EP 0992949 A2 20000412 - People counting system by pressure images
Title (en)
People counting system by pressure images
Title (de)
System zum Zählen von Personen mit Hilfe von Druckbildern
Title (fr)
Système de comptage de personnes par images de pression
Publication
Application
Priority
ES 9801987 A 19980922
Abstract (en)
This people counting system is composed of one or more sensor surfaces each one formed by independent pressure sensible cells in a bi-dimensional matrix arrangement, and frequently installed on a small dimension stair step, capable of providing a pressure image every few milliseconds; and of one or more pressure image analysing systems capable of collecting the images generated through the sensor surfaces and, by means of image processing methods, detect the number of footprints left on every surface during each sampling period, link the footprints detected on consecutive events, determine (by their past history) their moving direction, group the possible footprints of each person and count them on the correct direction when they leave the surface. <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP)
G06M 1/108 (2013.01); G07C 9/00 (2013.01)
Citation (applicant)
- US 400400 A 18890326
- US 4122331 A 19781024 - TSUBOTA NAOKI, et al
- US 4175446 A 19791127 - BRANCH ANDREW J [US], et al
- US 4303851 A 19811201 - MOTTIER FRANCOIS M
- WO 9722089 A1 19970619 - BRIME S A [FR], et al
- WO 9723376 A1 19970703 - MAFISS LTD [IL], et al
- WO 9840719 A1 19980917 - SHAPIRA AHARON [IL]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0992949 A2 20000412; EP 0992949 A3 20010516; ES 2151844 A1 20010101; ES 2151844 B1 20010716
DOCDB simple family (application)
EP 99500166 A 19990917; ES 9801987 A 19980922