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In order to better understand feature learning in neural networks, we propose a framework for understanding linear models in tangent feature space where the features are allowed to be transformed during training. We consider linear…

Machine Learning · Computer Science 2024-02-22 Daniel LeJeune , Sina Alemohammad

Adapting a deep learning model to a specific target individual is a challenging facial expression recognition (FER) task that may be achieved using unsupervised domain adaptation (UDA) methods. Although several UDA methods have been…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Muhammad Osama Zeeshan , Muhammad Haseeb Aslam , Soufiane Belharbi , Alessandro Lameiras Koerich , Marco Pedersoli , Simon Bacon , Eric Granger

Despite rapid advances in face recognition, there remains a clear gap between the performance of still image-based face recognition and video-based face recognition, due to the vast difference in visual quality between the domains and the…

Computer Vision and Pattern Recognition · Computer Science 2017-08-15 Kihyuk Sohn , Sifei Liu , Guangyu Zhong , Xiang Yu , Ming-Hsuan Yang , Manmohan Chandraker

In face recognition, designing margin-based (e.g., angular, additive, additive angular margins) softmax loss functions plays an important role in learning discriminative features. However, these hand-crafted heuristic methods are…

Computer Vision and Pattern Recognition · Computer Science 2020-07-14 Xiaobo Wang , Shuo Wang , Cheng Chi , Shifeng Zhang , Tao Mei

Unsupervised domain adaptation for object detection is a challenging problem with many real-world applications. Unfortunately, it has received much less attention than supervised object detection. Models that try to address this task tend…

Computer Vision and Pattern Recognition · Computer Science 2021-06-11 Hongsong Wang , Shengcai Liao , Ling Shao

Since the beginning of world-wide COVID-19 pandemic, facial masks have been recommended to limit the spread of the disease. However, these masks hide certain facial attributes. Hence, it has become difficult for existing face recognition…

Computer Vision and Pattern Recognition · Computer Science 2023-09-08 Yooshin Cho , Hanbyel Cho , Hyeong Gwon Hong , Jaesung Ahn , Dongmin Cho , JungWoo Chang , Junmo Kim

Few-shot learning has made impressive strides in addressing the crucial challenges of recognizing unknown samples from novel classes in target query sets and managing visual shifts between domains. However, existing techniques fall short…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Debabrata Pal , Deeptej More , Sai Bhargav , Dipesh Tamboli , Vaneet Aggarwal , Biplab Banerjee

Unsupervised representation learning has been extensively employed in anomaly detection, achieving impressive performance. Extracting valuable feature vectors that can remarkably improve the performance of anomaly detection are essential in…

Machine Learning · Computer Science 2022-04-26 Muhao Xu , Xueying Zhou , Xizhan Gao , WeiKai He , Sijie Niu

While deep learning (DL) approaches are reaching human-level performance for many tasks, including for diagnostics AI, the focus is now on challenges possibly affecting DL deployment, including AI privacy, domain generalization, and…

Computer Vision and Pattern Recognition · Computer Science 2021-04-05 Neil Joshi , Phil Burlina

Domain adaptation aims to exploit the knowledge in source domain to promote the learning tasks in target domain, which plays a critical role in real-world applications. Recently, lots of deep learning approaches based on autoencoders have…

Machine Learning · Computer Science 2019-11-01 Shuai Yang , Hao Wang , Yuhong Zhang , Pei-Pei Li , Yi Zhu , Xuegang Hu

Recent work on background subtraction has shown developments on two major fronts. In one, there has been increasing sophistication of probabilistic models, from mixtures of Gaussians at each pixel [7], to kernel density estimates at each…

Computer Vision and Pattern Recognition · Computer Science 2016-11-17 Manjunath Narayana , Allen Hanson , Erik Learned-Miller

With the increased deployment of face recognition systems in our daily lives, face presentation attack detection (PAD) is attracting much attention and playing a key role in securing face recognition systems. Despite the great performance…

Computer Vision and Pattern Recognition · Computer Science 2021-11-03 Meiling Fang , Naser Damer , Florian Kirchbuchner , Arjan Kuijper

Learning predictive models in new domains with scarce training data is a growing challenge in modern supervised learning scenarios. This incentivizes developing domain adaptation methods that leverage the knowledge in known domains (source)…

Machine Learning · Computer Science 2023-05-02 Mohammadreza Ebrahimi , Yidong Chai , Hao Helen Zhang , Hsinchun Chen

Recognition of low resolution face images is a challenging problem in many practical face recognition systems. Methods have been proposed in the face recognition literature for the problem which assume that the probe is low resolution, but…

Computer Vision and Pattern Recognition · Computer Science 2017-07-11 Sumit Shekhar , Vishal M. Patel , Rama Chellappa

Radar target recognition (RTR), as a key technology of intelligent radar systems, has been well investigated. Accurate RTR at low signal-to-noise ratios (SNRs) still remains an open challenge. Most existing methods are based on a single…

Signal Processing · Electrical Eng. & Systems 2022-06-14 Han Meng , Yuexing Peng , Wei Xiang , Xu Pang , Wenbo Wang

Object detection in camera images, using deep learning has been proven successfully in recent years. Rising detection rates and computationally efficient network structures are pushing this technique towards application in production…

Computer Vision and Pattern Recognition · Computer Science 2020-05-18 Felix Nobis , Maximilian Geisslinger , Markus Weber , Johannes Betz , Markus Lienkamp

We present a neural point cloud rendering pipeline through a novel multi-frequency-aware patch adversarial learning framework. The proposed approach aims to improve the rendering realness by minimizing the spectrum discrepancy between real…

Computer Vision and Pattern Recognition · Computer Science 2022-10-10 Jay Karhade , Haiyue Zhu , Ka-Shing Chung , Rajesh Tripathy , Wei Lin , Marcelo H. Ang

In practical application, the performance of recognition network usually decreases when being applied on super-resolution images. In this paper, we propose a feature-based recognition network combined with GAN (FGAN). Our network improves…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Jing Hu , Meiqi Zhang , Rui Zhang

Heterogeneous face matching is a challenge issue in face recognition due to large domain difference as well as insufficient pairwise images in different modalities during training. This paper proposes a coupled deep learning (CDL) approach…

Computer Vision and Pattern Recognition · Computer Science 2017-11-17 Xiang Wu , Lingxiao Song , Ran He , Tieniu Tan

Facial landmarks are highly correlated with each other since a certain landmark can be estimated by its neighboring landmarks. Most of the existing deep learning methods only use one fully-connected layer called shape prediction layer to…

Computer Vision and Pattern Recognition · Computer Science 2019-04-26 Zhiwen Shao , Hengliang Zhu , Xin Tan , Yangyang Hao , Lizhuang Ma
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