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Person re-identification (ReID) is an important task in computer vision. Recently, deep learning with a metric learning loss has become a common framework for ReID. In this paper, we also propose a new metric learning loss with hard sample…

Computer Vision and Pattern Recognition · Computer Science 2017-10-10 Qiqi Xiao , Hao Luo , Chi Zhang

Metric learning seeks perceptual embeddings where visually similar instances are close and dissimilar instances are apart, but learned representations can be sub-optimal when the distribution of intra-class samples is diverse and distinct…

Machine Learning · Computer Science 2021-08-30 Elad Levi , Tete Xiao , Xiaolong Wang , Trevor Darrell

Recently, contrastive learning attracts increasing interests in neural text generation as a new solution to alleviate the exposure bias problem. It introduces a sequence-level training signal which is crucial to generation tasks that always…

Computation and Language · Computer Science 2023-02-06 Chenxin An , Jiangtao Feng , Kai Lv , Lingpeng Kong , Xipeng Qiu , Xuanjing Huang

Person re-identification (ReID) aims to match people across multiple non-overlapping video cameras deployed at different locations. To address this challenging problem, many metric learning approaches have been proposed, among which triplet…

Computer Vision and Pattern Recognition · Computer Science 2018-12-18 Yingying Zhang , Qiaoyong Zhong , Liang Ma , Di Xie , Shiliang Pu

Multi-target tracking (MTT) is a classical signal processing task, where the goal is to estimate the states of an unknown number of moving targets from noisy sensor measurements. In this paper, we revisit MTT from a deep learning…

Signal Processing · Electrical Eng. & Systems 2024-05-15 Damian Owerko , Charilaos I. Kanatsoulis , Jennifer Bondarchuk , Donald J. Bucci , Alejandro Ribeiro

Benefiting from its ability to efficiently learn how an object is changing, correlation filters have recently demonstrated excellent performance for rapidly tracking objects. Designing effective features and handling model drifts are two…

Computer Vision and Pattern Recognition · Computer Science 2020-11-26 Xizhe Xue , Ying Li , Qiang Shen

In this paper, we address the problem of 3D object instance recognition and pose estimation of localized objects in cluttered environments using convolutional neural networks. Inspired by the descriptor learning approach of Wohlhart et al.,…

Computer Vision and Pattern Recognition · Computer Science 2019-04-11 Sergey Zakharov , Wadim Kehl , Benjamin Planche , Andreas Hutter , Slobodan Ilic

Similarity metric is crucial for massive MIMO positioning utilizing channel state information~(CSI). In this letter, we propose a novel massive MIMO CSI similarity learning method via deep convolutional neural network~(DCNN) and contrastive…

Information Theory · Computer Science 2022-06-07 Junquan Deng , Wei Shi , Jianzhao Zhang , Xianyu Zhang , Chuan Zhang

Oriented object detection for multi-spectral imagery faces significant challenges due to differences both within and between modalities. Although existing methods have improved detection accuracy through complex network architectures, their…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Leiyu Wang , Biao Jin , Feng Huang , Liqiong Chen , Zhengyong Wang , Xiaohai He , Honggang Chen

Deep metric learning objectives (e.g., triplet loss) require storing and comparing high-dimensional embeddings, making the per-batch loss buffer scale as $O(S\cdot D)$, where $S$ is the number of samples in a batch and $D$ is the feature…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Alif Elham Khan , Mohammad Junayed Hasan , Humayra Anjum , Nabeel Mohammed

Training a modern deep neural network on massive labeled samples is the main paradigm in solving the scene classification problem for remote sensing, but learning from only a few data points remains a challenge. Existing methods for…

Computer Vision and Pattern Recognition · Computer Science 2020-09-29 Haifeng Li , Zhenqi Cui , Zhiqing Zhu , Li Chen , Jiawei Zhu , Haozhe Huang , Chao Tao

Face recognition has witnessed significant progress due to the advances of deep convolutional neural networks (CNNs), the central task of which is how to improve the feature discrimination. To this end, several margin-based (\textit{e.g.},…

Computer Vision and Pattern Recognition · Computer Science 2019-12-03 Xiaobo Wang , Shifeng Zhang , Shuo Wang , Tianyu Fu , Hailin Shi , Tao Mei

Metric learning aims to learn a distance metric such that semantically similar instances are pulled together while dissimilar instances are pushed away. Many existing methods consider maximizing or at least constraining a distance margin in…

Machine Learning · Statistics 2022-08-17 Xiaochen Yang , Yiwen Guo , Mingzhi Dong , Jing-Hao Xue

Deep representation learning using triplet network for classification suffers from a lack of theoretical foundation and difficulty in tuning both the network and classifiers for performance. To address the problem, local-margin triplet loss…

Computer Vision and Pattern Recognition · Computer Science 2019-11-20 Phawis Thammasorn , Daniel Hippe , Wanpracha Chaovalitwongse , Matthew Spraker , Landon Wootton , Matthew Nyflot , Stephanie Combs , Jan Peeken , Eric Ford

The Information Contrastive (I-Con) framework revealed that over 23 representation learning methods implicitly minimize KL divergence between data and learned distributions that encode similarities between data points. However, a KL-based…

Machine Learning · Computer Science 2025-12-05 Jasmine Shone , Zhening Li , Shaden Alshammari , Mark Hamilton , William Freeman

Deep-learning architectures for classification problems involve the cross-entropy loss sometimes assisted with auxiliary loss functions like center loss, contrastive loss and triplet loss. These auxiliary loss functions facilitate better…

Computer Vision and Pattern Recognition · Computer Science 2020-04-22 Hongjun Choi , Anirudh Som , Pavan Turaga

Person recognition aims at recognizing the same identity across time and space with complicated scenes and similar appearance. In this paper, we propose a novel method to address this task by training a network to obtain robust and…

Computer Vision and Pattern Recognition · Computer Science 2017-04-03 Yu Liu , Hongyang Li , Xiaogang Wang

Region-based Convolutional Neural Networks (R-CNNs) have achieved great success in the field of object detection. The existing R-CNNs usually divide a Region-of-Interest (ROI) into grids, and then localize objects by utilizing the spatial…

Computer Vision and Pattern Recognition · Computer Science 2018-02-13 Xiaochuan Fan , Hao Guo , Kang Zheng , Wei Feng , Song Wang

This paper extends the popular task of multi-object tracking to multi-object tracking and segmentation (MOTS). Towards this goal, we create dense pixel-level annotations for two existing tracking datasets using a semi-automatic annotation…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Paul Voigtlaender , Michael Krause , Aljosa Osep , Jonathon Luiten , Berin Balachandar Gnana Sekar , Andreas Geiger , Bastian Leibe

This paper pays close attention to the cross-modality visible-infrared person re-identification (VI Re-ID) task, which aims to match pedestrian samples between visible and infrared modes. In order to reduce the modality-discrepancy between…

Computer Vision and Pattern Recognition · Computer Science 2022-02-10 Guangwei Gao , Hao Shao , Fei Wu , Meng Yang , Yi Yu