Systeme und Verfahren zur Entfernung von durch Led-Duty-Cycling Verursachtem Videoflimmern zur Aufrechterhaltung der Helligkeit und zur Steuerung des Stromverbrauchs

Details

Veröffentlichungs-Nr.

EP3637759

Aktenzeichen

EP19155620

Anmeldetag

5. Februar 2019

Veröffentlichung

20. November 2024

Erteilung

20. November 2024

Rechtsraum

EP

IPC

H04N23/73H04N23/745

Abstract

A video camera system includes a video capture device and a camera controller. The video capture device includes a sensor that receives light, a shutter that selectively permits the light to be received at the sensor based on a shutter speed, and a frame processor that generates a plurality of video frames based on the light. The camera controller includes a frame parameter calculator that calculates a luminance parameter of the plurality of frames, a frequency domain analyzer that executes a frequency domain analysis based on the luminance parameter to generate a plurality of luminance amplitude values mapped to a plurality of frequencies, and a control signal generator that generates a target shutter speed based on the plurality of luminance amplitude values mapped to the plurality of frequencies, and transmits a control signal based on the target shutter speed to cause the shutter to operate at the target shutter speed.

Anmelder

Firmen

Tyco Fire and Security GmbH
Johnson Controls Tyco IP Holdings LLP
Sensormatic Electronics LLC

Land

🇨🇭 Schweiz

Fachgebiete