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1. WO2012083056 - CALCUL DE FACTEUR DE ZOOM

Numéro de publication WO/2012/083056
Date de publication 21.06.2012
N° de la demande internationale PCT/US2011/065236
Date du dépôt international 15.12.2011
CIB
H04N 7/18 2006.01
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
NTRANSMISSION D'IMAGES, p.ex. TÉLÉVISION
7Systèmes de télévision
18Systèmes de télévision en circuit fermé, c. à d. systèmes dans lesquels le signal n'est pas diffusé
H04N 5/232 2006.01
HÉLECTRICITÉ
04TECHNIQUE DE LA COMMUNICATION ÉLECTRIQUE
NTRANSMISSION D'IMAGES, p.ex. TÉLÉVISION
5Détails des systèmes de télévision
222Circuits de studio; Dispositifs de studio; Equipements de studio
225Caméras de télévision
232Dispositifs pour la commande des caméras de télévision, p.ex. commande à distance
CPC
G08B 13/19608
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
19608Tracking movement of a target, e.g. by detecting an object predefined as a target, using target direction and or velocity to predict its new position
G08B 13/1963
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
19617Surveillance camera constructional details
1963Arrangements allowing camera rotation to change view, e.g. pivoting camera, pan-tilt and zoom [PTZ]
G08B 13/19641
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
19641Multiple cameras having overlapping views on a single scene
G08B 13/19643
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
19641Multiple cameras having overlapping views on a single scene
19643wherein the cameras play different roles, e.g. different resolution, different camera type, master-slave camera
H04N 5/232
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
225Television cameras ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
232Devices for controlling television cameras, e.g. remote control ; ; Control of cameras comprising an electronic image sensor;
H04N 5/232061
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
225Television cameras ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
232Devices for controlling television cameras, e.g. remote control ; ; Control of cameras comprising an electronic image sensor;
23203Remote-control signaling for television cameras, cameras comprising an electronic image sensor or for parts thereof, e.g. between main body and another part of camera
23206Transmission of camera control signals via a network, e.g. Internet
232061using Master/Slave camera arrangements for affecting the control of camera image capture, e.g. placing the camera in a desirable condition to capture a desired image
Déposants
  • PELCO INC. [US]/[US] (AllExceptUS)
  • HUANG, Chien-Min [US]/[US] (UsOnly)
Inventeurs
  • HUANG, Chien-Min
Mandataires
  • CLARK, Thomas, J.
Données relatives à la priorité
12/971,56117.12.2010US
Langue de publication anglais (EN)
Langue de dépôt anglais (EN)
États désignés
Titre
(EN) ZOOMING FACTOR COMPUTATION
(FR) CALCUL DE FACTEUR DE ZOOM
Abrégé
(EN)
Systems, methods, and devices are disclosed for determining a zooming factor for a camera in a pan, tilt, and zoom (PTZ) camera tracking system to enable a camera to keep an object at a constant size within the camera's viewing area, despite changes in the object's distance from the camera. This provides a complement to a camera's pan and tilt tracking of the moving object. For example, a PTZ camera tracking system that determines an object to track, utilizes information regarding images of the object of interest are used to determine a zooming factor (or other zooming value) for a camera in the PTZ camera tracking system. This information includes variables such as tilt angles of one or more cameras and a reference zooming factor.
(FR)
L'invention porte sur des systèmes, des procédés et des dispositifs servant à déterminer un facteur de zoom pour une caméra dans un système de suivi par caméra à panoramique, inclinaison et zoom (PTZ) pour permettre à une caméra de maintenir un objet à une taille constante dans la zone de visibilité de la caméra, malgré des variations de la distance de l'objet à la caméra. Ceci est complémentaire à un suivi de l'objet mobile par panoramique et inclinaison de la caméra. Par exemple, un système de suivi par caméra PTZ qui détermine un objet à suivre utilise des informations concernant des images de l'objet d'intérêt pour déterminer un facteur de zoom (ou autre valeur de zoom) pour une caméra dans le système de suivi par caméra PTZ. Ces informations comprennent des variables telles que des angles d'inclinaison d'une ou plusieurs caméras et un facteur de zoom de référence.
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