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Unsupervised domain adaptation (UDA) aims at adapting the model trained on a labeled source-domain dataset to an unlabeled target-domain dataset. The task of UDA on open-set person re-identification (re-ID) is even more challenging as the…

Computer Vision and Pattern Recognition · Computer Science 2022-05-06 Yixiao Ge , Feng Zhu , Dapeng Chen , Rui Zhao , Xiaogang Wang , Hongsheng Li

With the development of multimedia time, one sample can always be described from multiple views which contain compatible and complementary information. Most algorithms cannot take information from multiple views into considerations and fail…

Computer Vision and Pattern Recognition · Computer Science 2019-03-20 Huibing Wang , Jinjia Peng , Xianping Fu

Though quite challenging, leveraging large-scale unlabeled or partially labeled images in a cost-effective way has increasingly attracted interests for its great importance to computer vision. To tackle this problem, many Active Learning…

Computer Vision and Pattern Recognition · Computer Science 2018-05-25 Keze Wang , Xiaopeng Yan , Dongyu Zhang , Lei Zhang , Liang Lin

We present a framework for learning single-view shape and pose prediction without using direct supervision for either. Our approach allows leveraging multi-view observations from unknown poses as supervisory signal during training. Our…

Computer Vision and Pattern Recognition · Computer Science 2018-04-25 Shubham Tulsiani , Alexei A. Efros , Jitendra Malik

Comparing two images in terms of Commonalities and Differences (CaD) is a fundamental human capability that forms the basis of advanced visual reasoning and interpretation. It is essential for the generation of detailed and contextually…

Computer Vision and Pattern Recognition · Computer Science 2024-06-14 Wei Lin , Muhammad Jehanzeb Mirza , Sivan Doveh , Rogerio Feris , Raja Giryes , Sepp Hochreiter , Leonid Karlinsky

Intra-camera supervision (ICS) for person re-identification (Re-ID) assumes that identity labels are independently annotated within each camera view and no inter-camera identity association is labeled. It is a new setting proposed recently…

Computer Vision and Pattern Recognition · Computer Science 2020-12-14 Menglin Wang , Baisheng Lai , Haokun Chen , Jianqiang Huang , Xiaojin Gong , Xian-Sheng Hua

Person re-identification (Re-ID) has been a significant research topic in the past decade due to its real-world applications and research significance. While supervised person Re-ID methods achieve superior performance over unsupervised…

Computer Vision and Pattern Recognition · Computer Science 2021-10-05 Xiangtan Lin , Pengzhen Ren , Chung-Hsing Yeh , Lina Yao , Andy Song , Xiaojun Chang

Person Re-identification (re-id) aims to match people across non-overlapping camera views in a public space. It is a challenging problem because many people captured in surveillance videos wear similar clothes. Consequently, the differences…

Computer Vision and Pattern Recognition · Computer Science 2017-09-18 Xuelin Qian , Yanwei Fu , Yu-Gang Jiang , Tao Xiang , Xiangyang Xue

Supervised approaches to 3D pose estimation from single images are remarkably effective when labeled data is abundant. However, as the acquisition of ground-truth 3D labels is labor intensive and time consuming, recent attention has shifted…

Computer Vision and Pattern Recognition · Computer Science 2022-06-30 Soumava Kumar Roy , Leonardo Citraro , Sina Honari , Pascal Fua

We address the problem of learning self-supervised representations from unlabeled image collections. Unlike existing approaches that attempt to learn useful features by maximizing similarity between augmented versions of each input image or…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Omiros Pantazis , Gabriel Brostow , Kate Jones , Oisin Mac Aodha

Drastic variations in illumination across surveillance cameras make the person re-identification problem extremely challenging. Current large scale re-identification datasets have a significant number of training subjects, but lack…

Computer Vision and Pattern Recognition · Computer Science 2018-04-27 Slawomir Bak , Peter Carr , Jean-Francois Lalonde

Person re-identification (person Re-Id) aims to retrieve the pedestrian images of a same person that captured by disjoint and non-overlapping cameras. Lots of researchers recently focuse on this hot issue and propose deep learning based…

Computer Vision and Pattern Recognition · Computer Science 2019-06-06 Chengyuan Zhang , Lei Zhu , Shichao Zhang

Semi-supervised learning techniques are gaining popularity due to their capability of building models that are effective, even when scarce amounts of labeled data are available. In this paper, we present a framework and specific tasks for…

Image and Video Processing · Electrical Eng. & Systems 2022-10-05 Antonio Montanaro , Diego Valsesia , Giulia Fracastoro , Enrico Magli

Human-centric visual tasks have attracted increasing research attention due to their widespread applications. In this paper, we aim to learn a general human representation from massive unlabeled human images which can benefit downstream…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Weihua Chen , Xianzhe Xu , Jian Jia , Hao luo , Yaohua Wang , Fan Wang , Rong Jin , Xiuyu Sun

3D object trackers usually require training on large amounts of annotated data that is expensive and time-consuming to collect. Instead, we propose leveraging vast unlabeled datasets by self-supervised metric learning of 3D object trackers,…

Computer Vision and Pattern Recognition · Computer Science 2020-08-20 Jianren Wang , Siddharth Ancha , Yi-Ting Chen , David Held

While the widely available embedded sensors in smartphones and other wearable devices make it easier to obtain data of human activities, recognizing different types of human activities from sensor-based data remains a difficult research…

Signal Processing · Electrical Eng. & Systems 2024-08-15 Taoran Sheng , Manfred Huber

Recovering the 3D structure of an object from a single image is a challenging task due to its ill-posed nature. One approach is to utilize the plentiful photos of the same object category to learn a strong 3D shape prior for the object.…

Computer Vision and Pattern Recognition · Computer Science 2021-09-08 Long-Nhat Ho , Anh Tuan Tran , Quynh Phung , Minh Hoai

We present a learning based approach for multi-view stereopsis (MVS). While current deep MVS methods achieve impressive results, they crucially rely on ground-truth 3D training data, and acquisition of such precise 3D geometry for…

Computer Vision and Pattern Recognition · Computer Science 2019-06-07 Tejas Khot , Shubham Agrawal , Shubham Tulsiani , Christoph Mertz , Simon Lucey , Martial Hebert

Current state-of-the-art classification and detection algorithms rely on supervised training. In this work we study unsupervised feature learning in the context of temporally coherent video data. We focus on feature learning from unlabeled…

Computer Vision and Pattern Recognition · Computer Science 2015-04-17 Ross Goroshin , Joan Bruna , Jonathan Tompson , David Eigen , Yann LeCun

We propose a novel method for spatiotemporal multi-camera calibration using freely moving people in multiview videos. Since calibrating multiple cameras and finding matches across their views are inherently interdependent, performing both…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Sang-Eun Lee , Ko Nishino , Shohei Nobuhara