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The Local Binary Patterns (LBP) is a local descriptor proposed by Ojala et al to discriminate texture due to its discriminative power. However, the LBP is sensitive to noise and illumination changes. Consequently, several extensions to the…

Computer Vision and Pattern Recognition · Computer Science 2018-10-30 Yasin Musa Ayami , Aboubayda Shabat , Delene Heukelman

When the predicted sequence length exceeds the length seen during training, the transformer's inference accuracy diminishes. Existing relative position encoding methods, such as those based on the ALiBi technique, address the length…

Machine Learning · Computer Science 2024-03-27 Weiguo Gao

Mathematical expressions (MEs) have complex two-dimensional structures in which symbols can be present at any nested depth like superscripts, subscripts, above, below etc. As MEs are represented using LaTeX format, several text retrieval…

Information Retrieval · Computer Science 2025-11-04 Pavan Kumar Perepu

Depression is a common mental health disorder that can cause consequential symptoms with continuously depressed mood that leads to emotional distress. One category of depression is Concealed Depression, where patients intentionally or…

Computer Vision and Pattern Recognition · Computer Science 2023-08-01 Xiaohui Chen , Tie Luo

Smile is one of the key elements in identifying emotions and present state of mind of an individual. In this work, we propose a cluster of approaches to classify posed and spontaneous smiles using deep convolutional neural network (CNN)…

Computer Vision and Pattern Recognition · Computer Science 2017-02-20 Bappaditya Mandal , David Lee , Nizar Ouarti

Face animation is a challenging task. Existing model-based methods (utilizing 3DMMs or landmarks) often result in a model-like reconstruction effect, which doesn't effectively preserve identity. Conversely, model-free approaches face…

Computer Vision and Pattern Recognition · Computer Science 2025-01-30 Lei Zhu , Yuanqi Chen , Xiaohang Liu , Thomas H. Li , Ge Li

Micro-expressions are brief spontaneous facial expressions that appear on a face when a person conceals an emotion, making them different to normal facial expressions in subtlety and duration. Currently, emotion classes within the CASME II…

Computer Vision and Pattern Recognition · Computer Science 2017-12-05 Adrian K. Davison , Walied Merghani , Moi Hoon Yap

Explainable face recognition is the problem of explaining why a facial matcher matches faces. In this paper, we provide the first comprehensive benchmark and baseline evaluation for explainable face recognition. We define a new evaluation…

Computer Vision and Pattern Recognition · Computer Science 2020-08-04 Jonathan R. Williford , Brandon B. May , Jeffrey Byrne

Recent works on multi-modal emotion recognition move towards end-to-end models, which can extract the task-specific features supervised by the target task compared with the two-phase pipeline. However, previous methods only model the…

Computation and Language · Computer Science 2022-09-21 Yang Wu , Pai Peng , Zhenyu Zhang , Yanyan Zhao , Bing Qin

The use of deep learning techniques for automatic facial expression recognition has recently attracted great interest but developed models are still unable to generalize well due to the lack of large emotion datasets for deep learning. To…

Computer Vision and Pattern Recognition · Computer Science 2018-05-28 Dung Nguyen , Kien Nguyen , Sridha Sridharan , Iman Abbasnejad , David Dean , Clinton Fookes

Multi-person pose estimation is a fundamental and challenging problem to many computer vision tasks. Most existing methods can be broadly categorized into two classes: top-down and bottom-up methods. Both of the two types of methods involve…

Computer Vision and Pattern Recognition · Computer Science 2021-10-19 Yiming Xu , Jiaxin Li , Yiheng Peng , Yan Ding , Hua-Liang Wei

We present techniques for improving performance driven facial animation, emotion recognition, and facial key-point or landmark prediction using learned identity invariant representations. Established approaches to these problems can work…

Computer Vision and Pattern Recognition · Computer Science 2016-05-24 David Rim , Sina Honari , Md Kamrul Hasan , Chris Pal

Event cameras offer a promising sensing modality for face recognition due to their inherent advantages in illumination robustness and privacy-friendliness. However, because event streams lack the stable photometric appearance relied upon by…

Computer Vision and Pattern Recognition · Computer Science 2026-04-09 Qingguo Meng , Xingbo Dong , Zhe Jin , Massimo Tistarelli

Micro-expressions, characterized by transience and subtlety, pose challenges to existing optical flow-based recognition methods. To address this, this paper proposes a dual-branch micro-expression feature extraction network integrated with…

Computer Vision and Pattern Recognition · Computer Science 2026-03-02 Mingjie Zhang , Bo Li , Wanting Liu , Hongyan Cui , Yue Li , Qingwen Li , Hong Li , Ge Gao

In this paper, a deep learning framework is proposed for automatic facial emotion based on deep convolutional networks. In order to increase the generalization ability and the robustness of the method, the dataset size is increased by…

Computer Vision and Pattern Recognition · Computer Science 2026-04-23 Serap Kırbız

This paper presents a computationally efficient yet powerful binary framework for robust facial representation based on image gradients. It is termed as structural binary gradient patterns (SBGP). To discover underlying local structures in…

Computer Vision and Pattern Recognition · Computer Science 2015-06-02 Weilin Huang , Hujun Yin

Electron microscopy (EM) imaging offers unparalleled resolution for analyzing neural tissues, crucial for uncovering the intricacies of synaptic connections and neural processes fundamental to understanding behavioral mechanisms. Recently,…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Ruohua Shi , Qiufan Pang , Lei Ma , Lingyu Duan , Tiejun Huang , Tingting Jiang

Despite their continued popularity, categorical approaches to affect recognition have limitations, especially in real-life situations. Dimensional models of affect offer important advantages for the recognition of subtle expressions and…

Computer Vision and Pattern Recognition · Computer Science 2021-06-16 Vassilios Vonikakis , Stefan Winkler

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

Considering deep neural networks as manifold mappers, the pretrain-then-fine-tune paradigm can be interpreted as a two-stage process: pretrain establishes a broad knowledge base, and fine-tune adjusts the model parameters to activate…