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Domain adaptive object detection (DAOD) aims to adapt the detector from a labelled source domain to an unlabelled target domain. In recent years, DAOD has attracted massive attention since it can alleviate performance degradation due to the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-08 Siqi Zhang , Lu Zhang , Zhiyong Liu , Hangtao Feng

Fine-tuning pre-trained neural network models has become a widely adopted approach across various domains. However, it can lead to the distortion of pre-trained feature extractors that already possess strong generalization capabilities.…

Machine Learning · Computer Science 2024-03-27 Seokhyeon Ha , Sunbeom Jung , Jungwoo Lee

Continuous appearance shifts such as changes in weather and lighting conditions can impact the performance of deployed machine learning models. While unsupervised domain adaptation aims to address this challenge, current approaches do not…

Machine Learning · Statistics 2018-02-27 Markus Wulfmeier , Alex Bewley , Ingmar Posner

Recent works on domain adaptation reveal the effectiveness of adversarial learning on filling the discrepancy between source and target domains. However, two common limitations exist in current adversarial-learning-based methods. First,…

Computer Vision and Pattern Recognition · Computer Science 2019-12-05 Minghao Xu , Jian Zhang , Bingbing Ni , Teng Li , Chengjie Wang , Qi Tian , Wenjun Zhang

Recently, several methods based on generative adversarial network (GAN) have been proposed for the task of aligning cross-domain images or learning a joint distribution of cross-domain images. One of the methods is to use conditional GAN…

Computer Vision and Pattern Recognition · Computer Science 2017-07-06 Xudong Mao , Qing Li , Haoran Xie

The insertion of deep learning in medical image analysis had lead to the development of state-of-the art strategies in several applications such a disease classification, as well as abnormality detection and segmentation. However, even the…

Image and Video Processing · Electrical Eng. & Systems 2022-02-24 Mauricio Orbes-Arteaga , Thomas Varsavsky , Lauge Sorensen , Mads Nielsen , Akshay Pai , Sebastien Ourselin , Marc Modat , M Jorge Cardoso

Existing deep learning methods for action recognition in videos require a large number of labeled videos for training, which is labor-intensive and time-consuming. For the same action, the knowledge learned from different media types, e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2020-02-19 Yang Liu , Zhaoyang Lu , Jing Li , Tao Yang , Chao Yao

This work provides a framework for addressing the problem of supervised domain adaptation with deep models. The main idea is to exploit adversarial learning to learn an embedded subspace that simultaneously maximizes the confusion between…

Computer Vision and Pattern Recognition · Computer Science 2017-11-08 Saeid Motiian , Quinn Jones , Seyed Mehdi Iranmanesh , Gianfranco Doretto

Fine-grained object classification is a challenging task due to the subtle inter-class difference and large intra-class variation. Recently, visual attention models have been applied to automatically localize the discriminative regions of…

Computer Vision and Pattern Recognition · Computer Science 2018-02-27 Bo Zhao , Xiao Wu , Jiashi Feng , Qiang Peng , Shuicheng Yan

In this work, we aim to learn an unpaired image enhancement model, which can enrich low-quality images with the characteristics of high-quality images provided by users. We propose a quality attention generative adversarial network (QAGAN)…

Image and Video Processing · Electrical Eng. & Systems 2021-01-01 Zhangkai Ni , Wenhan Yang , Shiqi Wang , Lin Ma , Sam Kwong

Deep learning-based diagnostic models often suffer performance drops due to distribution shifts between training (source) and test (target) domains. Collecting and labeling sufficient target domain data for model retraining represents an…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Yaofei Duan , Yuhao Huang , Xin Yang , Luyi Han , Xinyu Xie , Zhiyuan Zhu , Ping He , Ka-Hou Chan , Ligang Cui , Sio-Kei Im , Dong Ni , Tao Tan

Anomaly detection is a fundamental problem in computer vision area with many real-world applications. Given a wide range of images belonging to the normal class, emerging from some distribution, the objective of this task is to construct…

Computer Vision and Pattern Recognition · Computer Science 2020-07-15 Chengwei Chen , Pan Chen , Haichuan Song , Yiqing Tao , Yuan Xie , Shouhong Ding , Lizhuang Ma

We propose an approach for unsupervised adaptation of object detectors from label-rich to label-poor domains which can significantly reduce annotation costs associated with detection. Recently, approaches that align distributions of source…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Kuniaki Saito , Yoshitaka Ushiku , Tatsuya Harada , Kate Saenko

We consider the problem of adapting a network trained on three-channel color images to a hyperspectral domain with a large number of channels. To this end, we propose domain adaptor networks that map the input to be compatible with a…

Computer Vision and Pattern Recognition · Computer Science 2021-08-04 Gustavo Perez , Subhransu Maji

Most existing studies on unsupervised domain adaptation (UDA) assume that each domain's training samples come with domain labels (e.g., painting, photo). Samples from each domain are assumed to follow the same distribution and the domain…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Zhongying Deng , Kaiyang Zhou , Da Li , Junjun He , Yi-Zhe Song , Tao Xiang

This paper proposes a Rotation-equivariant Attention Feature Fusion Pyramid Networks for Aerial Object Detection named ReAFFPN. ReAFFPN aims at improving the effect of rotation-equivariant features fusion between adjacent layers which…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Chongyu Sun , Yang Xu , Zebin Wu , Zhihui Wei

Object detection algorithms allow to enable many interesting applications which can be implemented in different devices, such as smartphones and wearable devices. In the context of a cultural site, implementing these algorithms in a…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Giovanni Pasqualino , Antonino Furnari , Giovanni Maria Farinella

Deep learning models such as convolutional neural networks and transformers have been widely applied to solve 3D object detection problems in the domain of autonomous driving. While existing models have achieved outstanding performance on…

Computer Vision and Pattern Recognition · Computer Science 2024-08-26 Ruixiao Zhang , Juheon Lee , Xiaohao Cai , Adam Prugel-Bennett

Domain adaptation for object detection (DAOD) has recently drawn much attention owing to its capability of detecting target objects without any annotations. To tackle the problem, previous works focus on aligning features extracted from…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Mirae Do , Seogkyu Jeon , Pilhyeon Lee , Kibeom Hong , Yu-seung Ma , Hyeran Byun

Domain adaptive object detection (DAOD) aims to generalize an object detector trained on labeled source-domain data to a target domain without annotations, the core principle of which is \emph{source-target feature alignment}. Typically,…

Computer Vision and Pattern Recognition · Computer Science 2024-12-18 Xinyu He , Xinhui Li , Xiaojie Guo