Search Results for author: Xiaobai Li

Found 29 papers, 13 papers with code

Measuring Non-Typical Emotions for Mental Health: A Survey of Computational Approaches

no code implementations9 Mar 2024 Puneet Kumar, Alexander Vedernikov, Xiaobai Li

This survey is the first to simultaneously explore computational methods for analyzing stress, depression, and engagement.

Emotion Recognition

Synthesizing Sentiment-Controlled Feedback For Multimodal Text and Image Data

1 code implementation12 Feb 2024 Puneet Kumar, Sarthak Malik, Balasubramanian Raman, Xiaobai Li

It implements an interpretability technique to analyze the contribution of textual and visual features during the generation of uncontrolled and controlled feedback.

Marketing Sentiment Analysis +1

Interpretable Multimodal Emotion Recognition using Facial Features and Physiological Signals

no code implementations5 Jun 2023 Puneet Kumar, Xiaobai Li

This paper aims to demonstrate the importance and feasibility of fusing multimodal information for emotion recognition.

Emotion Classification Feature Importance +1

Hybrid Fusion Based Interpretable Multimodal Emotion Recognition with Limited Labelled Data

1 code implementation24 Aug 2022 Puneet Kumar, Sarthak Malik, Balasubramanian Raman, Xiaobai Li

This paper proposes a multimodal emotion recognition system, VIsual Spoken Textual Additive Net (VISTA Net), to classify emotions reflected by multimodal input containing image, speech, and text into discrete classes.

Multimodal Emotion Recognition

Contrast-Phys: Unsupervised Video-based Remote Physiological Measurement via Spatiotemporal Contrast

1 code implementation8 Aug 2022 Zhaodong Sun, Xiaobai Li

However, supervised rPPG methods require face videos and ground truth physiological signals for model training.

Review of Face Presentation Attack Detection Competitions

no code implementations21 Dec 2021 Zitong Yu, Jukka Komulainen, Xiaobai Li, Guoying Zhao

Face presentation attack detection (PAD) has received increasing attention ever since the vulnerabilities to spoofing have been widely recognized.

Face Anti-Spoofing Face Presentation Attack Detection

iMiGUE: An Identity-free Video Dataset for Micro-Gesture Understanding and Emotion Analysis

1 code implementation CVPR 2021 Xin Liu, Henglin Shi, Haoyu Chen, Zitong Yu, Xiaobai Li, Guoying Zhaoz?

We introduce a new dataset for the emotional artificial intelligence research: identity-free video dataset for Micro-Gesture Understanding and Emotion analysis (iMiGUE).

Emotion Recognition

Deep Learning for Face Anti-Spoofing: A Survey

2 code implementations28 Jun 2021 Zitong Yu, Yunxiao Qin, Xiaobai Li, Chenxu Zhao, Zhen Lei, Guoying Zhao

Face anti-spoofing (FAS) has lately attracted increasing attention due to its vital role in securing face recognition systems from presentation attacks (PAs).

Domain Generalization Face Anti-Spoofing +1

Dual-Cross Central Difference Network for Face Anti-Spoofing

1 code implementation4 May 2021 Zitong Yu, Yunxiao Qin, Hengshuang Zhao, Xiaobai Li, Guoying Zhao

In this paper, we propose two Cross Central Difference Convolutions (C-CDC), which exploit the difference of the center and surround sparse local features from the horizontal/vertical and diagonal directions, respectively.

Face Anti-Spoofing Face Recognition

TransRPPG: Remote Photoplethysmography Transformer for 3D Mask Face Presentation Attack Detection

no code implementations15 Apr 2021 Zitong Yu, Xiaobai Li, Pichao Wang, Guoying Zhao

3D mask face presentation attack detection (PAD) plays a vital role in securing face recognition systems from emergent 3D mask attacks.

Face Presentation Attack Detection Face Recognition

Revisiting Pixel-Wise Supervision for Face Anti-Spoofing

1 code implementation24 Nov 2020 Zitong Yu, Xiaobai Li, Jingang Shi, Zhaoqiang Xia, Guoying Zhao

Face anti-spoofing (FAS) plays a vital role in securing face recognition systems from the presentation attacks (PAs).

