# Bi-FPNFAS: Bi-Directional Feature Pyramid Network for Pixel-Wise Face Anti-Spoofing by Leveraging Fourier Spectra

> Research article (Sensors, 2021) · cited 27× · AI/ML

**Wikidata**: [openalex:W3156511322](https://www.wikidata.org/wiki/openalex:W3156511322)  
**Source**: https://4ort.xyz/entity/bi-fpnfas-bi-directional-feature-pyramid-network-for-pixel-wise-face-anti-spoofing-by-leveraging-fourier-spectra