Computerimplementiertes Verfahren zur Verarbeitung einer Rahmensequenz, Computerprogrammprodukt einer Digitalen Rahmenverarbeitungsvorrichtung und Überwachungssystem

Details

Veröffentlichungs-Nr.

EP3534294

Aktenzeichen

EP18159762

Anmeldetag

2. März 2018

Veröffentlichung

6. September 2023

Erteilung

6. September 2023

Rechtsraum

EP

IPC

G06V20/52G06V10/82G06V10/44G06V10/764

Abstract

A computer implemented method for processing a frame sequence to generate an alarm when a dangerous object is being used including a frame acquisition (11) step, a division into sub-regions (12) step, object identification (13) step and decision making (14) step, in which alert generation (16) step is executed if decision made in decision making step (14) is positive. Division into sub-regions (12) step includes division of the frame into sub-regions that overlap and have minimal dimension of at least 100 pixels. Object identification step (13) is executed in sub-region by sub-region manner and includes processing a frame with a deep neural network trained to detect the dangerous object and returns probability of detection for sub-regions of the frame formed into probability map corresponding to the frame. Decision made in decision making (14) step is based on at least a first criterion and a second criterion applying to the subsequent frames and corresponding probability maps. The first criterion includes probability of detection within a predefined number N of subsequent frames being above predefined value of. The second criterion includes the minimal distance between sub-regions in which probability of detection above predefined value ofwas observed in subsequent frames being lower than given value

Anmelder

Firma

Akademia Gorniczo-Hutnicza im. Stanislawa Staszica w Krakowie

Land

🇵🇱 Polen

Fachgebiete