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Face recognition (FR) is an important task in pattern recognition and computer vision. Sparse representation (SR) has been demonstrated to be a powerful framework for FR. In general, an SR algorithm treats each face in a training dataset as…

Computer Vision and Pattern Recognition · Computer Science 2013-09-19 Taiyong Li , Zhilin Zhang

State-of-the-art face recognition algorithms are able to achieve good performance when sufficient training images are provided. Unfortunately, the number of facial images is limited in some real face recognition applications. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2020-12-29 Guiying Zhang , Yuxin Cui , Yong Zhao , Jianjun Hu

We study representation learning for Offline Reinforcement Learning (RL), focusing on the important task of Offline Policy Evaluation (OPE). Recent work shows that, in contrast to supervised learning, realizability of the Q-function is not…

Machine Learning · Computer Science 2022-07-14 Jonathan D. Chang , Kaiwen Wang , Nathan Kallus , Wen Sun

In the field of face recognition, Sparse Representation (SR) has received considerable attention during the past few years. Most of the relevant literature focuses on holistic descriptors in closed-set identification applications. The…

Computer Vision and Pattern Recognition · Computer Science 2014-12-19 Yongkang Wong , Mehrtash T. Harandi , Conrad Sanderson

Embedding methods have achieved success in face recognition by comparing facial features in a latent semantic space. However, in a fully unconstrained face setting, the facial features learned by the embedding model could be ambiguous or…

Computer Vision and Pattern Recognition · Computer Science 2019-08-08 Yichun Shi , Anil K. Jain

Ensemble methods, traditionally built with independently trained de-correlated models, have proven to be efficient methods for reducing the remaining residual generalization error, which results in robust and accurate methods for real-world…

Computer Vision and Pattern Recognition · Computer Science 2020-01-20 Henrique Siqueira , Sven Magg , Stefan Wermter

Recently, we have seen an increase in the global facial recognition market size. Despite significant advances in face recognition technology with the adoption of convolutional neural networks, there are still open challenges, such as when…

Computer Vision and Pattern Recognition · Computer Science 2021-10-19 Marcus de Assis Angeloni , Helio Pedrini

There are many facts affecting human face recognition, such as pose, occlusion, illumination, age, etc. First and foremost are large pose and occlusion problems, which can even result in more than 10% performance degradation. Pose-invariant…

Computer Vision and Pattern Recognition · Computer Science 2019-02-27 Qingyan Duan , Lei Zhang

This paper presents a iterative optimization method, explicit shape regression, for face pose detection and localization. The regression function is learnt to find out the entire facial shape and minimize the alignment errors. A cascaded…

Computer Vision and Pattern Recognition · Computer Science 2017-09-12 Wenye He

Open-set face recognition refers to a scenario in which biometric systems have incomplete knowledge of all existing subjects. Therefore, they are expected to prevent face samples of unregistered subjects from being identified as previously…

Computer Vision and Pattern Recognition · Computer Science 2023-08-25 Rafael Henrique Vareto , Manuel Günther , William Robson Schwartz

The problem of detecting a small number of outliers in a large dataset is an important task in many fields from fraud detection to high-energy physics. Two approaches have emerged to tackle this problem: unsupervised and supervised.…

Machine Learning · Computer Science 2015-07-30 Barbora Micenková , Brian McWilliams , Ira Assent

In this paper, we seek to draw connections between the frontal and profile face images in an abstract embedding space. We exploit this connection using a coupled-encoder network to project frontal/profile face images into a common latent…

Computer Vision and Pattern Recognition · Computer Science 2022-09-09 Mohammad Saeed Ebrahimi Saadabadi , Sahar Rahimi Malakshan , Sobhan Soleymani , Moktari Mostofa , Nasser M. Nasrabadi

Face manipulation techniques develop rapidly and arouse widespread public concerns. Despite that vanilla convolutional neural networks achieve acceptable performance, they suffer from the overfitting issue. To relieve this issue, there is a…

Computer Vision and Pattern Recognition · Computer Science 2022-06-07 Yunsheng Ni , Depu Meng , Changqian Yu , Chengbin Quan , Dongchun Ren , Youjian Zhao

Face presentation attacks (PA), also known as spoofing attacks, pose a substantial threat to biometric systems that rely on facial recognition systems, such as access control systems, mobile payments, and identity verification systems. To…

Computer Vision and Pattern Recognition · Computer Science 2023-07-12 Usman Muhammad , Md Ziaul Hoque , Mourad Oussalah , Jorma Laaksonen

Model ensembles are becoming one of the most effective approaches for improving object detection performance already optimized for a single detector. Conventional methods directly fuse bounding boxes but typically fail to consider proposal…

Computer Vision and Pattern Recognition · Computer Science 2021-05-10 Mingyuan Mao , Baochang Zhang , David Doermann , Jie Guo , Shumin Han , Yuan Feng , Xiaodi Wang , Errui Ding

Face recognition is a popular application of pat- tern recognition methods, and it faces challenging problems including illumination, expression, and pose. The most popular way is to learn the subspaces of the face images so that it could…

Computer Vision and Pattern Recognition · Computer Science 2014-02-25 Huanguo Zhang , Sha Lv , Wei Li , Xun Qu

Probabilistic Face Embeddings (PFE) can improve face recognition performance in unconstrained scenarios by integrating data uncertainty into the feature representation. However, existing PFE methods tend to be over-confident in estimating…

Computer Vision and Pattern Recognition · Computer Science 2021-06-23 Kai Chen , Qi Lv , Taihe Yi

In this paper, we propose a robust 3D face recognition system which can handle pose as well as occlusions in real world. The system at first takes as input, a 3D range image, simultaneously registers it using ICP(Iterative Closest Point)…

Computer Vision and Pattern Recognition · Computer Science 2014-08-19 Parama Bagchi , Debotosh Bhattacharjee , Mita Nasipuri

Blur in facial images significantly impedes the efficiency of recognition approaches. However, most existing blind deconvolution methods cannot generate satisfactory results due to their dependence on strong edges, which are sufficient in…

Computer Vision and Pattern Recognition · Computer Science 2019-04-19 Dayong Tian , Dacheng Tao

In this paper we propose an iterative method to address the face identification problem with block occlusions. Our approach utilizes a robust representation based on two characteristics in order to model contiguous errors (e.g., block…

Computer Vision and Pattern Recognition · Computer Science 2017-11-15 Michael Iliadis , Haohong Wang , Rafael Molina , Aggelos K. Katsaggelos
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