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1. WO1996006368 - IMAGE-EVALUATION SYSTEM AND PROCESS

Publication Number WO/1996/006368
Publication Date 29.02.1996
International Application No. PCT/EP1995/003193
International Filing Date 11.08.1995
Chapter 2 Demand Filed 19.03.1996
IPC
G06T 7/20 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
20Analysis of motion
G08B 13/194 2006.01
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
13Burglar, theft or intruder alarms
18Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
189using passive radiation detection systems
194using image scanning and comparing systems
CPC
G01V 8/10
GPHYSICS
01MEASURING; TESTING
VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS
8Prospecting or detecting by optical means
10Detecting, e.g. by using light barriers
G06T 7/246
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
20Analysis of motion
246using feature-based methods, e.g. the tracking of corners or segments
G06T 7/254
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
20Analysis of motion
254involving subtraction of images
G08B 13/19602
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
13Burglar, theft or intruder alarms
18Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength
189using passive radiation detection systems
194using image scanning and comparing systems
196using television cameras
19602Image analysis to detect motion of the intruder, e.g. by frame subtraction
G08B 13/19652
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
13Burglar, theft or intruder alarms
18Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength
189using passive radiation detection systems
194using image scanning and comparing systems
196using television cameras
19639Details of the system layout
19652Systems using zones in a single scene defined for different treatment, e.g. outer zone gives pre-alarm, inner zone gives alarm
G08B 13/19691
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
13Burglar, theft or intruder alarms
18Actuation by interference with heat, light or radiation of shorter wavelength; Actuation by intruding sources of heat, light or radiation of shorter wavelength
189using passive radiation detection systems
194using image scanning and comparing systems
196using television cameras
19678User interface
19691Signalling events for better perception by user, e.g. indicating alarms by making display brighter, adding text, creating a sound
Applicants
  • SQ SERVICES AG [CH/CH]; Sumpfstrasse 5 CH-6312 Steinhausen, CH (AllExceptUS)
  • DORNIER, Claudio [CH/CH]; CH (UsOnly)
Inventors
  • DORNIER, Claudio; CH
Agents
  • PELLMANN, Hans-Bernd; Tiedtke-Bühling-Kinne & Partner Bavariaring 4 D-80336 München, DE
  • GRAMS, Klaus; Tiedtke-Bühling-Kinne & Partner Bavariaring 4 D-80336 München, DE
Priority Data
P 44 30 016.624.08.1994DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) SYSTEM UND VERFAHREN ZUR BILDAUSWERTUNG
(EN) IMAGE-EVALUATION SYSTEM AND PROCESS
(FR) SYSTEME ET PROCEDE D'EVALUATION D'IMAGES
Abstract
(DE)
System und Verfahren zur Bildauswertung, gemäß dem ein aus einem digitalisierten Videosignal einer Überwachungskamera gewonnenes Differenzbild, in dem sich ändernde Bildpunkte markiert sind, mittels eines Objektextraktors auf zusammenhängende Bildpunkte (Objekte) untersucht wird. Die extrahierten Objekte werden gespeicherten Objekten eines vorangegangenen Bildes zugeordnet. Durch Auswertung bestimmter Relevanz-Kriterien, die von der Veränderung der Objektposition in bezug auf vorbestimmbare Bildzonen A, B, C unterschiedlicher Melderelevanz abhängig sind, erfolgt eine zonenabhängige Meldungsabgabe.
(EN)
The invention concerns an image-evaluation system and process wherein a differential image which is obtained from a digitized video signal from a surveillance camera and in which varying pixels are marked, is investigated for contiguous pixels (objects) by means of an object extractor. The extracted objects are associated with stored objects of a preceding image. A zone-dependent message is emitted by evaluating given relevance criteria which are dependent on the variation in the position of the objects relative to predetermined image areas A, B, C of differing degrees of relevance for the message.
(FR)
L'invention concerne un système et un procédé d'évaluation d'images permettant de rechercher, au moyen d'un extracteur d'objet, les pixels contigus (objets) d'une image différentielle dans laquelle sont marqués les pixels qui varient, ladite image étant obtenue à partir d'un signal vidéo numérisé d'une caméra de surveillance. Les objets extraits sont affectés à des objets mis en mémoire d'une image précédente. L'évaluation de certains critères de pertinence, qui sont fonction de la variation de la position de l'objet par rapport à des zones d'image A, B, C pouvant être prédéterminées et présentant différents degrés de pertinence de signalisation, permet d'envoyer un signal en fonction des différentes zones.
Also published as
FI970709
NO19970814
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