(19)
(11)
EP 0 473 661 A1
(12)
(43)
Date of publication:
11.03.1992
Bulletin 1992/11
(21)
Application number:
90908255.0
(22)
Date of filing:
24.05.1990
(51)
International Patent Classification (IPC):
G06T
7/
00
( . )
G06T
7/
40
( . )
G06T
5/
00
( . )
(86)
International application number:
PCT/GB1990/000813
(87)
International publication number:
WO 1990/014635
(
29.11.1990
Gazette 1990/27)
(84)
Designated Contracting States:
BE DE DK ES FR GB IT NL
(30)
Priority:
26.05.1989
GB 19890012226
(71)
Applicant:
NATIONAL RESEARCH DEVELOPMENT CORPORATION
London SE1 6BU (GB)
(72)
Inventors:
TILLETT, Robin Deirdre
Flitwick, Bedfordshire MK45 1AE (GB)
McFARLANE, Nigel James Bruce
Silsoe, Bedfordshire MK45 4DP (GB)
(74)
Representative:
Laight, Martin Harvey
W.H. Beck, Greener & Co. 7 Stone Buildings Lincoln's Inn
London WC2A 3SZ
London WC2A 3SZ (GB)
(54)
METHOD OF AND APPARATUS FOR PROCESSING AN IMAGE SIGNAL