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Related papers: Visual Prompt Flexible-Modal Face Anti-Spoofing

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Face anti-spoofing (FAS) plays a pivotal role in ensuring the security and reliability of face recognition systems. With advancements in vision-language pretrained (VLP) models, recent two-class FAS techniques have leveraged the advantages…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Pei-Kai Huang , Jun-Xiong Chong , Cheng-Hsuan Chiang , Tzu-Hsien Chen , Tyng-Luh Liu , Chiou-Ting Hsu

In federated learning, textual prompt tuning adapts Vision-Language Models (e.g., CLIP) by tuning lightweight input tokens (or prompts) on local client data, while keeping network weights frozen. After training, only the prompts are shared…

Computer Vision and Pattern Recognition · Computer Science 2025-09-03 Mainak Singha , Subhankar Roy , Sarthak Mehrotra , Ankit Jha , Moloud Abdar , Biplab Banerjee , Elisa Ricci

Recent face anti-spoofing (FAS) methods have shown remarkable cross-domain performance by employing vision-language models like CLIP. However, existing CLIP-based FAS models do not fully exploit CLIP's patch embedding tokens, failing to…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Jeongmin Yu , Susang Kim , Kisu Lee , Taekyoung Kwon , Won-Yong Shin , Ha Young Kim

Prompt learning has been widely adopted to efficiently adapt vision-language models (VLMs) like CLIP for various downstream tasks. Despite their success, current VLM-based facial expression recognition (FER) methods struggle to capture…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Fuyan Ma , Yiran He , Bin Sun , Shutao Li

The development of multimodal models has significantly advanced multimodal sentiment analysis and emotion recognition. However, in real-world applications, the presence of various missing modality cases often leads to a degradation in the…

Computation and Language · Computer Science 2024-07-09 Zirun Guo , Tao Jin , Zhou Zhao

Large-scale pre-training has brought unimodal fields such as computer vision and natural language processing to a new era. Following this trend, the size of multi-modal learning models constantly increases, leading to an urgent need to…

Computer Vision and Pattern Recognition · Computer Science 2023-05-16 Yaowei Li , Ruijie Quan , Linchao Zhu , Yi Yang

Blind face restoration aims to recover high-quality facial images from various unidentified sources of degradation, posing significant challenges due to the minimal information retrievable from the degraded images. Prior knowledge-based…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Wanglong Lu , Jikai Wang , Tao Wang , Kaihao Zhang , Xianta Jiang , Hanli Zhao

The progression of deep learning and the widespread adoption of sensors have facilitated automatic multi-view fusion (MVF) about the cardiovascular system (CVS) signals. However, prevalent MVF model architecture often amalgamates CVS…

Machine Learning · Computer Science 2024-06-14 Qihan Hu , Daomiao Wang , Hong Wu , Jian Liu , Cuiwei Yang

With abundant, unlabeled real faces, how can we learn robust and transferable facial representations to boost generalization across various face security tasks? We make the first attempt and propose FS-VFM, a scalable self-supervised…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Gaojian Wang , Feng Lin , Tong Wu , Zhisheng Yan , Kui Ren

Multimodal learning seeks to utilize data from multiple sources to improve the overall performance of downstream tasks. It is desirable for redundancies in the data to make multimodal systems robust to missing or corrupted observations in…

Computer Vision and Pattern Recognition · Computer Science 2024-10-14 Md Kaykobad Reza , Ashley Prater-Bennette , M. Salman Asif

In videos containing spoofed faces, we may uncover the spoofing evidence based on either photometric or dynamic abnormality, even a combination of both. Prevailing face anti-spoofing (FAS) approaches generally concentrate on the…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Jingyi Yang , Zitong Yu , Xiuming Ni , Jia He , Hui Li

As powerful pre-trained vision-language models (VLMs) like CLIP gain prominence, numerous studies have attempted to combine VLMs for downstream tasks. Among these, prompt learning has been validated as an effective method for adapting to…

Computer Vision and Pattern Recognition · Computer Science 2024-09-19 Yu Du , Tong Niu , Rong Zhao

Large-scale multi-modal models have demonstrated remarkable performance across various visual recognition tasks by leveraging extensive paired multi-modal training data. However, in real-world applications, the presence of missing or…

Computer Vision and Pattern Recognition · Computer Science 2025-07-14 Zhihui Zhang , Luanyuan Dai , Qika Lin , Yunfeng Diao , Guangyin Jin , Yufei Guo , Jing Zhang , Xiaoshuai Hao

Federated learning (FL) has obtained tremendous progress in providing collaborative training solutions for distributed data silos with privacy guarantees. However, few existing works explore a more realistic scenario where the clients hold…

Machine Learning · Computer Science 2024-06-18 Liwei Che , Jiaqi Wang , Xinyue Liu , Fenglong Ma

Pre-trained vision-language models (VLMs) have shown remarkable generalization capabilities via prompting, which leverages VLMs as knowledge bases to extract information beneficial for downstream tasks. However, existing methods primarily…

Computer Vision and Pattern Recognition · Computer Science 2024-04-25 Xiaoyu Qiu , Hao Feng , Yuechen Wang , Wengang Zhou , Houqiang Li

Face anti-spoofing (FAS) is an essential mechanism for safeguarding the integrity of automated face recognition systems. Despite substantial advancements, the generalization of existing approaches to real-world applications remains…

Computer Vision and Pattern Recognition · Computer Science 2023-05-08 Dong Wang , Jia Guo , Qiqi Shao , Haochi He , Zhian Chen , Chuanbao Xiao , Ajian Liu , Sergio Escalera , Hugo Jair Escalante , Zhen Lei , Jun Wan , Jiankang Deng

The missing modality problem poses a fundamental challenge in multimodal sentiment analysis, significantly degrading model accuracy and generalization in real world scenarios. Existing approaches primarily improve robustness through prompt…

Computer Vision and Pattern Recognition · Computer Science 2026-04-08 Rongfei Chen , Tingting Zhang , Xiaoyu Shen , Wei Zhang

Face anti-spoofing is a critical technology for ensuring the security of face recognition systems. However, its ability to generalize across diverse scenarios remains a significant challenge. In this paper, we attribute the limited…

Computer Vision and Pattern Recognition · Computer Science 2025-05-07 Fangling Jiang , Qi Li , Weining Wang , Wei Shen , Bing Liu , Zhenan Sun

Recent vision-language models are driven by large-scale pretrained models. However, adapting pretrained models on limited data presents challenges such as overfitting, catastrophic forgetting, and the cross-modal gap between vision and…

Computer Vision and Pattern Recognition · Computer Science 2023-09-29 Deniz Engin , Yannis Avrithis

Face Anti-Spoofing (FAS) remains challenging due to the requirement for robust domain generalization across unseen environments. While recent trends leverage Vision-Language Models (VLMs) for semantic supervision, these multimodal…

Computer Vision and Pattern Recognition · Computer Science 2026-04-22 Mika Feng , Pierre Gallin-Martel , Koichi Ito , Takafumi Aoki