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WO2010122056A3 - Systeme et methode pour detecter des evenements audio anormaux - Google Patents

Systeme et methode pour detecter des evenements audio anormaux Download PDF

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Publication number
WO2010122056A3
WO2010122056A3 PCT/EP2010/055266 EP2010055266W WO2010122056A3 WO 2010122056 A3 WO2010122056 A3 WO 2010122056A3 EP 2010055266 W EP2010055266 W EP 2010055266W WO 2010122056 A3 WO2010122056 A3 WO 2010122056A3
Authority
WO
WIPO (PCT)
Prior art keywords
analysed
audio stream
audio
during
database
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.)
Ceased
Application number
PCT/EP2010/055266
Other languages
English (en)
Other versions
WO2010122056A2 (fr
Inventor
François CAPMAN
Bertrand Ravera
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 US13/266,101 priority Critical patent/US8938404B2/en
Priority to BRPI1014280A priority patent/BRPI1014280A2/pt
Priority to SG2011078235A priority patent/SG175350A1/en
Priority to MX2011011214A priority patent/MX2011011214A/es
Priority to EP10718923A priority patent/EP2422301A2/fr
Publication of WO2010122056A2 publication Critical patent/WO2010122056A2/fr
Publication of WO2010122056A3 publication Critical patent/WO2010122056A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06N—COMPUTING ARRANGEMENTS BASED ON SPECIFIC COMPUTATIONAL MODELS
    • G06N20/00—Machine learning
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/16—Sound input; Sound output
    • G06F3/165—Management of the audio stream, e.g. setting of volume, audio stream path

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • General Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Multimedia (AREA)
  • Computing Systems (AREA)
  • Data Mining & Analysis (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Mathematical Physics (AREA)
  • Artificial Intelligence (AREA)
  • Evolutionary Computation (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Image Analysis (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

Procédé pour détecter des évènements audio anormaux dans un environnement donné, caractérisé en ce qu'il comporte au moins : · une étape automatisée d'apprentissage de la modélisation de l'environnement à surveiller au cours de laquelle une base de données (9) est élaborée par extraction de paramètres acoustiques (2.1) liés à des flux audio captés sur une période de temps fixée et une segmentation automatique (2.2) non supervisée des dits flux, suivi d'une étape de regroupement des segments par classes (2.3) et d'une modélisation statistique des classes de segments (2.4), · une phase d'utilisation qui comprend l'analyse d'un flux audio, avec extraction des paramètres acoustiques (3.1), une étape de segmentation automatique (3.2) dudit flux analysé sensiblement identique à celle utilisée lors de la phase d'apprentissage et une étape au cours de laquelle la vraisemblance (3.3) de chaque modèle statistique contenu dans la base de données est déterminée sur chacun des segments du flux audio analysé, · ladite étape de détermination des vraisemblances conduisant à une valeur l de vraisemblance qui est comparée à une valeur seuil afin de déclencher ou non un signal de présence ou d'absence d'anomalies audio dans le flux audio analysé.
PCT/EP2010/055266 2009-04-24 2010-04-21 Systeme et methode pour detecter des evenements audio anormaux Ceased WO2010122056A2 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US13/266,101 US8938404B2 (en) 2009-04-24 2010-04-21 System and method for detecting abnormal audio events
BRPI1014280A BRPI1014280A2 (pt) 2009-04-24 2010-04-21 sistema e ,método para detectar eventos de áudio anormais
SG2011078235A SG175350A1 (en) 2009-04-24 2010-04-21 System and method for detecting abnormal audio events
MX2011011214A MX2011011214A (es) 2009-04-24 2010-04-21 Sistema y metodo para detectar eventos de audio anormales.
EP10718923A EP2422301A2 (fr) 2009-04-24 2010-04-21 Systeme et methode pour detecter des evenements audio anormaux

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0902007A FR2944903B1 (fr) 2009-04-24 2009-04-24 Systeme et methode pour detecter des evenements audio anormaux
FR0902007 2009-04-24

Publications (2)

Publication Number Publication Date
WO2010122056A2 WO2010122056A2 (fr) 2010-10-28
WO2010122056A3 true WO2010122056A3 (fr) 2010-12-16

Family

ID=41402413

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/055266 Ceased WO2010122056A2 (fr) 2009-04-24 2010-04-21 Systeme et methode pour detecter des evenements audio anormaux

Country Status (8)

Country Link
US (1) US8938404B2 (fr)
EP (1) EP2422301A2 (fr)
BR (1) BRPI1014280A2 (fr)
FR (1) FR2944903B1 (fr)
MX (1) MX2011011214A (fr)
MY (1) MY157136A (fr)
SG (1) SG175350A1 (fr)
WO (1) WO2010122056A2 (fr)

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Also Published As

Publication number Publication date
FR2944903A1 (fr) 2010-10-29
MX2011011214A (es) 2011-11-18
SG175350A1 (en) 2011-11-28
FR2944903B1 (fr) 2016-08-26
MY157136A (en) 2016-05-13
US8938404B2 (en) 2015-01-20
WO2010122056A2 (fr) 2010-10-28
BRPI1014280A2 (pt) 2019-04-30
US20120185418A1 (en) 2012-07-19
EP2422301A2 (fr) 2012-02-29

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