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1. WO2020133331 - SYSTEMS AND METHODS FOR EXPOSURE CONTROL

Publication Number WO/2020/133331
Publication Date 02.07.2020
International Application No. PCT/CN2018/125289
International Filing Date 29.12.2018
IPC
H04N 5/235 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment
225Television cameras
235Circuitry for compensating for variation in the brightness of the object
CPC
H04N 1/00
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
1Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
H04N 1/00204
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
1Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
00127Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
00204with a digital computer or a digital computer system, e.g. an internet server
H04N 1/00209
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
1Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
00127Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
00204with a digital computer or a digital computer system, e.g. an internet server
00209Transmitting or receiving image data, e.g. facsimile data, via a computer, e.g. using e-mail, a computer network, the internet, I-fax
H04N 2201/0084
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
2201Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
0077Types of the still picture apparatus
0084Digital still camera
H04N 5/23245
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;
23245Operation mode switching of cameras, e.g. between still/video, sport/normal or high/low resolution mode
H04N 5/2353
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
235Circuitry ; or methods; for compensating for variation in the brightness of the object ; , e.g. based on electric image signals provided by an electronic image sensor
2353by influencing the exposure time, e.g. shutter
Applicants
  • ZHEJIANG DAHUA TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • SHAO, Yiyi
Agents
  • METIS IP (CHENGDU) LLC
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEMS AND METHODS FOR EXPOSURE CONTROL
(FR) SYSTÈMES ET PROCÉDÉS DE COMMANDE D'EXPOSITION
Abstract
(EN)
An imaging control method is provided. The method may include obtaining a current image generated based on an exposure parameter, wherein the current image includes a plurality of pixels; determining a plurality of target pixels or target pixel groups from at least portion of the plurality of pixels; determining a statistic representation based on target pixels or target pixel groups; determining a characteristic feature based on the statistic representation; and, updating the exposure parameter, based on the characteristic feature, to generate an updated image.
(FR)
L'invention concerne un procédé de commande d'imagerie. Le procédé peut consister à : obtenir une image actuelle générée d’après un paramètre d'exposition, l'image actuelle comprenant une pluralité de pixels ; déterminer une pluralité de pixels cibles ou de groupes de pixels cibles à partir d'au moins une partie de la pluralité de pixels ; déterminer une représentation statistique d’après les pixels cibles ou les groupes de pixels cibles ; déterminer un trait caractéristique d’après la représentation statistique ; et mettre à jour le paramètre d'exposition d’après le trait caractéristique afin de générer une image mise à jour.
Also published as
EP2018945017
Latest bibliographic data on file with the International Bureau