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(11)

EP 2 143 069 A1

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(43) Date of publication: 13.01.2010 Bulletin 2010/02 (21) Application number: 07723937.4 (22) Date of filing: 03.04.2007

(51) International Patent Classification (IPC):  G06T 5/00(2006.01) (86) International application number: PCT/EP2007/002996 (87) International publication number: WO 2008/119368 (09.10.2008 Gazette 2008/41)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR (71) Applicants: Telecom Italia S.p.A. 20123 Milano (IT) Università Degli Studi Di Milano - Bicocca 20126 Milano (IT)	(72) Inventors: CUSANO, Claudio I-20126 Milano (IT) GASPARINI, Francesca I-20126 Milano (IT) SCHETTINI, Raimondo I-20126 Milano (IT) GALLINA, Paolo I-10010 Scarmagno (IT) (74) Representative: Maccalli, Marco et al Maccalli & Pezzoli S.r.l., Via Settembrini, 40 20124 Milano 20124 Milano (IT)