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Face Recognition has been studied for many decades. As opposed to traditional hand-crafted features such as LBP and HOG, much more sophisticated features can be learned automatically by deep learning methods in a data-driven way. In this…

Computer Vision and Pattern Recognition · Computer Science 2015-07-24 Jingtuo Liu , Yafeng Deng , Tao Bai , Zhengping Wei , Chang Huang

Unsupervised disentangled representation learning is a long-standing problem in computer vision. This work proposes a novel framework for performing image clustering from deep embeddings by combining instance-level contrastive learning with…

Machine Learning · Computer Science 2021-10-05 Ramakrishnan Sundareswaran , Jansel Herrera-Gerena , John Just , Ali Jannesari

Face recognition has been extensively studied in computer vision and artificial intelligence communities in recent years. An important issue of face recognition is data privacy, which receives more and more public concerns. As a common…

Computer Vision and Pattern Recognition · Computer Science 2021-05-07 Fan Bai , Jiaxiang Wu , Pengcheng Shen , Shaoxin Li , Shuigeng Zhou

Accurate and efficient dense metric depth estimation is crucial for 3D visual perception in robotics and XR. In this paper, we develop a monocular visual-inertial motion and depth (VIMD) learning framework to estimate dense metric depth by…

Computer Vision and Pattern Recognition · Computer Science 2026-02-11 Saimouli Katragadda , Guoquan Huang

Face detection is to search all the possible regions for faces in images and locate the faces if there are any. Many applications including face recognition, facial expression recognition, face tracking and head-pose estimation assume that…

Computer Vision and Pattern Recognition · Computer Science 2021-12-06 Yuantao Feng , Shiqi Yu , Hanyang Peng , Yan-Ran Li , Jianguo Zhang

Many LiDAR-based methods for detecting large objects, single-class object detection, or under easy situations were claimed to perform quite well. However, their performances of detecting small objects or under hard situations did not…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Chia-Hung Wang , Hsueh-Wei Chen , Li-Chen Fu

Recent success in contrastive learning has sparked growing interest in more effectively leveraging multiple augmented views of data. While prior methods incorporate multiple views at the loss or feature level, they primarily capture…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Jae Hyoung Jeon , Cheolsu Lim , Myungjoo Kang

In contrast to comparing faces via single exemplars, matching sets of face images increases robustness and discrimination performance. Recent image set matching approaches typically measure similarities between subspaces or manifolds, while…

Computer Vision and Pattern Recognition · Computer Science 2013-03-13 Conrad Sanderson , Mehrtash T. Harandi , Yongkang Wong , Brian C. Lovell

Horizontal Federated learning (FL) handles multi-client data that share the same set of features, and vertical FL trains a better predictor that combine all the features from different clients. This paper targets solving vertical FL in an…

Machine Learning · Computer Science 2021-02-02 Tianyi Chen , Xiao Jin , Yuejiao Sun , Wotao Yin

Recognizing the same faces with and without masks is important for ensuring consistent identification in security, access control, and public safety. This capability is crucial in scenarios like law enforcement, healthcare, and…

Various hand-crafted features and metric learning methods prevail in the field of person re-identification. Compared to these methods, this paper proposes a more general way that can learn a similarity metric from image pixels directly. By…

Computer Vision and Pattern Recognition · Computer Science 2014-07-21 Dong Yi , Zhen Lei , Stan Z. Li

Recovering detailed facial geometry from a set of calibrated multi-view images is valuable for its wide range of applications. Traditional multi-view stereo (MVS) methods adopt an optimization-based scheme to regularize the matching cost.…

Computer Vision and Pattern Recognition · Computer Science 2022-05-06 Yunze Xiao , Hao Zhu , Haotian Yang , Zhengyu Diao , Xiangju Lu , Xun Cao

Mixture modelling involves explaining some observed evidence using a combination of probability distributions. The crux of the problem is the inference of an optimal number of mixture components and their corresponding parameters. This…

Machine Learning · Computer Science 2015-03-02 Parthan Kasarapu , Lloyd Allison

In deep learning, it is usually assumed that the optimization process is conducted on a shape-fixed loss surface. Differently, we first propose a novel concept of deformation mapping in this paper to affect the behaviour of the optimizer.…

Machine Learning · Computer Science 2020-09-18 Liangming Chen , Long Jin , Xiujuan Du , Shuai Li , Mei Liu

Key for solving fine-grained image categorization is finding discriminate and local regions that correspond to subtle visual traits. Great strides have been made, with complex networks designed specifically to learn part-level discriminate…

Computer Vision and Pattern Recognition · Computer Science 2021-08-11 Dongliang Chang , Yifeng Ding , Jiyang Xie , Ayan Kumar Bhunia , Xiaoxu Li , Zhanyu Ma , Ming Wu , Jun Guo , Yi-Zhe Song

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

The emergence of vertical federated learning (VFL) has stimulated concerns about the imperfection in privacy protection, as shared feature embeddings may reveal sensitive information under privacy attacks. This paper studies the delicate…

Cryptography and Security · Computer Science 2023-08-07 Yuxi Mi , Hongquan Liu , Yewei Xia , Yiheng Sun , Jihong Guan , Shuigeng Zhou

Generalizability to unseen forgery types is crucial for face forgery detectors. Recent works have made significant progress in terms of generalization by synthetic forgery data augmentation. In this work, we explore another path for…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Jianwei Fei , Yunshu Dai , Huaming Wang , Zhihua Xia

We introduce a learning-based depth map fusion framework that accepts a set of depth and confidence maps generated by a Multi-View Stereo (MVS) algorithm as input and improves them. This is accomplished by integrating volumetric visibility…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Nathaniel Burgdorfer , Philippos Mordohai

How to extract significant point cloud features and estimate the pose between them remains a challenging question, due to the inherent lack of structure and ambiguous order permutation of point clouds. Despite significant improvements in…

Computer Vision and Pattern Recognition · Computer Science 2021-12-14 Zhu Xu , Zhengyao Bai , Huijie Liu , Qianjie Lu , Shenglan Fan