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1. WO2020062699 - SYSTEMS AND METHODS FOR 3-DIMENSIONAL (3D) POSITIONING OF IMAGING DEVICE

Publication Number WO/2020/062699
Publication Date 02.04.2020
International Application No. PCT/CN2018/125754
International Filing Date 29.12.2018
IPC
G06T 7/80 2017.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
80Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
H04N 5/225 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment
225Television cameras
H04N 13/246 2018.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
13Stereoscopic video systems; Multi-view video systems; Details thereof
20Image signal generators
204using stereoscopic image cameras
246Calibration of cameras
CPC
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 7/18
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
7Television systems
18Closed circuit television systems, i.e. systems in which the signal is not broadcast
Applicants
  • ZHEJIANG DAHUA TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • MO, Guoqiang
Agents
  • METIS IP (CHENGDU) LLC
Priority Data
201811115795.525.09.2018CN
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEMS AND METHODS FOR 3-DIMENSIONAL (3D) POSITIONING OF IMAGING DEVICE
(FR) SYSTÈMES ET PROCÉDÉS DE POSITIONNEMENT TRIDIMENSIONNEL (3D) D'UN DISPOSITIF D'IMAGERIE
Abstract
(EN)
A method and a system for updating coordinate conversion parameters are provided. The method may include obtaining a first image captured by an imaging apparatus under a first configuration, selecting a feature point of an object in the first image and obtaining first coordinates of the feature point of the object in the first image. The method may further include causing the imaging apparatus to change from the first configuration to a second configuration. The method may further include obtaining a second image captured by the imaging apparatus under the second configuration, identifying the feature point of the object in the second image, and obtaining second coordinates of the feature point of the object in the second image. The method may further include updating the initial coordinate conversion parameters to generate an updated coordinate conversion parameter set.
(FR)
L'invention concerne un procédé et un système permettant de mettre à jour des paramètres de conversion de coordonnées. Le procédé peut consister à : obtenir une première image capturée par un appareil d'imagerie dans une première configuration ; sélectionner un point caractéristique d'un objet dans la première image ; et obtenir les premières coordonnées du point caractéristique de l'objet dans la première image. Le procédé peut également à consister à amener l'appareil d'imagerie à passer de la première configuration à une seconde configuration. Le procédé peut également consister à : obtenir une seconde image capturée par l'appareil d'imagerie dans la seconde configuration ; identifier le point caractéristique de l'objet dans la seconde image ; et obtenir les secondes coordonnées du point caractéristique de l'objet dans la seconde image. Le procédé peut également consister à mettre à jour les paramètres de conversion de coordonnées initiales afin de générer un ensemble de paramètres de conversion de coordonnées mis à jour.
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