WO2008142238A3 - Method of determining the number of objects present in a given surface region by infrared thermography - Google Patents

Method of determining the number of objects present in a given surface region by infrared thermography Download PDF

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Publication number
WO2008142238A3
WO2008142238A3 PCT/FR2008/000426 FR2008000426W WO2008142238A3 WO 2008142238 A3 WO2008142238 A3 WO 2008142238A3 FR 2008000426 W FR2008000426 W FR 2008000426W WO 2008142238 A3 WO2008142238 A3 WO 2008142238A3
Authority
WO
WIPO (PCT)
Prior art keywords
objects
determining
surface region
grid unit
grid
Prior art date
Application number
PCT/FR2008/000426
Other languages
French (fr)
Other versions
WO2008142238A2 (en
Inventor
David Morio
Original Assignee
Dgm Technologies
David Morio
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 Dgm Technologies, David Morio filed Critical Dgm Technologies
Publication of WO2008142238A2 publication Critical patent/WO2008142238A2/en
Publication of WO2008142238A3 publication Critical patent/WO2008142238A3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/08—Design features of general application for actuating the drive
    • G06M1/10—Design features of general application for actuating the drive by electric or magnetic means
    • G06M1/101—Design features of general application for actuating the drive by electric or magnetic means by electro-optical means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M11/00—Counting of objects distributed at random, e.g. on a surface
    • 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
    • G07C11/00—Arrangements, systems or apparatus for checking, e.g. the occurrence of a condition, not provided for elsewhere
    • 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
    • G07C11/00—Arrangements, systems or apparatus for checking, e.g. the occurrence of a condition, not provided for elsewhere
    • G07C2011/02—Arrangements, systems or apparatus for checking, e.g. the occurrence of a condition, not provided for elsewhere related to amusement parks

Abstract

The invention relates to a method of determining the number of objects of a given time present in a given surface region using an infrared camera 3, comprising the following steps: a) acquisition of an image using an infrared camera 3; b) subdivision of the target region 1 into a plurality of grid units 6; c) calculation for each grid unit 6 of its average temperature TM; d) comparison, for each grid unit 6, of this average temperature TM with a prechosen reference temperature TS; e) determination, for each grid unit 6, of the difference between the temperatures TM and TS; f) determination of the number N of what are called “relevant” grid units having a difference between the temperatures TM and TS of greater than a reference value chosen beforehand according to the type of object; and g) multiplication of the number N by a predetermined coefficient, which expresses the average density of objects of a given type in a relevant grid unit, so as to obtain the number of objects of a given type present in the target region 1.
PCT/FR2008/000426 2007-03-29 2008-03-28 Method of determining the number of objects present in a given surface region by infrared thermography WO2008142238A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR0702295A FR2914461A1 (en) 2007-03-29 2007-03-29 METHOD FOR DETERMINING THE NUMBER OF OBJECTS PRESENT IN A SURFACE AREA GIVEN BY INFRARED THERMOGRAPHY
FR0702295 2007-03-29
FR0703711A FR2914462A1 (en) 2007-03-29 2007-05-25 Object e.g. car, number determining method for e.g. bus station, involves multiplying number of griding units having temperature difference greater than reference value by determined coefficient to obtain number of objects
FR0703711 2007-05-25

Publications (2)

Publication Number Publication Date
WO2008142238A2 WO2008142238A2 (en) 2008-11-27
WO2008142238A3 true WO2008142238A3 (en) 2009-02-19

Family

ID=39027477

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2008/000426 WO2008142238A2 (en) 2007-03-29 2008-03-28 Method of determining the number of objects present in a given surface region by infrared thermography

Country Status (2)

Country Link
FR (2) FR2914461A1 (en)
WO (1) WO2008142238A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012170953A2 (en) * 2011-06-10 2012-12-13 Flir Systems, Inc. Systems and methods for intelligent monitoring of thoroughfares using thermal imaging
EP3098785B1 (en) 2015-05-29 2019-07-10 CRTL4 Enviro, S.L. System and method for controlling operating conditions of a means of transport
CN107452108B (en) * 2017-07-31 2020-07-07 海麟文博（厦门）文物预防性保护技术有限公司 Museum intelligent exhibition participation system based on local temperature and humidity real-time regulation and control and intelligent monitoring method
CN115421046B (en) * 2022-09-16 2023-11-03 广东邦普循环科技有限公司 Gradient utilization screening method, device and equipment for power battery and storage medium

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5097328A (en) * 1990-10-16 1992-03-17 Boyette Robert B Apparatus and a method for sensing events from a remote location
US5995900A (en) * 1997-01-24 1999-11-30 Grumman Corporation Infrared traffic sensor with feature curve generation
US6195121B1 (en) * 1996-08-08 2001-02-27 Ncr Corporation System and method for detecting and analyzing a queue
EP1100050A1 (en) * 1999-11-09 2001-05-16 Renault V.I. System and method of counting passengers for buses
WO2005038717A2 (en) * 2003-10-10 2005-04-28 Intellivid Corporation Method of counting objects in a monitored environment and apparatus for the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5097328A (en) * 1990-10-16 1992-03-17 Boyette Robert B Apparatus and a method for sensing events from a remote location
US6195121B1 (en) * 1996-08-08 2001-02-27 Ncr Corporation System and method for detecting and analyzing a queue
US5995900A (en) * 1997-01-24 1999-11-30 Grumman Corporation Infrared traffic sensor with feature curve generation
EP1100050A1 (en) * 1999-11-09 2001-05-16 Renault V.I. System and method of counting passengers for buses
WO2005038717A2 (en) * 2003-10-10 2005-04-28 Intellivid Corporation Method of counting objects in a monitored environment and apparatus for the same

Also Published As

Publication number Publication date
WO2008142238A2 (en) 2008-11-27
FR2914461A1 (en) 2008-10-03
FR2914462A1 (en) 2008-10-03

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