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Micro-expressions are short bursts of emotion that are difficult to hide. Their detection in children is an important cue to assist psychotherapists in conducting better therapy. However, existing research on the detection of…

Computer Vision and Pattern Recognition · Computer Science 2025-03-28 Nikin~Matharaarachchi , Muhammad~Fermi Pasha , Sonya~Coleman , Kah PengWong

The subtleness of human facial expressions and a large degree of variation in the level of intensity to which a human expresses them is what makes it challenging to robustly classify and generate images of facial expressions. Lack of good…

Computer Vision and Pattern Recognition · Computer Science 2022-03-14 J. Rafid Siddiqui

Large Vision-Language Models (LVLMs) have achieved strong performance on vision-language tasks, particularly Visual Question Answering (VQA). While prior work has explored unimodal biases in VQA, the problem of selection bias in…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Md. Atabuzzaman , Ali Asgarov , Chris Thomas

Memory is essential for large vision-language models (LVLMs) to handle long, multimodal interactions, with two method directions providing this capability: long-context LVLMs and memory-augmented agents. However, no existing benchmark…

Computer Vision and Pattern Recognition · Computer Science 2026-05-15 Xiyu Ren , Zhaowei Wang , Yiming Du , Zhongwei Xie , Chi Liu , Xinlin Yang , Haoyue Feng , Wenjun Pan , Tianshi Zheng , Baixuan Xu , Zhengnan Li , Yangqiu Song , Ginny Wong , Simon See

Existing video large language models (VLLMs) primarily leverage prompt agnostic visual encoders, which extract untargeted facial representations without awareness of the queried information, leading to the loss of task critical cues. To…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Fufangchen Zhao , Songbai Tan , Xuerui Qiu , Linrui Xun , Wenhao Jiang , Jinkai Zheng , Hehe Fan , Jian Gao , Danfeng Yan , Ming Li

This paper considers the problem of Multi-Hop Video Question Answering (MH-VidQA) in long-form egocentric videos. This task not only requires to answer visual questions, but also to localize multiple relevant time intervals within the video…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Qirui Chen , Shangzhe Di , Weidi Xie

Understanding emotions accurately is essential for fields like human-computer interaction. Due to the complexity of emotions and their multi-modal nature (e.g., emotions are influenced by facial expressions and audio), researchers have…

Computer Vision and Pattern Recognition · Computer Science 2025-01-17 Qize Yang , Detao Bai , Yi-Xing Peng , Xihan Wei

This paper details the methodology and results of the EmotioNet challenge. This challenge is the first to test the ability of computer vision algorithms in the automatic analysis of a large number of images of facial expressions of emotion…

Computer Vision and Pattern Recognition · Computer Science 2017-03-06 C. Fabian Benitez-Quiroz , Ramprakash Srinivasan , Qianli Feng , Yan Wang , Aleix M. Martinez

Speech-preserving facial expression manipulation (SPFEM) aims to enhance human expressiveness without altering mouth movements tied to the original speech. A primary challenge in this domain is the scarcity of paired data, namely aligned…

Computer Vision and Pattern Recognition · Computer Science 2026-04-29 Tianshui Chen , Yujie Zhu , Jianman Lin , Zhijing Yang , Chunmei Qing , Feng Gao , Liang Lin

A large part of human communication relies on nonverbal cues such as facial expressions, eye contact, and body language. Unlike language or sign language, such nonverbal communication lacks formal rules, requiring complex reasoning based on…

Computation and Language · Computer Science 2025-08-20 Shintaro Ozaki , Kazuki Hayashi , Miyu Oba , Yusuke Sakai , Hidetaka Kamigaito , Taro Watanabe

Unlike prevalent facial expressions, micro expressions have subtle, involuntary muscle movements which are short-lived in nature. These minute muscle movements reflect true emotions of a person. Due to the short duration and low intensity,…

Computer Vision and Pattern Recognition · Computer Science 2020-01-08 Monu Verma , Santosh Kumar Vipparthi , Girdhari Singh , Subrahmanyam Murala

In this work, we introduce long-video masked-embedding autoencoders (LV-MAE), a self-supervised learning framework for long video representation. Our approach treats short- and long-span dependencies as two separate tasks. Such decoupling…

Computer Vision and Pattern Recognition · Computer Science 2025-10-08 Ilan Naiman , Emanuel Ben-Baruch , Oron Anschel , Alon Shoshan , Igor Kviatkovsky , Manoj Aggarwal , Gerard Medioni

As AI becomes more closely integrated with peoples' daily activities, socially intelligent AI that can understand and interact seamlessly with humans in daily lives is increasingly important. However, current works in AI social reasoning…

Computation and Language · Computer Science 2025-12-02 Hengzhi Li , Megan Tjandrasuwita , Yi R. Fung , Armando Solar-Lezama , Paul Pu Liang

Facial micro-expression (ME) recognition has posed a huge challenge to researchers for its subtlety in motion and limited databases. Recently, handcrafted techniques have achieved superior performance in micro-expression recognition but at…

Computer Vision and Pattern Recognition · Computer Science 2018-05-23 Huai-Qian Khor , John See , Raphael C. W. Phan , Weiyao Lin

Facial expression recognition, as a vital computer vision task, is garnering significant attention and undergoing extensive research. Although facial expression recognition algorithms demonstrate impressive performance on high-resolution…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Jingyi Shi

Multimodal large language models have recently achieved remarkable progress in video question answering (VideoQA) by jointly processing visual, textual, and audio information. However, it remains unclear which video representations are most…

Information Retrieval · Computer Science 2025-10-15 Zhi Li , Yanan Wang , Hao Niu , Julio Vizcarra , Masato Taya

The detection of micro-expression Action Units (AUs) is a formidable challenge in affective computing, pivotal for decoding subtle, involuntary human emotions. While Large Language Models (LLMs) demonstrate profound reasoning abilities,…

Computer Vision and Pattern Recognition · Computer Science 2025-07-30 Zhishu Liu , Kaishen Yuan , Bo Zhao , Yong Xu , Zitong Yu

The sequential structure of videos poses a challenge to the ability of multimodal large language models (MLLMs) to locate multi-frame evidence and conduct multimodal reasoning. However, existing video benchmarks mainly focus on…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Kejian Zhu , Zhuoran Jin , Hongbang Yuan , Jiachun Li , Shangqing Tu , Pengfei Cao , Yubo Chen , Kang Liu , Jun Zhao

Multimodal Large Language Models (MLLMs) demonstrate impressive problem-solving abilities across a wide range of tasks and domains. However, their capacity for face understanding has not been systematically studied. To address this gap, we…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Kartik Narayan , Vibashan VS , Vishal M. Patel

Complex Visual Question Answering (Complex VQA) tasks, which demand sophisticated multi-modal reasoning and external knowledge integration, present significant challenges for existing large vision-language models (LVLMs) often limited by…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Jingwei Peng , Jiehao Chen , Mateo Alejandro Rojas , Meilin Zhang