FR3118522B1 - METHOD AND SYSTEM FOR DETECTING A STATIC OBJECT IN AN ENVIRONMENT MONITORED BY AT LEAST ONE CAMERA - Google Patents

METHOD AND SYSTEM FOR DETECTING A STATIC OBJECT IN AN ENVIRONMENT MONITORED BY AT LEAST ONE CAMERA Download PDF

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Publication number
FR3118522B1
FR3118522B1 FR2014290A FR2014290A FR3118522B1 FR 3118522 B1 FR3118522 B1 FR 3118522B1 FR 2014290 A FR2014290 A FR 2014290A FR 2014290 A FR2014290 A FR 2014290A FR 3118522 B1 FR3118522 B1 FR 3118522B1
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FR
France
Prior art keywords
image
camera
detecting
processed
observed scene
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.)
Active
Application number
FR2014290A
Other languages
French (fr)
Other versions
FR3118522A1 (en
Inventor
Decroix Dominique Martin
Andrei Stoian
Tom Escoffier
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.)
Thales SA
Original Assignee
Thales SA
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 Thales SA filed Critical Thales SA
Priority to FR2014290A priority Critical patent/FR3118522B1/en
Priority to EP21847698.4A priority patent/EP4272159A1/en
Priority to PCT/EP2021/087706 priority patent/WO2022144346A1/en
Publication of FR3118522A1 publication Critical patent/FR3118522A1/en
Application granted granted Critical
Publication of FR3118522B1 publication Critical patent/FR3118522B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/20—Analysis of motion
    • G06T7/254—Analysis of motion involving subtraction of images
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/11—Region-based segmentation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/50—Context or environment of the image
    • G06V20/52—Surveillance or monitoring of activities, e.g. for recognising suspicious objects
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/103—Static body considered as a whole, e.g. static pedestrian or occupant recognition
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
    • G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
    • G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
    • G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/08—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using communication transmission lines
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20084—Artificial neural networks [ANN]
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20212—Image combination
    • G06T2207/20224—Image subtraction
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30108—Industrial image inspection
    • G06T2207/30112—Baggage; Luggage; Suitcase
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30232—Surveillance

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Multimedia (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Human Computer Interaction (AREA)
  • Image Analysis (AREA)
  • Alarm Systems (AREA)

Abstract

Procédé et système de détection d’un objet statique dans un environnement surveillé par au moins une caméra Ce procédé comporte : une étape (110) d’acquisition par une caméra d’un flux d’images, chaque image étant indexée par une date et correspondant à l’observation d’une scène de l’environnement ; puis, pour chaque image, une étape (120) de prétraitement consistant à : soustraire (122), de l’image considérée, une image du fond de la scène observée, pour obtenir une image de formes ; isoler (124), dans l’image considérée, une silhouette pour chaque personne présente dans la scène observée, pour obtenir une image de silhouettes ; et, combiner (126) l’image de formes et l’image de silhouettes pour obtenir une image traitée, ne comportant que des objets présents dans la scène observée, et enfin, sur une succession temporelle d’images traitées, une étape (130) consistant à suivre d’une image traitée à l’autre chaque objet et à émettre une alerte dès qu’un objet est identifié comme étant statique durant la fenêtre temporelle de détection. Figure pour l'abrégé : Figure 2Method and system for detecting a static object in an environment monitored by at least one camera This method comprises: a step (110) of acquisition by a camera of a stream of images, each image being indexed by a date and corresponding to the observation of an environmental scene; then, for each image, a pre-processing step (120) consisting in: subtracting (122), from the considered image, an image of the background of the observed scene, to obtain an image of shapes; isolating (124), in the considered image, a silhouette for each person present in the observed scene, to obtain an image of silhouettes; and, combining (126) the image of shapes and the image of silhouettes to obtain a processed image, comprising only objects present in the observed scene, and finally, over a temporal succession of processed images, a step (130 ) consisting of following each object from one processed image to another and emitting an alert as soon as an object is identified as being static during the detection time window. Figure for the abstract: Figure 2

FR2014290A 2020-12-31 2020-12-31 METHOD AND SYSTEM FOR DETECTING A STATIC OBJECT IN AN ENVIRONMENT MONITORED BY AT LEAST ONE CAMERA Active FR3118522B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR2014290A FR3118522B1 (en) 2020-12-31 2020-12-31 METHOD AND SYSTEM FOR DETECTING A STATIC OBJECT IN AN ENVIRONMENT MONITORED BY AT LEAST ONE CAMERA
EP21847698.4A EP4272159A1 (en) 2020-12-31 2021-12-28 Method and system for detecting a static object in an environment monitored by at least one camera
PCT/EP2021/087706 WO2022144346A1 (en) 2020-12-31 2021-12-28 Method and system for detecting a static object in an environment monitored by at least one camera

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2014290 2020-12-31
FR2014290A FR3118522B1 (en) 2020-12-31 2020-12-31 METHOD AND SYSTEM FOR DETECTING A STATIC OBJECT IN AN ENVIRONMENT MONITORED BY AT LEAST ONE CAMERA

Publications (2)

Publication Number Publication Date
FR3118522A1 FR3118522A1 (en) 2022-07-01
FR3118522B1 true FR3118522B1 (en) 2023-04-07

Family

ID=75953940

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2014290A Active FR3118522B1 (en) 2020-12-31 2020-12-31 METHOD AND SYSTEM FOR DETECTING A STATIC OBJECT IN AN ENVIRONMENT MONITORED BY AT LEAST ONE CAMERA

Country Status (3)

Country Link
EP (1) EP4272159A1 (en)
FR (1) FR3118522B1 (en)
WO (1) WO2022144346A1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8284249B2 (en) * 2008-03-25 2012-10-09 International Business Machines Corporation Real time processing of video frames for triggering an alert
JP6241796B2 (en) * 2015-12-25 2017-12-06 パナソニックＩｐマネジメント株式会社 Left item monitoring device, left item monitoring system including the same, and left item monitoring method

Also Published As

Publication number Publication date
EP4272159A1 (en) 2023-11-08
WO2022144346A1 (en) 2022-07-07
FR3118522A1 (en) 2022-07-01

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