EP 4256777 A1 20231011 - METHOD AND APPARATUS FOR CALIBRATING A CAMERA AND CAMERA
Title (en)
METHOD AND APPARATUS FOR CALIBRATING A CAMERA AND CAMERA
Title (de)
VERFAHREN UND VORRICHTUNG ZUM KALIBRIEREN EINER KAMERA UND KAMERA
Title (fr)
PROCÉDÉ ET DISPOSITIF D'ÉTALONNAGE D'UNE CAMÉRA ET CAMÉRA
Publication
Application
Priority
- DE 102020215412 A 20201207
- EP 2021079651 W 20211026
Abstract (en)
[origin: WO2022122241A1] The invention relates to a method for calibrating a camera (100), comprising reading in a camera raw image (115), the camera raw image (115) having a plurality of pixels, each pixel having a grey value consisting of a plurality of grey values. A first amount of grey values of the pixels above a maximum grey threshold value (MaT) is compared to a first frequency (UbP). A current gain (135) of the camera (100) is adjusted to a new gain (140) if the first amount exceeds the first frequency (UbP). A second amount of grey values of the pixels above a minimum grey threshold value (MiT) is compared to a second frequency (LbP) if the first amount does not exceed the first frequency (UbP). The current gain (135) and a current exposure (145) of the camera (100) are maintained if the second amount does not fall below the second frequency (LbP). The current exposure (145) is adjusted to a new exposure (150) if the second amount falls below the second frequency (LbP).
IPC 8 full level
H04N 17/00 (2006.01)
CPC (source: EP US)
G06T 7/80 (2017.01 - US); H04N 23/72 (2023.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022122241 A1 20220616; DE 102020215412 A1 20220609; EP 4256777 A1 20231011; US 2023334700 A1 20231019
DOCDB simple family (application)
EP 2021079651 W 20211026; DE 102020215412 A 20201207; EP 21802222 A 20211026; US 202118044523 A 20211026