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Unsupervised person re-identification (re-ID) aims at closing the performance gap to supervised methods. These methods build reliable relationship between data points while learning representations. However, we empirically show that the…

计算机视觉与模式识别 · 计算机科学 2021-03-22 Xuanyu He , Wei Zhang , Ran Song , Qian Zhang , Xiangyuan Lan , Lin Ma

In this paper, we aim to tackle the one-shot person re-identification problem where only one image is labelled for each person, while other images are unlabelled. This task is challenging due to the lack of sufficient labelled training…

计算机视觉与模式识别 · 计算机科学 2022-01-21 Hui Li , Jimin Xiao , Mingjie Sun , Eng Gee Lim , Yao Zhao

Transformer-based supervised pre-training achieves great performance in person re-identification (ReID). However, due to the domain gap between ImageNet and ReID datasets, it usually needs a larger pre-training dataset (e.g. ImageNet-21K)…

计算机视觉与模式识别 · 计算机科学 2021-11-24 Hao Luo , Pichao Wang , Yi Xu , Feng Ding , Yanxin Zhou , Fan Wang , Hao Li , Rong Jin

Vehicle re-identification is a challenging task due to high intra-class variances and small inter-class variances. In this work, we focus on the failure cases caused by similar background and shape. They pose serve bias on similarity,…

计算机视觉与模式识别 · 计算机科学 2020-05-18 Xiangyu Zhu , Zhenbo Luo , Pei Fu , Xiang Ji

Recent self-training techniques have shown notable improvements in unsupervised domain adaptation for 3D object detection (3D UDA). These techniques typically select pseudo labels, i.e., 3D boxes, to supervise models for the target domain.…

计算机视觉与模式识别 · 计算机科学 2024-05-01 Zhanwei Zhang , Minghao Chen , Shuai Xiao , Liang Peng , Hengjia Li , Binbin Lin , Ping Li , Wenxiao Wang , Boxi Wu , Deng Cai

Unsupervised person re-identification (ReID) aims at learning discriminative identity features for person retrieval without any annotations. Recent advances accomplish this task by leveraging clustering-based pseudo labels, but these pseudo…

计算机视觉与模式识别 · 计算机科学 2022-12-01 De Cheng , Haichun Tai , Nannan Wang , Zhen Wang , Xinbo Gao

Unsupervised domain adaptation aims to address the problem of classifying unlabeled samples from the target domain whilst labeled samples are only available from the source domain and the data distributions are different in these two…

机器学习 · 计算机科学 2019-11-20 Qian Wang , Toby P. Breckon

Annotation-efficient segmentation of the numerous mitochondria instances from various electron microscopy (EM) images is highly valuable for biological and neuroscience research. Although unsupervised domain adaptation (UDA) methods can…

计算机视觉与模式识别 · 计算机科学 2026-05-04 Shan Xiong , Jiabao Chen , Ye Wang , Jialin Peng

Addressing performance degradation in 3D LiDAR semantic segmentation due to domain shifts (e.g., sensor type, geographical location) is crucial for autonomous systems, yet manual annotation of target data is prohibitive. This study…

计算机视觉与模式识别 · 计算机科学 2025-07-25 Abhishek Kaushik , Norbert Haala , Uwe Soergel

Self-supervised learning systems have gained significant attention in recent years by leveraging clustering-based pseudo-labels to provide supervision without the need for human annotations. However, the noise in these pseudo-labels caused…

计算机视觉与模式识别 · 计算机科学 2024-10-21 Zia-ur-Rehman , Arif Mahmood , Wenxiong Kang

Most of the proposed person re-identification algorithms conduct supervised training and testing on single labeled datasets with small size, so directly deploying these trained models to a large-scale real-world camera network may lead to…

计算机视觉与模式识别 · 计算机科学 2018-03-21 Jianming Lv , Weihang Chen , Qing Li , Can Yang

We present a novel method, SALAD, for the challenging vision task of adapting a pre-trained "source" domain network to a "target" domain, with a small budget for annotation in the "target" domain and a shift in the label space. Further, the…

计算机视觉与模式识别 · 计算机科学 2025-02-13 Divya Kothandaraman , Sumit Shekhar , Abhilasha Sancheti , Manoj Ghuhan , Tripti Shukla , Dinesh Manocha

Vehicle Re-identification (Re-ID) has been broadly studied in the last decade; however, the different camera view angle leading to confused discrimination in the feature subspace for the vehicles of various poses, is still challenging for…

计算机视觉与模式识别 · 计算机科学 2024-04-18 Baolu Li , Ping Liu , Lan Fu , Jinlong Li , Jianwu Fang , Zhigang Xu , Hongkai Yu

The performance of state-of-the-art object detectors degrades significantly under adverse weather, causing a safety-critical domain shift problem for autonomous vehicles. Recent efforts address this problem by relying on synthetic data to…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Hamed Khatounabadi , Xiaohu Lu , Hayder Radha

Accurate lane detection, a crucial enabler for autonomous driving, currently relies on obtaining a large and diverse labeled training dataset. In this work, we explore learning from abundant, randomly generated synthetic data, together with…

计算机视觉与模式识别 · 计算机科学 2020-11-10 Noa Garnett , Roy Uziel , Netalee Efrat , Dan Levi

Semi-supervised learning for LiDAR semantic segmentation often suffers from error propagation and confirmation bias caused by noisy pseudo-labels. To tackle this chronic issue, we introduce RePL, a novel framework that enhances pseudo-label…

计算机视觉与模式识别 · 计算机科学 2026-04-09 Donghyeon Kwon , Taegyu Park , Suha Kwak

Unsupervised domain adaptation (DA) with the aid of pseudo labeling techniques has emerged as a crucial approach for domain-adaptive 3D object detection. While effective, existing DA methods suffer from a substantial drop in performance…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Zhuoxiao Chen , Yadan Luo , Zheng Wang , Mahsa Baktashmotlagh , Zi Huang

Regular unsupervised domain adaptive person re-identification (ReID) focuses on adapting a model from a source domain to a fixed target domain. However, an adapted ReID model can hardly retain previously-acquired knowledge and generalize to…

计算机视觉与模式识别 · 计算机科学 2025-04-14 Hao Chen , Francois Bremond , Nicu Sebe , Shiliang Zhang

Unsupervised person re-identification (re-ID) aims at learning discriminative representations for person retrieval from unlabeled data. Recent techniques accomplish this task by using pseudo-labels, but these labels are inherently noisy and…

计算机视觉与模式识别 · 计算机科学 2022-03-29 Yoonki Cho , Woo Jae Kim , Seunghoon Hong , Sung-Eui Yoon

Recent works on unsupervised domain adaptation (UDA) focus on the selection of good pseudo-labels as surrogates for the missing labels in the target data. However, source domain bias that deteriorates the pseudo-labels can still exist since…

计算机视觉与模式识别 · 计算机科学 2022-05-31 Can Zhang , Gim Hee Lee