gr/artemis/DT2010-0071/DT2010-0071.pdfhttp://purl.tuc.gr/dl/dias/D12AA4F9-884E-49CF-B0C3-826CF910ABD5Implementation of the opensurf algorithm in field programmable gate arraysfree2014-03-24application/pdf