(19)
(11) EP 1 037 181 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
19.01.2005 Bulletin 2005/03

(43) Date of publication A2:
20.09.2000 Bulletin 2000/38

(21) Application number: 00105069.9

(22) Date of filing: 10.03.2000
(51) International Patent Classification (IPC)7: G08B 13/194
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 12.03.1999 DE 19911108

(71) Applicant: Delphi Technologies, Inc.
Troy, MI 48007 (US)

(72) Inventor:
  • Langenbach, Julia, Dr.
    57258 Freudenberg (DE)

(74) Representative: COHAUSZ & FLORACK 
Patent- und Rechtsanwälte Bleichstrasse 14
40211 Düsseldorf
40211 Düsseldorf (DE)

   


(54) Method and system for monitoring an interior


(57) The invention relates to a method and a system for monitoring an interior. For detecting an object 3 trespassing into the interior a picture of the interior is compared with a previously taken background image showing the interior from the same angle when it is not disturbed by any trespassing object. A detecting means 30 takes a decision for detecting an object 3 trespassing into said interior in the case that there is a shadow 4', 4'' caused by said trespassed object 3 in the picture covering at least a section of said interior. In order to reduce the effort for detecting the object 3 trespassing into the interior the present invention proposes not to evaluate shadows in any part of the picture but only that shadows which cover at least a part of a predetermined relevant area of the interior through which trespassing of an object is most likely expected.






Search report