A bandpass filter (3a to 3c) allows a light ray of a predetermined band including a wavelength band of a color of a laser beam, which is a target of detection, among light rays from a subject to pass therethrough. An imaging unit of a video camera (2a to 2c) captures the light ray passing through the bandpass filter (3a to 3c). The controller (4a to 4c) analyzes a frequency for each brightness level of a video signal generated based on an imaging signal output from the imaging unit and detects a peak at which the frequency protrudes at a specific brightness level. The controller (4a to 4c) detects a trajectory of a straight light ray in a frame of the video signal. The controller (4a to 4c) detects that the laser beam is irradiated when the peak exists at a specific brightness level and the trajectory of the light ray exists in the frame.
LASER BEAM IRRADIATION DETECTION DEVICE, LASER BEAM IRRADIATION DETECTION METHOD, AND LASER BEAM IRRADIATION DETECTION SYSTEM
LASERSTRAHLBESTRAHLUNGSDETEKTIONSVORRICHTUNG, LASERSTRAHLBESTRAHLUNGSDETEKTIONSVERFAHREN UND LASERSTRAHLBESTRAHLUNGSDETEKTIONSSYSTEM
DISPOSITIF DE DÉTECTION D'ÉMISSION DE FAISCEAU LASER, PROCÉDÉ DE DÉTECTION D'ÉMISSION DE FAISCEAU LASER ET SYSTÈME DE DÉTECTION D'ÉMISSION DE FAISCEAU LASER
2023-11-15
Patent
Electronic Resource
English
IPC: | G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE , Anzeigen oder Aufzeichnen in Verbindung mit Messen allgemein / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / G01S RADIO DIRECTION-FINDING , Funkpeilung / H01S Vorrichtungen, die stimulierte Emission verwenden , DEVICES USING STIMULATED EMISSION |
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