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Unsupervised domain adaptation (UDA) methods can dramatically improve generalization on unlabeled target domains. However, optimal hyper-parameter selection is critical to achieving high accuracy and avoiding negative transfer. Supervised…

Computer Vision and Pattern Recognition · Computer Science 2021-08-25 Kuniaki Saito , Donghyun Kim , Piotr Teterwak , Stan Sclaroff , Trevor Darrell , Kate Saenko

The perception of transparent objects is one of the well-known challenges in computer vision. Conventional depth sensors have difficulty in sensing the depth of transparent objects due to refraction and reflection of light. Previous…

Computer Vision and Pattern Recognition · Computer Science 2025-12-05 Xianghui Fan , Zhaoyu Chen , Mengyang Pan , Anping Deng , Hang Yang

We propose a novel unsupervised object localization method that allows us to explain the predictions of the model by utilizing self-supervised pre-trained models without additional finetuning. Existing unsupervised and self-supervised…

Computer Vision and Pattern Recognition · Computer Science 2023-09-11 Yeonghwan Song , Seokwoo Jang , Dina Katabi , Jeany Son

Traditional feature-based image stitching technologies rely heavily on feature detection quality, often failing to stitch images with few features or low resolution. The learning-based image stitching solutions are rarely studied due to the…

Computer Vision and Pattern Recognition · Computer Science 2021-07-07 Lang Nie , Chunyu Lin , Kang Liao , Shuaicheng Liu , Yao Zhao

Object detectors trained on large-scale RGB datasets are being extensively employed in real-world applications. However, these RGB-trained models suffer a performance drop under adverse illumination and lighting conditions. Infrared (IR)…

Computer Vision and Pattern Recognition · Computer Science 2021-10-08 Vibashan VS , Domenick Poster , Suya You , Shuowen Hu , Vishal M. Patel

Unsupervised person re-identification (ReID) is a challenging task without data annotation to guide discriminative learning. Existing methods attempt to solve this problem by clustering extracted embeddings to generate pseudo labels.…

Computer Vision and Pattern Recognition · Computer Science 2022-08-30 Xue Li , Tengfei Liang , Yi Jin , Tao Wang , Yidong Li

Unsupervised visible-infrared person re-identification (UVI-ReID) has recently gained great attention due to its potential for enhancing human detection in diverse environments without labeling. Previous methods utilize intra-modality…

Computer Vision and Pattern Recognition · Computer Science 2024-04-11 Yexin Liu , Weiming Zhang , Athanasios V. Vasilakos , Lin Wang

Unsupervised depth learning takes the appearance difference between a target view and a view synthesized from its adjacent frame as supervisory signal. Since the supervisory signal only comes from images themselves, the resolution of…

Computer Vision and Pattern Recognition · Computer Science 2019-10-22 Junsheng Zhou , Yuwang Wang , Kaihuai Qin , Wenjun Zeng

Self-supervision can dramatically cut back the amount of manually-labelled data required to train deep neural networks. While self-supervision has usually been considered for tasks such as image classification, in this paper we aim at…

Computer Vision and Pattern Recognition · Computer Science 2018-04-06 David Novotny , Samuel Albanie , Diane Larlus , Andrea Vedaldi

Deep learning demands a huge amount of well-labeled data to train the network parameters. How to use the least amount of labeled data to obtain the desired classification accuracy is of great practical significance, because for many…

Machine Learning · Computer Science 2019-12-20 Xiao Han , Zihao Wang , Enmei Tu , Gunnam Suryanarayana , Jie Yang

Training image-based object detectors presents formidable challenges, as it entails not only the complexities of object detection but also the added intricacies of precisely localizing objects within potentially diverse and noisy…

Computer Vision and Pattern Recognition · Computer Science 2024-02-22 Chandan Kumar , Jansel Herrera-Gerena , John Just , Matthew Darr , Ali Jannesari

Pre-training general-purpose visual features with convolutional neural networks without relying on annotations is a challenging and important task. Most recent efforts in unsupervised feature learning have focused on either small or highly…

Computer Vision and Pattern Recognition · Computer Science 2019-08-14 Mathilde Caron , Piotr Bojanowski , Julien Mairal , Armand Joulin

In this paper, we present a technique for unsupervised learning of visual representations. Specifically, we train a model for foreground and background classification task, in the process of which it learns visual representations.…

Computer Vision and Pattern Recognition · Computer Science 2018-06-04 Aditya Vora

Unsupervised person re-identification is a challenging and promising task in computer vision. Nowadays unsupervised person re-identification methods have achieved great progress by training with pseudo labels. However, how to purify feature…

Computer Vision and Pattern Recognition · Computer Science 2023-06-28 Long Lan , Xiao Teng , Jing Zhang , Xiang Zhang , Dacheng Tao

Multi-Object Tracking (MOT) is the task that has a lot of potential for development, and there are still many problems to be solved. In the traditional tracking by detection paradigm, There has been a lot of work on feature based object…

Computer Vision and Pattern Recognition · Computer Science 2020-10-27 Tae-young Chung , Heansung Lee , Myeong Ah Cho , Suhwan Cho , Sangyoun Lee

Unsupervised learning has always been appealing to machine learning researchers and practitioners, allowing them to avoid an expensive and complicated process of labeling the data. However, unsupervised learning of complex data is…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Evgenii Zheltonozhskii , Chaim Baskin , Alex M. Bronstein , Avi Mendelson

Unsupervised anomaly detection from high dimensional data like mobility networks is a challenging task. Study of different approaches of feature engineering from such high dimensional data have been a focus of research in this field. This…

Machine Learning · Computer Science 2019-12-09 Urwa Muaz , Stanislav Sobolevsky

Unsupervised domain adaptation (UDA) is the task of modifying a statistical model trained on labeled data from a source domain to achieve better performance on data from a target domain, with access to only unlabeled data in the target…

Computation and Language · Computer Science 2023-04-06 Timothy A Miller

Deep learning has raised hopes and expectations as a general solution for many applications; indeed it has proven effective, but it also showed a strong dependence on large quantities of data. Luckily, it has been shown that, even when data…

Computer Vision and Pattern Recognition · Computer Science 2019-02-14 Fabio Maria Carlucci

Unsupervised near-duplicate detection has many practical applications ranging from social media analysis and web-scale retrieval, to digital image forensics. It entails running a threshold-limited query on a set of descriptors extracted…

Computer Vision and Pattern Recognition · Computer Science 2019-10-29 Lia Morra , Fabrizio Lamberti