ǂa ǂnovel fusion approach for 3D face recognition using region covariance descriptors and Gaussian mixture models
Janez Križaj (Avtor), Simon Dobrišek (Avtor), Vitomir Štruc (Avtor)

Povzetek

Most commercially successful face recognition systems combine information from multiple sensors (2D and 3D, visible light and infrared, etc.) to achieve reliable recognition in various environments. When only a single sensor is available, the robustness as well as efficacy of the recognition process suffer. In this paper, we focus on face recognition using images captured by a single 3D sensor and propose a method based on the use of region covariance matrixes and Gaussian mixture models (GMMs). All steps of the proposed framework are automated, and no metadata, such as pre-annotated eye, nose, or mouth positions is required, while only a very simple clustering-based face detection is performed. The framework computes a set of region covariance descriptors from local regions of different face image representations and then uses the unscented transform to derive low-dimensional feature vectors, which are finally modeled by GMMs. In the last step, a support vector machine classification scheme is used to make a decision about the identity of the input 3D facial image. The proposed framework has several desirable characteristics, such as an inherent mechanism for data fusion/integration (through the region covariance matrixes), the ability to explore facial images at different levels of locality, and the ability to integrate a domain-specific prior knowledge into the modeling procedure. Several normalization techniques are incorporated into the proposed framework to further improve performance. Extensive experiments are performed on three prominent databases (FRGC v2, CASIA, and UMB-DB) yielding competitive results.

Ključne besede

biometrija;računalniški vid;3D razpoznavanje obrazov;fuzija;kovariančni opisniki;biometrics;computer vision;3D face recognition;fusion;covariance descriptors;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FE - Fakulteta za elektrotehniko
UDK: 004.93:57.087.1
COBISS: 101606403 Povezava se bo odprla v novem oknu
ISSN: 1424-8220
Št. ogledov: 78
Št. prenosov: 27
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: biometrija;računalniški vid;3D razpoznavanje obrazov;fuzija;kovariančni opisniki;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 1-26
Letnik: ǂiss. ǂ6
Zvezek: 2388
Čas izdaje: Mar.-2 2022
DOI: 10.3390/s22062388
ID: 15692271
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