Improving Face Anti-Spoofing by 3D Virtual Synthesis (2019-01-02T00:00:00.000000Z)

TL;DR

A method to synthesize virtual spoof data in 3D space to alleviate the problem of expensive spoof data acquisition and open up new possibilities for advancing face anti-spoofing using cheap and large-scale synthetic data.

Abstract

Face anti-spoofing is crucial for the security of face recognition systems. Learning based methods especially deep learning based methods need large-scale training samples to reduce overfitting. However, acquiring spoof data is very expensive since the live faces should be reprinted and re-captured in many views. In this paper, we present a method to synthesize virtual spoof data in 3D space to alleviate this problem. Specifically, we consider a printed photo as a flat surface and mesh it into a 3D object, which is then randomly bent and rotated in 3D space. Afterward, the transformed 3D photo is rendered through perspective projection as a virtual sample. The synthetic virtual samples can significantly boost the anti-spoofing performance when combined with a proposed data balancing strategy. Our promising results open up new possibilities for advancing face anti-spoofing using cheap and large-scale synthetic data.

Authors

Zhen Lei

13 papers

S. Li

18 papers

Xiangyu Zhu

7 papers

TL;DR

Abstract

Authors

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