Global Patent Index - EP 1364351 A1

EP 1364351 A1 20031126 - METHOD AND DEVICE FOR DETECTING FIRES BASED ON IMAGE ANALYSIS

Title (en)

METHOD AND DEVICE FOR DETECTING FIRES BASED ON IMAGE ANALYSIS

Title (de)

VERFAHREN UND EINRICHTUNG ZUM ERKENNUNG VON FASERN AUF DER GRUNDLAGE VON BILDANALYSE

Title (fr)

PROCEDE ET DISPOSITIF DE DETECTION DE FEUX BASE SUR L'ANALYSE D'IMAGES

Publication

EP 1364351 A1 20031126 (FR)

Application

EP 02711747 A 20020226

Priority

  • CH 0200118 W 20020226
  • CH 3402001 A 20010226

Abstract (en)

[origin: WO02069292A1] The invention for automatic detection of fires, based flame and/or smoke recognition by analysing a sequence of images. The analysis is based on several image processing algorithms. One algorithm consists in comparing the frequency content of at least an image of said sequence with the frequency content of a reference image so as to detect an attenuation of high frequencies independently of variations on other portions of the spectrum.

IPC 1-7

G08B 17/12; G08B 13/194

IPC 8 full level

G08B 13/194 (2006.01); G08B 17/12 (2006.01)

CPC (source: EP US)

G08B 13/19602 (2013.01 - EP US); G08B 17/125 (2013.01 - EP US)

Citation (search report)

See references of WO 02069292A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

DOCDB simple family (publication)

WO 02069292 A1 20020906; WO 02069292 A8 20031113; AT E298912 T1 20050715; EP 1364351 A1 20031126; EP 1364351 B1 20050629; EP 1364351 B8 20051012; EP 1364351 B8 20060503; ES 2243699 T3 20051201; US 2004175040 A1 20040909; US 6937743 B2 20050830

DOCDB simple family (application)

CH 0200118 W 20020226; AT 02711747 T 20020226; EP 02711747 A 20020226; ES 02711747 T 20020226; US 64710903 A 20030825