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With the development of deep learning, the structure of convolution neural network is becoming more and more complex and the performance of object recognition is getting better. However, the classification mechanism of convolution neural…

Computer Vision and Pattern Recognition · Computer Science 2019-10-22 Yongpei Zhu , Hongwei Fan , Kehong Yuan

Facial expressions vary from person to person, and the brightness, contrast, and resolution of every random image are different. This is why recognizing facial expressions is very difficult. This article proposes an efficient system for…

Computer Vision and Pattern Recognition · Computer Science 2022-09-26 Faisal Ghaffar

Diversity of the features extracted by deep neural networks is important for enhancing the model generalization ability and accordingly its performance in different learning tasks. Facial expression recognition in the wild has attracted…

Computer Vision and Pattern Recognition · Computer Science 2023-02-21 Negar Heidari , Alexandros Iosifidis

This paper proposes a new framework for the eye centers localization by the joint use of encoding of normalized image projections and a Multi Layer Perceptron (MLP) classifier. The encoding is novel and it consists in identifying the…

Computer Vision and Pattern Recognition · Computer Science 2015-03-27 Laura Florea , Corneliu Florea , Constantin Vertan

Facial expression analysis is central to understanding human behavior, yet existing coding systems such as the Facial Action Coding System (FACS) are constrained by limited coverage and costly manual annotation. In this work, we introduce…

Computer Vision and Pattern Recognition · Computer Science 2025-10-03 Minh Tran , Maksim Siniukov , Zhangyu Jin , Mohammad Soleymani

Recognizing facial expressions from static images or video sequences is a widely studied but still challenging problem. The recent progresses obtained by deep neural architectures, or by ensembles of heterogeneous models, have shown that…

Computer Vision and Pattern Recognition · Computer Science 2018-10-25 Lisa Graziani , Stefano Melacci , Marco Gori

Human facial images encode a rich spectrum of information, encompassing both stable identity-related traits and mutable attributes such as pose, expression, and emotion. While recent advances in image generation have enabled high-quality…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Kazuaki Mishima , Antoni Bigata Casademunt , Stavros Petridis , Maja Pantic , Kenji Suzuki

In this paper, we propose a novel image descriptor called Forming Local Intersections of Projections (FLIP) and its multi-resolution version (mFLIP) for representing histopathology images. The descriptor is based on the Radon transform…

Computer Vision and Pattern Recognition · Computer Science 2020-08-11 Aditya Sriram , Shivam Kalra , Morteza Babaie , Brady Kieffer , Waddah Al Drobi , Shahryar Rahnamayan , Hany Kashani , Hamid R. Tizhoosh

Existing deraining models process all rainy images within a single network. However, different rain patterns have significant variations, which makes it challenging for a single network to handle diverse types of raindrops and streaks. To…

Computer Vision and Pattern Recognition · Computer Science 2025-06-03 Cong Guan , Osamu Yoshie

Multimodal AI models capable of associating images and text hold promise for numerous domains, ranging from automated image captioning to accessibility applications for blind and low-vision users. However, uncertainty about bias has in some…

Computer Vision and Pattern Recognition · Computer Science 2024-08-29 Robert Wolfe , Aayushi Dangol , Alexis Hiniker , Bill Howe

With the strong robusticity on illumination variations, near-infrared (NIR) can be an effective and essential complement to visible (VIS) facial expression recognition in low lighting or complete darkness conditions. However, facial…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Bingjun Luo , Haowen Wang , Jinpeng Wang , Junjie Zhu , Xibin Zhao , Yue Gao

In domains where computational resources and labeled data are limited, such as in robotics, deep networks with millions of weights might not be the optimal solution. In this paper, we introduce a connectivity scheme for pyramidal…

Computer Vision and Pattern Recognition · Computer Science 2021-03-24 Henrique Siqueira , Pablo Barros , Sven Magg , Cornelius Weber , Stefan Wermter

We describe a deep learning based method for estimating 3D facial expression coefficients. Unlike previous work, our process does not relay on facial landmark detection methods as a proxy step. Recent methods have shown that a CNN can be…

Computer Vision and Pattern Recognition · Computer Science 2018-02-05 Feng-Ju Chang , Anh Tuan Tran , Tal Hassner , Iacopo Masi , Ram Nevatia , Gerard Medioni

Facial expression is related to facial muscle contractions and different muscle movements correspond to different emotional states. For micro-expression recognition, the muscle movements are usually subtle, which has a negative impact on…

Computer Vision and Pattern Recognition · Computer Science 2023-07-28 Zhifeng Wang , Kaihao Zhang , Wenhan Luo , Ramesh Sankaranarayana

Human emotion recognition plays a crucial role in facilitating seamless interactions between humans and computers. In this paper, we present our innovative methodology for tackling the Valence-Arousal (VA) Estimation Challenge, the…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Weiwei Zhou , Chenkun Ling , Zefeng Cai

Representation learning and feature disentanglement have garnered significant research interest in the field of facial expression recognition (FER). The inherent ambiguity of emotion labels poses challenges for conventional supervised…

Computer Vision and Pattern Recognition · Computer Science 2024-10-11 Jia Li , Jiantao Nie , Dan Guo , Richang Hong , Meng Wang

Reading text in real-world scenarios often requires understanding the context surrounding it, especially when dealing with poor-quality text. However, current scene text recognizers are unaware of the bigger picture as they operate on…

Computer Vision and Pattern Recognition · Computer Science 2023-07-25 Aviad Aberdam , David Bensaïd , Alona Golts , Roy Ganz , Oren Nuriel , Royee Tichauer , Shai Mazor , Ron Litman

The potential of the nasal region for expression robust 3D face recognition is thoroughly investigated by a novel five-step algorithm. First, the nose tip location is coarsely detected and the face is segmented, aligned and the nasal region…

Computer Vision and Pattern Recognition · Computer Science 2019-01-03 Mehryar Emambakhsh , Adrian Evans

In this paper, a multi-resolution feature extraction algorithm for face recognition is proposed based on two-dimensional discrete wavelet transform (2D-DWT), which efficiently exploits the local spatial variations in a face image. For the…

Computer Vision and Pattern Recognition · Computer Science 2011-10-10 Hafiz Imtiaz , Shaikh Anowarul Fattah

This paper presents Hierarchical Network Dissection, a general pipeline to interpret the internal representation of face-centric inference models. Using a probabilistic formulation, our pipeline pairs units of the model with concepts in our…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Divyang Teotia , Agata Lapedriza , Sarah Ostadabbas