(19)

(11)

EP 1 292 915 A1

(12)

(43) Date of publication: 19.03.2003 Bulletin 2003/12 (21) Application number: 01936485.0 (22) Date of filing: 22.05.2001

(51) International Patent Classification (IPC)7: G06N 3/063, G06T 1/40 (86) International application number: PCT/FI0100/496 (87) International publication number: WO 0109/1049 (29.11.2001 Gazette 2001/48)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 22.05.2000 FI 20001221 (71) Applicants: Paasio, Ari 20660 Littoinen (FI) Kananen, Asko 00810 Helsinki (FI)	(72) Inventors: Paasio, Ari 20660 Littoinen (FI) Kananen, Asko 00810 Helsinki (FI) (74) Representative: Kärkkäinen, Veli-Matti et al Borenius & Co Oy AbTallberginkatu 2 A 00180 Helsinki 00180 Helsinki (FI)