Search Results for author: Yonghao Xu

Found 16 papers, 7 papers with code

Sen2Fire: A Challenging Benchmark Dataset for Wildfire Detection using Sentinel Data

no code implementations26 Mar 2024 Yonghao Xu, Amanda Berg, Leif Haglund

Additionally, our study underscores the positive impact of integrating Sentinel-5 aerosol data for wildfire detection.

There Are No Data Like More Data- Datasets for Deep Learning in Earth Observation

no code implementations30 Oct 2023 Michael Schmitt, Seyed Ali Ahmadi, Yonghao Xu, Gulsen Taskin, Ujjwal Verma, Francescopaolo Sica, Ronny Hansch

We hope to contribute to an understanding that the nature of our data is what distinguishes the Earth observation community from many other communities that apply deep learning techniques to image data, and that a detailed understanding of EO data peculiarities is among the core competencies of our discipline.

Earth Observation

Universal Adversarial Defense in Remote Sensing Based on Pre-trained Denoising Diffusion Models

no code implementations31 Jul 2023 Weikang Yu, Yonghao Xu, Pedram Ghamisi

After that, a universal adversarial purification framework is developed using the forward and reverse process of the pre-trained diffusion models to purify the perturbations from adversarial samples.

Adversarial Defense Denoising +2

Flexible Distribution Alignment: Towards Long-tailed Semi-supervised Learning with Proper Calibration

no code implementations7 Jun 2023 Emanuel Sanchez Aimar, Hannah Helgesen, Yonghao Xu, Marco Kuhlmann, Michael Felsberg

Long-tailed semi-supervised learning (LTSSL) represents a practical scenario for semi-supervised applications, challenged by skewed labeled distributions that bias classifiers.

Data Augmentation

AI Security for Geoscience and Remote Sensing: Challenges and Future Trends

no code implementations19 Dec 2022 Yonghao Xu, Tao Bai, Weikang Yu, Shizhen Chang, Peter M. Atkinson, Pedram Ghamisi

Recent advances in artificial intelligence (AI) have significantly intensified research in the geoscience and remote sensing (RS) field.

Backdoor Attack Denoising +7

Backdoor Attacks for Remote Sensing Data with Wavelet Transform

1 code implementation15 Nov 2022 Nikolaus Dräger, Yonghao Xu, Pedram Ghamisi

Despite its simplicity, the proposed method can significantly cheat the current state-of-the-art deep learning models with a high attack success rate.

Backdoor Attack backdoor defense +3

Txt2Img-MHN: Remote Sensing Image Generation from Text Using Modern Hopfield Networks

1 code implementation8 Aug 2022 Yonghao Xu, Weikang Yu, Pedram Ghamisi, Michael Kopp, Sepp Hochreiter

To better evaluate the realism and semantic consistency of the generated images, we further conduct zero-shot classification on real remote sensing data using the classification model trained on synthesized images.

Text-to-Image Generation Zero-Shot Learning

Landslide4Sense: Reference Benchmark Data and Deep Learning Models for Landslide Detection

no code implementations1 Jun 2022 Omid Ghorbanzadeh, Yonghao Xu, Pedram Ghamisi, Michael Kopp, David Kreil

We make the multi-source landslide benchmark data (Landslide4Sense) and the tested DL models publicly available at \url{https://www. iarai. ac. at/landslide4sense}, establishing an important resource for remote sensing, computer vision, and machine learning communities in studies of image classification in general and applications to landslide detection in particular.

Image Classification

Universal Adversarial Examples in Remote Sensing: Methodology and Benchmark

1 code implementation14 Feb 2022 Yonghao Xu, Pedram Ghamisi

Despite their simplicity, the proposed methods can generate transferable adversarial examples that deceive most of the state-of-the-art deep neural networks in both scene classification and semantic segmentation tasks with high success rates.

Adversarial Attack Scene Classification +1

Consistency-Regularized Region-Growing Network for Semantic Segmentation of Urban Scenes with Point-Level Annotations

1 code implementation8 Feb 2022 Yonghao Xu, Pedram Ghamisi

To this end, we further propose the consistency regularization strategy, where a base classifier and an expanded classifier are employed.

Semantic Segmentation

Self-Ensembling GAN for Cross-Domain Semantic Segmentation

1 code implementation15 Dec 2021 Yonghao Xu, Fengxiang He, Bo Du, DaCheng Tao, Liangpei Zhang

In SE-GAN, a teacher network and a student network constitute a self-ensembling model for generating semantic segmentation maps, which together with a discriminator, forms a GAN.

Generative Adversarial Network Segmentation +1

Unsupervised Domain Adaptation for Semantic Segmentation via Low-level Edge Information Transfer

no code implementations18 Sep 2021 Hongruixuan Chen, Chen Wu, Yonghao Xu, Bo Du

To this end, a semantic-edge domain adaptation architecture is proposed, which uses an independent edge stream to process edge information, thereby generating high-quality semantic boundaries over the target domain.

Ranked #34 on Synthetic-to-Real Translation on GTAV-to-Cityscapes Labels (using extra training data)

Self-Supervised Learning Semantic Segmentation +2

Robust Self-Ensembling Network for Hyperspectral Image Classification

1 code implementation8 Apr 2021 Yonghao Xu, Bo Du, Liangpei Zhang

Since the collection of pixel-level annotations for HSI is laborious and time-consuming, developing algorithms that can yield good performance in the small sample size situation is of great significance.

Classification General Classification +1

Hyperspectral image classification via a random patches network

1 code implementation ISPRS Journal of Photogrammetry and Remote Sensing 2018 Yonghao Xu, Bo Du, Fan Zhang, Liangpei Zhang

Due to the remarkable achievements obtained by deep learning methods in the fields of computer vision, an increasing number of researches have been made to apply these powerful tools into hyperspectral image (HSI) classification.

Classification Few-Shot Image Classification +1

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