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Dimensionality reduction represents a critical preprocessing step in order to increase the efficiency and the performance of many hyperspectral imaging algorithms. However, dimensionality reduction algorithms, such as the Principal…

Machine Learning · Computer Science 2024-03-28 E. Martel , R. Lazcano , J. Lopez , D. Madroñal , R. Salvador , S. Lopez , E. Juarez , R. Guerra , C. Sanz , R. Sarmiento

The human face constantly conveys information, both consciously and subconsciously. However, as basic as it is for humans to visually interpret this information, it is quite a big challenge for machines. Conventional semantic facial feature…

Machine Learning · Computer Science 2016-10-21 Amogh Gudi

In this paper we describe the anatomy of a real-time facial analysis system. The system recognizes the age, gender and facial expression from users in appearing in front of the camera. All components are based on convolutional neural…

Computer Vision and Pattern Recognition · Computer Science 2018-09-17 Janne Tommola , Pedram Ghazi , Bishwo Adhikari , Heikki Huttunen

Face recognition under extreme head poses is a challenging task. Ideally, a face recognition system should perform well across different head poses, which is known as pose-invariant face recognition. To achieve pose invariance, current…

Computer Vision and Pattern Recognition · Computer Science 2025-06-06 Patrik Mesec , Alan Jović

In this paper, we propose a framework for disentangling the appearance and geometry representations in the face recognition task. To provide supervision for this aim, we generate geometrically identical faces by incorporating spatial…

Computer Vision and Pattern Recognition · Computer Science 2020-01-15 Ali Dabouei , Fariborz Taherkhani , Sobhan Soleymani , Jeremy Dawson , Nasser M. Nasrabadi

We address the problem of bias in automated face recognition and demographic attribute estimation algorithms, where errors are lower on certain cohorts belonging to specific demographic groups. We present a novel de-biasing adversarial…

Computer Vision and Pattern Recognition · Computer Science 2020-08-03 Sixue Gong , Xiaoming Liu , Anil K. Jain

Face alignment, which fits a face model to an image and extracts the semantic meanings of facial pixels, has been an important topic in the computer vision community. However, most algorithms are designed for faces in small to medium poses…

Computer Vision and Pattern Recognition · Computer Science 2018-04-04 Xiangyu Zhu , Xiaoming Liu , Zhen Lei , Stan Z. Li

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

The modern surge in camera usage alongside widespread computer vision technology applications poses significant privacy and security concerns. Current artificial intelligence (AI) technologies aid in recognizing relevant events and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Jhon Lopez , Carlos Hinojosa , Henry Arguello , Bernard Ghanem

Face detection is an essential step in many computer vision applications like surveillance, tracking, medical analysis, facial expression analysis etc. Several approaches have been made in the direction of face detection. Among them,…

Computer Vision and Pattern Recognition · Computer Science 2015-05-14 Anjith George , Anirban Dasgupta , Aurobinda Routray

In this paper we have tried to compare the various face recognition models against their classical problems. We look at the methods followed by these approaches and evaluate to what extent they are able to solve the problems. All methods…

Computer Vision and Pattern Recognition · Computer Science 2015-02-17 Dharini S. , Guru Prasad M. , Hari haran. V. , Kiran Tej J. L. , Kunal Ghosh

Principal component analysis (PCA), a ubiquitous dimensionality reduction technique in signal processing, searches for a projection matrix that minimizes the mean squared error between the reduced dataset and the original one. Since…

Machine Learning · Computer Science 2022-08-25 Guilherme Dean Pelegrina , Leonardo Tomazeli Duarte

The technology of face recognition has made some progress in recent years. After studying the PCA, 2DPCA, R1-PCA, L1-PCA, KPCA and KECA algorithms, in this paper ECA (2DECA) is proposed by extracting features in PCA (2DPCA) based on Renyi…

Computer Vision and Pattern Recognition · Computer Science 2019-12-24 Xing Liu , Xiao-Jun Wu , Zhen Liu , He-Feng Yin

A wealth of angle problems occur when facial recognition is performed: At present, the feature extraction network presents eigenvectors with large differences between the frontal face and profile face recognition of the same person in many…

Computer Vision and Pattern Recognition · Computer Science 2020-03-23 Xinyu Zhang , Yang Zhao , Hao Zhang

Recent developments in machine learning have shown that successful models do not rely only on huge amounts of data but the right kind of data. We show in this paper how this data-centric approach can be facilitated in a decentralized manner…

Computer Vision and Pattern Recognition · Computer Science 2022-10-31 M. R. Ahan , Robin Lehmann , Richard Blythman

The paper investigates a hypothesis that our visual system groups visual cues based on how they form a surface, or more specifically triangulation derived from the visual cues. To test our hypothesis, we compare shape recognition with three…

Computer Vision and Pattern Recognition · Computer Science 2013-05-13 Toshiro Kubota , Jessica Ranck , Briley Acker , Herman De Haan

This paper introduces a novel method for human face detection with its orientation by using wavelet, principle component analysis (PCA) and redial basis networks. The input image is analyzed by two-dimensional wavelet and a two-dimensional…

Computer Vision and Pattern Recognition · Computer Science 2010-09-28 S. M. Kamruzzaman , Firoz Ahmed Siddiqi , Md. Saiful Islam , Md. Emdadul Haque , Mohammad Shamsul Alam

Face detection is one of the challenging tasks in computer vision. Human face detection plays an essential role in the first stage of face processing applications such as face recognition, face tracking, image database management, etc. In…

Computer Vision and Pattern Recognition · Computer Science 2017-02-16 Ali Sharifara , Mohd Shafry Mohd Rahim , Farhad Navabifar , Dylan Ebert , Amir Ghaderi , Michalis Papakostas

Nowadays research has expanded to extracting auxiliary information from various biometric techniques like fingerprints, face, iris, palm and voice . This information contains some major features like gender, age, beard, mustache, scars,…

Computer Vision and Pattern Recognition · Computer Science 2021-02-02 Raunak Dave , Ankit Vyas , Nikita P Desai

Face recognition systems (FRS) exhibit significant accuracy differences based on the user's gender. Since such a gender gap reduces the trustworthiness of FRS, more recent efforts have tried to find the causes. However, these studies make…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Paul Jonas Kurz , Haiyu Wu , Kevin W. Bowyer , Philipp Terhörst