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In this paper, we present an approach based on convolutional neural networks (CNNs) for facial expression recognition in a difficult setting with severe occlusions. More specifically, our task is to recognize the facial expression of a…

Computer Vision and Pattern Recognition · Computer Science 2019-11-13 Mariana-Iuliana Georgescu , Radu Tudor Ionescu

Emotion being a subjective thing, leveraging knowledge and science behind labeled data and extracting the components that constitute it, has been a challenging problem in the industry for many years. With the evolution of deep learning in…

Computer Vision and Pattern Recognition · Computer Science 2017-06-07 Prudhvi Raj Dachapally

Deep learning is one of the new and important branches in machine learning. Deep learning refers to a set of algorithms that solve various problems such as images and texts by using various machine learning algorithms in multi-layer neural…

Computer Vision and Pattern Recognition · Computer Science 2019-01-10 Yang Li , Sangwhan Cha

Recognizing the expressions of partially occluded faces is a challenging computer vision problem. Previous expression recognition methods, either overlooked this issue or resolved it using extreme assumptions. Motivated by the fact that the…

Computer Vision and Pattern Recognition · Computer Science 2020-05-14 Hui Ding , Peng Zhou , Rama Chellappa

Facial expressions are important cues to observe human emotions. Facial expression recognition has attracted many researchers for years, but it is still a challenging topic since expression features vary greatly with the head poses,…

Computer Vision and Pattern Recognition · Computer Science 2020-09-15 S. D. Lalitha , K. K. Thyagharajan

Real-world face detection and alignment demand an advanced discriminative model to address challenges by pose, lighting and expression. Illuminated by the deep learning algorithm, some convolutional neural networks based face detection and…

Computer Vision and Pattern Recognition · Computer Science 2017-08-01 Weilin Cong , Sanyuan Zhao , Hui Tian , Jianbing Shen

Deep learning with a convolutional neural network (CNN) has been proved to be very effective in feature extraction and representation of images. For image classification problems, this work aim at finding which classifier is more…

Machine Learning · Computer Science 2015-06-09 Lei Zhang , David Zhang

Facial expressions play an important role in conveying the emotional states of human beings. Recently, deep learning approaches have been applied to image recognition field due to the discriminative power of Convolutional Neural Network…

Computer Vision and Pattern Recognition · Computer Science 2018-07-30 Yingruo Fan , Jacqueline C. K. Lam , Victor O. K. Li

This thesis describes the design and implementation of a smile detector based on deep convolutional neural networks. It starts with a summary of neural networks, the difficulties of training them and new training methods, such as Restricted…

Computer Vision and Pattern Recognition · Computer Science 2015-08-27 Patrick O. Glauner

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 recognition is a challenging task when neural network is applied to pattern recognition. Most of the current recognition research is based on single source facial data, which generally has the disadvantages of low accuracy…

Computer Vision and Pattern Recognition · Computer Science 2021-09-28 Yi Han , Xubin Wang , Zhengyu Lu

We propose a novel end-to-end deep architecture for face landmark detection, based on a deep convolutional and deconvolutional network followed by carefully designed recurrent network structures. The pipeline of this architecture consists…

Computer Vision and Pattern Recognition · Computer Science 2016-11-01 Hanjiang Lai , Shengtao Xiao , Yan Pan , Zhen Cui , Jiashi Feng , Chunyan Xu , Jian Yin , Shuicheng Yan

A significant number of people are suffering from cognitive impairment all over the world. Early detection of cognitive impairment is of great importance to both patients and caregivers. However, existing approaches have their shortages,…

Computer Vision and Pattern Recognition · Computer Science 2021-11-10 Zixiang Fei , Erfu Yang , Leijian Yu , Xia Li , Huiyu Zhou , Wenju Zhou

The purpose of this paper is to design a solution to the problem of facial recognition by use of convolutional neural networks, with the intention of applying the solution in a camera-based home-entry access control system. More…

Computer Vision and Pattern Recognition · Computer Science 2020-11-24 Lars Lien Ankile , Morgan Feet Heggland , Kjartan Krange

Image registration is a classic problem of computer vision with several applications across areas like defence, remote sensing, medicine etc. Feature based image registration methods traditionally used hand-crafted feature extraction…

Computer Vision and Pattern Recognition · Computer Science 2019-07-31 K. Kavitha , B. Thirumala Rao

For many years, the emotion recognition task has remained one of the most interesting and important problems in the field of human-computer interaction. In this study, we consider the emotion recognition task as a classification as well as…

Computer Vision and Pattern Recognition · Computer Science 2020-06-22 Denis Rangulov , Muhammad Fahim

Despite being the appearance-based classifier of choice in recent years, relatively few works have examined how much convolutional neural networks (CNNs) can improve performance on accepted expression recognition benchmarks and, more…

Computer Vision and Pattern Recognition · Computer Science 2017-03-17 Pooya Khorrami , Tom Le Paine , Thomas S. Huang

Facial emotional recognition is one of the essential tools used by recognition psychology to diagnose patients. Face and facial emotional recognition are areas where machine learning is excelling. Facial Emotion Recognition in an…

Computer Vision and Pattern Recognition · Computer Science 2022-08-08 Nitesh Banskota , Abeer Alsadoon , P. W. C. Prasad , Ahmed Dawoud , Tarik A. Rashid , Omar Hisham Alsadoon

Emotion recognition has become an important field of research in the human-computer interactions domain. The latest advancements in the field show that combining visual with audio information lead to better results if compared to the case…

Computer Vision and Pattern Recognition · Computer Science 2020-03-03 Nicolae-Catalin Ristea , Liviu Cristian Dutu , Anamaria Radoi

Convolution is a central operation in Convolutional Neural Networks (CNNs), which applies a kernel to overlapping regions shifted across the image. However, because of the strong correlations in real-world image data, convolutional kernels…