Verarbeitungsvorrichtung zur Lebendigkeitsbestimmung auf der Basis eines Mehrzweigigen Netzwerks

Details

Veröffentlichungs-Nr.

EP4401050

Aktenzeichen

EP23305033

Anmeldetag

10. Januar 2023

Veröffentlichung

17. Juli 2024

Rechtsraum

EP

IPC

G06V40/40

Abstract

The invention provides a method for determining liveness of a target person comprising: obtaining (511; 512) a series of n frames from a sequence of frames acquired by a frame capture device, n being equal to or greater than 2, at least some of the frames representing the target person. The n frames are processed by a multi-branch convolutional neural network, by determining (514.1) a first partial score for the series of n frames, determining (514.2) a second partial score for the series of n frames and determining (515) a fusion score based on the first and second partial scores, said fusion score being representative of liveness of the target person. The first partial score is determined based on first features among local spatial features, on global spatial features or on temporal features, and wherein the second partial score is determined based on second features that are different from the first features.

Anmelder

Firma

THALES DIS FRANCE SAS

Land

🇫🇷 Frankreich

Fachgebiete