Journal
SENSORS
Volume 22, Issue 14, Pages -Publisher
MDPI
DOI: 10.3390/s22145196
Keywords
face presentation attacks; deep learning; feature-fusion
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This paper presents a feature-fusion method that combines features extracted by pre-trained deep learning models with traditional color and texture features to improve the performance of face presentation attack detection. Extensive experiments show that enriching the feature space can enhance the detection rate, opening up future research directions for exploring new characterizing features and fusion strategies.
Face presentation attacks (PA) are a serious threat to face recognition (FR) applications. These attacks are easy to execute and difficult to detect. An attack can be carried out simply by presenting a video, photo, or mask to the camera. The literature shows that both modern, pre-trained, deep learning-based methods, and traditional hand-crafted, feature-engineered methods have been effective in detecting PAs. However, the question remains as to whether features learned in existing, deep neural networks sufficiently encompass traditional, low-level features in order to achieve optimal performance on PA detection tasks. In this paper, we present a simple feature-fusion method that integrates features extracted by using pre-trained, deep learning models with more traditional colour and texture features. Extensive experiments clearly show the benefit of enriching the feature space to improve detection rates by using three common public datasets, namely CASIA, Replay Attack, and SiW. This work opens future research to improve face presentation attack detection by exploring new characterizing features and fusion strategies.
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