EP0847030A3 - A method and device for automatically detecting and counting bodies passing through a gap - Google Patents

A method and device for automatically detecting and counting bodies passing through a gap Download PDF

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Publication number
EP0847030A3
EP0847030A3 EP97121056A EP97121056A EP0847030A3 EP 0847030 A3 EP0847030 A3 EP 0847030A3 EP 97121056 A EP97121056 A EP 97121056A EP 97121056 A EP97121056 A EP 97121056A EP 0847030 A3 EP0847030 A3 EP 0847030A3
Authority
EP
European Patent Office
Prior art keywords
gap
passing
automatically detecting
counting
bodies passing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97121056A
Other languages
German (de)
French (fr)
Other versions
EP0847030A2 (en
Inventor
Massimo Boninsegna
Antonio Virdia
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Istituto Trentino di Cultura
Advaxia Biologics SRL
Original Assignee
Istituto Trentino di Cultura
Advent SRL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Istituto Trentino di Cultura, Advent SRL filed Critical Istituto Trentino di Cultura
Publication of EP0847030A2 publication Critical patent/EP0847030A2/en
Publication of EP0847030A3 publication Critical patent/EP0847030A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Image Analysis (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

A method for automatically detecting and counting bodies passing through a gap (A) includes the steps of monitoring the gap (A) with means for generating image signals (3; 4, 9) to obtain a succession of images (4a, 4b; L0, L1, ..., LN) of each body (B) passing through the gap (A), of processing these images (4a, 4b; L0, L1, ..., LN) to obtain an altimetric map for each body (B) passing through the gap (A) for each moment considered, of comparing at least one altimetric map obtained with at least one model of altimetric map stored in a processing unit (5), and of activating a counting procedure depending on the result of the comparison.
EP97121056A 1996-12-04 1997-12-01 A method and device for automatically detecting and counting bodies passing through a gap Withdrawn EP0847030A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO960984 1996-12-04
ITTO960984 IT1289712B1 (en) 1996-12-04 1996-12-04 PROCEDURE AND DEVICE FOR THE DETECTION AND AUTOMATIC COUNTING OF BODIES CROSSING A GATE

Publications (2)

Publication Number Publication Date
EP0847030A2 EP0847030A2 (en) 1998-06-10
EP0847030A3 true EP0847030A3 (en) 1999-12-01

Family

ID=11415077

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97121056A Withdrawn EP0847030A3 (en) 1996-12-04 1997-12-01 A method and device for automatically detecting and counting bodies passing through a gap

Country Status (2)

Country Link
EP (1) EP0847030A3 (en)
IT (1) IT1289712B1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2800895B1 (en) * 1999-11-09 2001-12-28 Renault Vehicules Ind BUS PASSENGER COUNTING SYSTEM AND METHOD
US6701005B1 (en) 2000-04-29 2004-03-02 Cognex Corporation Method and apparatus for three-dimensional object segmentation
DE50111648D1 (en) * 2001-10-25 2007-01-25 Skidata Ag Access control device
WO2003088157A1 (en) * 2002-04-08 2003-10-23 Newton Security Inc. Tailgating and reverse entry detection, alarm, recording and prevention using machine vision
US7920718B2 (en) 2002-09-05 2011-04-05 Cognex Corporation Multi-zone passageway monitoring system and method
US7400744B2 (en) 2002-09-05 2008-07-15 Cognex Technology And Investment Corporation Stereo door sensor
US7397929B2 (en) 2002-09-05 2008-07-08 Cognex Technology And Investment Corporation Method and apparatus for monitoring a passageway using 3D images
US7623674B2 (en) 2003-11-05 2009-11-24 Cognex Technology And Investment Corporation Method and system for enhanced portal security through stereoscopy
US8326084B1 (en) 2003-11-05 2012-12-04 Cognex Technology And Investment Corporation System and method of auto-exposure control for image acquisition hardware using three dimensional information
US7692684B2 (en) 2004-09-27 2010-04-06 Point Grey Research Inc. People counting systems and methods
US8111904B2 (en) 2005-10-07 2012-02-07 Cognex Technology And Investment Corp. Methods and apparatus for practical 3D vision system
US8126260B2 (en) 2007-05-29 2012-02-28 Cognex Corporation System and method for locating a three-dimensional object using machine vision
FR2945652B1 (en) * 2009-05-14 2013-07-19 Inrets Inst Nat De Rech Sur Les Transports Et Leur Securite SYSTEM FOR COUNTING PEOPLE.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0317026A1 (en) * 1987-11-17 1989-05-24 Heineken Technical Services B.V. A method of counting articles supplied on a conveyor track in a random pattern
EP0561071A2 (en) * 1992-03-20 1993-09-22 Quadrix Corporation Person and object recognition system
DE4411448A1 (en) * 1994-03-31 1995-10-05 Sick Optik Elektronik Erwin Monitoring method for detecting person or vehicle in defined area
DE19516662A1 (en) * 1995-05-05 1996-11-14 Fraunhofer Ges Forschung Identification method for three-dimensional objects

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0317026A1 (en) * 1987-11-17 1989-05-24 Heineken Technical Services B.V. A method of counting articles supplied on a conveyor track in a random pattern
EP0561071A2 (en) * 1992-03-20 1993-09-22 Quadrix Corporation Person and object recognition system
DE4411448A1 (en) * 1994-03-31 1995-10-05 Sick Optik Elektronik Erwin Monitoring method for detecting person or vehicle in defined area
DE19516662A1 (en) * 1995-05-05 1996-11-14 Fraunhofer Ges Forschung Identification method for three-dimensional objects

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MECOCCI A ET AL: "IMAGE SEQUENCE ANALYSIS FOR COUNTING IN REAL TIME PEOPLE GETTING INAND OUT OF A BUS", SIGNAL PROCESSING EUROPEAN JOURNAL DEVOTED TO THE METHODS AND APPLICATIONS OF SIGNAL PROCESSING, VOL. 35, NR. 2, PAGE(S) 105 - 116, ISSN: 0165-1684, XP000435716 *
NAKAMURA J ET AL: "ALGORITHM FOR COUNTING THE NUMBER OF PERSONS USING IR IMAGE PROCESSING", PROCEEDINGS OF THE INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE, ADVANCED TECHNOLOGIES IN I & M HAMAMATSU, MAY 10 - 12, 1994, VOL. VOL. 1, NR. CONF. 10, PAGE(S) 220 - 223, INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS, ISBN: 0-7803-1881-1, XP000507293 *

Also Published As

Publication number Publication date
EP0847030A2 (en) 1998-06-10
ITTO960984A1 (en) 1998-06-04
IT1289712B1 (en) 1998-10-16

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