Face Anti-Spoofing Face Recognition

Micro-expression spotting: A new benchmark

no code implementations24 Jul 2020 Thuong-Khanh Tran, Quang-Nhat Vo, Xiaopeng Hong, Xiaobai Li, Guoying Zhao

Micro-expressions (MEs) are brief and involuntary facial expressions that occur when people are trying to hide their true feelings or conceal their emotions.

Micro-Expression Spotting

Video-based Remote Physiological Measurement via Cross-verified Feature Disentangling

1 code implementation ECCV 2020 Xuesong Niu, Zitong Yu, Hu Han, Xiaobai Li, Shiguang Shan, Guoying Zhao

Remote physiological measurements, e. g., remote photoplethysmography (rPPG) based heart rate (HR), heart rate variability (HRV) and respiration frequency (RF) measuring, are playing more and more important roles under the application scenarios where contact measurement is inconvenient or impossible.

Heart Rate Variability

Face Anti-Spoofing with Human Material Perception

no code implementations ECCV 2020 Zitong Yu, Xiaobai Li, Xuesong Niu, Jingang Shi, Guoying Zhao

In this paper we rephrase face anti-spoofing as a material recognition problem and combine it with classical human material perception [1], intending to extract discriminative and robust features for FAS.

Face Anti-Spoofing Face Recognition +1

AutoHR: A Strong End-to-end Baseline for Remote Heart Rate Measurement with Neural Searching

no code implementations26 Apr 2020 Zitong Yu, Xiaobai Li, Xuesong Niu, Jingang Shi, Guoying Zhao

Remote photoplethysmography (rPPG), which aims at measuring heart activities without any contact, has great potential in many applications (e. g., remote healthcare).

Data Augmentation Neural Architecture Search +1

Multi-Modal Face Anti-Spoofing Based on Central Difference Networks

1 code implementation17 Apr 2020 Zitong Yu, Yunxiao Qin, Xiaobai Li, Zezheng Wang, Chenxu Zhao, Zhen Lei, Guoying Zhao

Face anti-spoofing (FAS) plays a vital role in securing face recognition systems from presentation attacks.

Face Anti-Spoofing Face Recognition

Searching Central Difference Convolutional Networks for Face Anti-Spoofing

4 code implementations CVPR 2020 Zitong Yu, Chenxu Zhao, Zezheng Wang, Yunxiao Qin, Zhuo Su, Xiaobai Li, Feng Zhou, Guoying Zhao

Here we propose a novel frame level FAS method based on Central Difference Convolution (CDC), which is able to capture intrinsic detailed patterns via aggregating both intensity and gradient information.

Face Anti-Spoofing Face Recognition +1

Deep-HR: Fast Heart Rate Estimation from Face Video Under Realistic Conditions

no code implementations12 Feb 2020 Mohammad Sabokrou, Masoud Pourreza, Xiaobai Li, Mahmood Fathy, Guoying Zhao

In this paper, we propose a simple yet efficient approach to benefit the advantages of the Deep Neural Network (DNN) by simplifying HR estimation from a complex task to learning from very correlated representation to HR.

Heart rate estimation regression

Towards Reading Beyond Faces for Sparsity-Aware 4D Affect Recognition

no code implementations8 Feb 2020 Muzammil Behzad, Nhat Vo, Xiaobai Li, Guoying Zhao

Importantly, we then present a sparsity-aware deep network to compute the sparse representations of convolutional features over multi-views.

Facial Expression Recognition Facial Expression Recognition (FER)

Remote Photoplethysmograph Signal Measurement from Facial Videos Using Spatio-Temporal Networks

2 code implementations7 May 2019 Zitong Yu, Xiaobai Li, Guoying Zhao

Recent studies demonstrated that the average heart rate (HR) can be measured from facial videos based on non-contact remote photoplethysmography (rPPG).

Emotion Recognition Heart Rate Variability +1

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