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We propose a method to address challenges in unconstrained face detection, such as arbitrary pose variations and occlusions. First, a new image feature called Normalized Pixel Difference (NPD) is proposed. NPD feature is computed as the…

Computer Vision and Pattern Recognition · Computer Science 2015-09-08 Shengcai Liao , Anil K. Jain , Stan Z. Li

Recently, video classification attracts intensive research efforts. However, most existing works are based on framelevel visual features, which might fail to model the temporal information, e.g. characteristics accumulated along time. In…

Computer Vision and Pattern Recognition · Computer Science 2016-08-18 Haimin Zhang

This study investigates the key characteristics and suitability of widely used Facial Expression Recognition (FER) datasets for training deep learning models. In the field of affective computing, FER is essential for interpreting human…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 F. Xavier Gaya-Morey , Cristina Manresa-Yee , Célia Martinie , Jose M. Buades-Rubio

Heterogeneous Face Recognition (HFR) aims to match faces across different domains (e.g., visible to near-infrared images), which has been widely applied in authentication and forensics scenarios. However, HFR is a challenging problem…

Computer Vision and Pattern Recognition · Computer Science 2022-06-13 Ziming Yang , Jian Liang , Chaoyou Fu , Mandi Luo , Xiao-Yu Zhang

Face relighting aims to synthesize realistic portraits under novel illumination while preserving identity and geometry. However, progress remains constrained by the limited availability of large-scale, physically consistent illumination…

Computer Vision and Pattern Recognition · Computer Science 2025-12-17 Zhuo Chen , Chengqun Yang , Zhuo Su , Zheng Lv , Jingnan Gao , Xiaoyuan Zhang , Xiaokang Yang , Yichao Yan

Facial feature tracking is an active area in computer vision due to its relevance to many applications. It is a nontrivial task, since faces may have varying facial expressions, poses or occlusions. In this paper, we address this problem by…

Computer Vision and Pattern Recognition · Computer Science 2017-09-19 Yue Wu , Zuoguan Wang , Qiang Ji

State-of-the-art face recognition (FR) approaches have shown remarkable results in predicting whether two faces belong to the same identity, yielding accuracies between 92% and 100% depending on the difficulty of the protocol. However, the…

Computer Vision and Pattern Recognition · Computer Science 2022-05-30 Stefan Hörmann , Tianlin Kong , Torben Teepe , Fabian Herzog , Martin Knoche , Gerhard Rigoll

This paper demonstrates two different fusion techniques at two different levels of a human face recognition process. The first one is called data fusion at lower level and the second one is the decision fusion towards the end of the…

Computer Vision and Pattern Recognition · Computer Science 2011-06-20 Mrinal Kanti Bhowmik , Gautam Majumdar , Debotosh Bhattacharjee , Dipak Kumar Basu , Mita Nasipuri

In this paper, we proposed a novel pipeline for image-level classification in the hyperspectral images. By doing this, we show that the discriminative spectral information at image-level features lead to significantly improved performance…

Computer Vision and Pattern Recognition · Computer Science 2016-05-12 Vivek Sharma , Luc Van Gool

In last few decades, a lot of progress has been made in the field of face detection. Various face detection methods have been proposed by numerous researchers working in this area. The two well-known benchmarking platform: the FDDB and…

Computer Vision and Pattern Recognition · Computer Science 2019-10-25 Mohammad Iqbal Nouyed , Guodong Guo

In the human ear, the basilar membrane plays a central role in sound recognition. When excited by sound, this membrane responds with a frequency-dependent displacement pattern that is detected and identified by the auditory hair cells…

Audio and Speech Processing · Electrical Eng. & Systems 2020-04-10 Woo Seok Lee , Hyunjae Kim , Andrew N. Cleland , Kang-Hun Ahn

Face recognition has been widely accepted as a means of identification in applications ranging from border control to security in the banking sector. Surprisingly, while widely accepted, we still lack the understanding of uniqueness or…

Computer Vision and Pattern Recognition · Computer Science 2022-12-09 Michal Balazia , S L Happy , Francois Bremond , Antitza Dantcheva

Automated face recognition and identification softwares are becoming part of our daily life; it finds its abode not only with Facebook's auto photo tagging, Apple's iPhoto, Google's Picasa, Microsoft's Kinect, but also in Homeland Security…

Computer Vision and Pattern Recognition · Computer Science 2015-06-22 Poonam Yadav

With the widespread of user-generated Internet videos, emotion recognition in those videos attracts increasing research efforts. However, most existing works are based on framelevel visual features and/or audio features, which might fail to…

Computer Vision and Pattern Recognition · Computer Science 2016-08-04 Haimin Zhang , Min Xu

We study the problem of performing face verification with an efficient neural model $f$. The efficiency of $f$ stems from simplifying the face verification problem from an embedding nearest neighbor search into a binary problem; each user…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Amit Rozner , Barak Battash , Ofir Lindenbaum , Lior Wolf

Cross-resolution face recognition has become a challenging problem for modern deep face recognition systems. It aims at matching a low-resolution probe image with high-resolution gallery images registered in a database. Existing methods…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Yuhang Lu , Touradj Ebrahimi

Unconstrained face recognition is an active research area among computer vision and biometric researchers for many years now. Still the problem of face recognition in low quality photos has not been well-studied so far. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2023-07-13 Iqbal Nouyed , Na Zhang

The technologically-relevant task of feature extraction from data performed in deep-learning systems is routinely accomplished as repeated fast Fourier transforms (FFT) electronically in prevalent domain-specific architectures such as in…

Robust face detection is one of the most important pre-processing steps to support facial expression analysis, facial landmarking, face recognition, pose estimation, building of 3D facial models, etc. Although this topic has been intensely…

Computer Vision and Pattern Recognition · Computer Science 2017-01-03 Yutong Zheng , Chenchen Zhu , Khoa Luu , Chandrasekhar Bhagavatula , T. Hoang Ngan Le , Marios Savvides

This paper presents a novel face and periocular biometric fusion at feature level using canonical correlation analysis. Face recognition itself has limitations such as illumination, pose, expression, occlusion etc. Also, periocular…

Computer Vision and Pattern Recognition · Computer Science 2016-04-07 N. S. Lakshmiprabha