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Recent multi-modal face anti-spoofing (FAS) methods have investigated the potential of leveraging multiple modalities to distinguish live and spoof faces. However, pre-adapted multi-modal FAS models often fail to detect unseen attacks from…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Ming-Tsung Hsu , Fang-Yu Hsu , Yi-Ting Lin , Kai-Heng Chien , Jun-Ren Chen , Cheng-Hsiang Su , Yi-Chen Ou , Chiou-Ting Hsu , Pei-Kai Huang

Recent advances in deep convolutional neural networks (DCNNs) have shown impressive performance improvements on thermal to visible face synthesis and matching problems. However, current DCNN-based synthesis models do not perform well on…

Computer Vision and Pattern Recognition · Computer Science 2022-01-14 Xing Di , Shuowen Hu , Vishal M. Patel

Face anti-spoofing (FAS) has recently advanced in multimodal fusion, cross-domain generalization, and interpretability. With large language models and reinforcement learning (RL), strategy-based training offers new opportunities to jointly…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Yingjie Ma , Xun Lin , Yong Xu , Weicheng Xie , Zitong Yu

Face anti-spoofing (FAS) plays a crucial role in securing face recognition systems. Empirically, given an image, a model with more consistent output on different views of this image usually performs better, as shown in Fig.1. Motivated by…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Zezheng Wang , Zitong Yu , Xun Wang , Yunxiao Qin , Jiahong Li , Chenxu Zhao , Zhen Lei , Xin Liu , Size Li , Zhongyuan Wang

Current facial expression recognition methods fail to simultaneously cope with pose and subject variations. In this paper, we propose a novel unsupervised adversarial domain adaptation method which can alleviate both variations at the same…

Computer Vision and Pattern Recognition · Computer Science 2020-07-14 Guang Liang , Shangfei Wang , Can Wang

Recent advances on unsupervised domain adaptation (UDA) rely on adversarial learning to disentangle the explanatory and transferable features for domain adaptation. However, there are two issues with the existing methods. First, the…

Machine Learning · Computer Science 2020-07-20 Yuan Wu , Diana Inkpen , Ahmed El-Roby

Face anti-spoofing (FAS) plays a critical role in securing face recognition systems from different presentation attacks. Previous works leverage auxiliary pixel-level supervision and domain generalization approaches to address unseen spoof…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Chien-Yi Wang , Yu-Ding Lu , Shang-Ta Yang , Shang-Hong Lai

Face anti-spoofing (FAS) is an indispensable and widely used module in face recognition systems. Although high accuracy has been achieved, a FAS system will never be perfect due to the non-stationary applied environments and the potential…

Computer Vision and Pattern Recognition · Computer Science 2021-06-29 Bowen Yang , Jing Zhang , Zhenfei Yin , Jing Shao

Data inconsistency and bias are inevitable among different facial expression recognition (FER) datasets due to subjective annotating process and different collecting conditions. Recent works resort to adversarial mechanisms that learn…

Computer Vision and Pattern Recognition · Computer Science 2020-08-05 Yuan Xie , Tianshui Chen , Tao Pu , Hefeng Wu , Liang Lin

In general, the performance of automatic speech recognition (ASR) systems is significantly degraded due to the mismatch between training and test environments. Recently, a deep-learning-based image-to-image translation technique to…

Audio and Speech Processing · Electrical Eng. & Systems 2019-04-15 Jong-Hyeon Park , Myungwoo Oh , Hyung-Min Park

With the development of deep learning, the field of face anti-spoofing (FAS) has witnessed great progress. FAS is usually considered a classification problem, where each class is assumed to contain a single cluster optimized by softmax…

Computer Vision and Pattern Recognition · Computer Science 2023-05-17 Qinghong Sun , Zhenfei Yin , Yichao Wu , Yuanhan Zhang , Jing Shao

To address the problem of data inconsistencies among different facial expression recognition (FER) datasets, many cross-domain FER methods (CD-FERs) have been extensively devised in recent years. Although each declares to achieve superior…

Computer Vision and Pattern Recognition · Computer Science 2021-12-01 Tianshui Chen , Tao Pu , Hefeng Wu , Yuan Xie , Lingbo Liu , Liang Lin

Face anti-spoofing (FAS) is crucial for securing face recognition systems. However, existing FAS methods with handcrafted binary or pixel-wise labels have limitations due to diverse presentation attacks (PAs). In this paper, we propose an…

Computer Vision and Pattern Recognition · Computer Science 2023-08-30 Weihua Liu , Chaochao Lin , Yu Yan

Recently, appearance-based gaze estimation has been attracting attention in computer vision, and remarkable improvements have been achieved using various deep learning techniques. Despite such progress, most methods aim to infer gaze…

Computer Vision and Pattern Recognition · Computer Science 2024-01-26 Suneung Kim , Woo-Jeoung Nam , Seong-Whan Lee

The challenge of Domain Generalization (DG) in Face Anti-Spoofing (FAS) is the significant interference of domain-specific signals on subtle spoofing clues. Recently, some CLIP-based algorithms have been developed to alleviate this…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Jiabao Guo , Ajian Liu , Yunfeng Diao , Jin Zhang , Hui Ma , Bo Zhao , Richang Hong , Meng Wang

We introduce a novel unsupervised domain adaptation approach for object detection. We aim to alleviate the imperfect translation problem of pixel-level adaptations, and the source-biased discriminativity problem of feature-level adaptations…

Computer Vision and Pattern Recognition · Computer Science 2019-05-15 Taekyung Kim , Minki Jeong , Seunghyeon Kim , Seokeon Choi , Changick Kim

Adversarial discriminative domain adaptation (ADDA) is an efficient framework for unsupervised domain adaptation in image classification, where the source and target domains are assumed to have the same classes, but no labels are available…

Computer Vision and Pattern Recognition · Computer Science 2019-11-12 Aaron Chadha , Yiannis Andreopoulos

Although existing face anti-spoofing (FAS) methods achieve high accuracy in intra-domain experiments, their effects drop severely in cross-domain scenarios because of poor generalization. Recently, multifarious techniques have been…

Computer Vision and Pattern Recognition · Computer Science 2022-01-03 Shice Liu , Shitao Lu , Hongyi Xu , Jing Yang , Shouhong Ding , Lizhuang Ma

Face anti-spoofing is crucial to security of face recognition systems. Previous approaches focus on developing discriminative models based on the features extracted from images, which may be still entangled between spoof patterns and real…

Computer Vision and Pattern Recognition · Computer Science 2020-08-20 Ke-Yue Zhang , Taiping Yao , Jian Zhang , Ying Tai , Shouhong Ding , Jilin Li , Feiyue Huang , Haichuan Song , Lizhuang Ma

Different camera sensors have different noise patterns, and thus an image denoising model trained on one sensor often does not generalize well to a different sensor. One plausible solution is to collect a large dataset for each sensor for…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Zian Qian , Chenyang Qi , Ka Lung Law , Hao Fu , Chenyang Lei , Qifeng Chen