tailieunhanh - báo cáo hóa học:" Research Article A System for an Accurate 3D Reconstruction in Video Endoscopy Capsule"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article A System for an Accurate 3D Reconstruction in Video Endoscopy Capsule | Hindawi Publishing Corporation EURASIP Journal on Embedded Systems Volume 2009 Article ID716317 15 pages doi 2009 716317 Research Article A System for an Accurate 3D Reconstruction in Video Endoscopy Capsule Anthony Kolar 1 Olivier Romain 1 Jade Ayoub 1 David Faura 1 Sylvain Viateur 1 Bertrand Granado 2 and Tarik Graba3 1 Departement SOC LIP6 Universite P M CURIE Paris VI Equipe SYEL 4 place Jussieu 75252 Paris France 2ETIS CNRS ENSEA Universite de Cergy-Pontoise 95000 Cergy France 3Electronique des systemes numeriques complexe Telecom ParisTech 46 rue Barrault 75252 Paris France Correspondence should be addressed to Anthony Kolar Received 15 March 2009 Revised 9 July 2009 Accepted 12 October 2009 Recommended by Ahmet T. Erdogan Since few years the gastroenterologic examinations could have been realised by wireless video capsules. Although the images make it possible to analyse some diseases the diagnosis could be improved by the use of the 3D Imaging techniques implemented in the video capsule. The work presented here is related to Cyclope an embedded active vision system that is able to give in real time both 3D information and texture. The challenge is to realise this integrated sensor with constraints on size consumption and computational resources with inherent limitation of video capsule. In this paper we present the hardware and software development of a wireless multispectral vision sensor which allows to transmit a 3D reconstruction of a scene in realtime. multispectral acquisitions grab both texture and IR pattern images at least at 25 frames s separately. The different Intellectual Properties designed allow to compute specifics algorithms in realtime while keeping accuracy computation. We present experimental results with the realization of a large-scale demonstrator using an SOPC prototyping board. Copyright 2009 Anthony Kolar et al. This is an open access article distributed under the Creative Commons Attribution License .