Title:
VIDEO IMAGING SYSTEMS
Document Type and Number:
WIPO Patent Application WO1998008208
Kind Code:
A3
Abstract:
Flow of traffic through an area is monitored by producing a video image of the area using a camera (10), dividing the video image into a matrix of pixels (23), sampling the pixels (23) of the whole video image at low resolution to detect changes in the pixels (23) which will indicate an object of interest and sampling the pixels of a local area (25) of the video image centred on said object of interest, at high resolution to detect the size of the object of interest and its direction of movement. 00000
Inventors:
BARNES BRIAN SAMUEL (GB)
Application Number:
PCT/GB1997/002013
Publication Date:
July 16, 1998
Filing Date:
July 28, 1997
Export Citation:
Assignee:
FOOTFALL LTD (GB)
BARNES BRIAN SAMUEL (GB)
BARNES BRIAN SAMUEL (GB)
International Classes:
G06K9/32; G07C9/00; G08G1/04; (IPC1-7): G08G1/04
Domestic Patent References:
| WO1994027408A1 | 1994-11-24 | |||
| WO1982001454A1 | 1982-04-29 |
Foreign References:
| US5097328A | 1992-03-17 | |||
| US5134472A | 1992-07-28 | |||
| EP0671706A2 | 1995-09-13 | |||
| EP0465375A2 | 1992-01-08 | |||
| EP0528105A1 | 1993-02-24 | |||
| US5177794A | 1993-01-05 | |||
| GB2282294A | 1995-03-29 | |||
| US4254400A | 1981-03-03 |
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