Results 71 to 80 of about 1,017 (151)

Machine Learning-Based Wind Direction Retrieval From Quad-Polarized Gaofen-3 SAR Images

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
In this article, an intelligent method for inverting wind direction from quad-polarized Gaofen-3 (GF-3) synthetic aperture radar (SAR) images is proposed.
Weizeng Shao, Yuhang Zhou, Qingjun Zhang, Xingwei Jiang   +3 more
doaj   +1 more source

Ship Detection in Gaofen-3 SAR Images Based on Sea Clutter Distribution Analysis and Deep Convolutional Neural Network

Sensors, 2018
Target detection is one of the important applications in the field of remote sensing. The Gaofen-3 (GF-3) Synthetic Aperture Radar (SAR) satellite launched by China is a powerful tool for maritime monitoring. This work aims at detecting ships in GF-3 SAR
Quanzhi An, Zongxu Pan, Hongjian You
doaj   +1 more source

Multi-feature combined cloud and cloud shadow detection in GaoFen-1 wide field of view imagery

, 2017
The wide field of view (WFV) imaging system onboard the Chinese GaoFen-1 (GF-1) optical satellite has a 16-m resolution and four-day revisit cycle for large-scale Earth observation.
Gamba, Paolo, Li, Huifang, Li, Zhiwei, Shen, Huanfeng, Xia, Guisong, Zhang, Liangpei   +5 more
core   +1 more source

Ship target detection in SAR images based on SimAM attention YOLOv8

IET Communications, Volume 18, Issue 19, Page 1428-1436, December 2024.
1. Mitigated the uniform treatment disparity across all regions of images processed by the YOLOv8 model, and validated the effectiveness of our method through experiments. 2. The combination of a simple, parameter‐free attention module (SimAM) attention mechanism with the YOLOv8 visual model for synthetic aperture radar ship target detection ...
Yuqiao Xu, Wei Du, Lewu Deng, Yi Zhang, Wanli Wen   +4 more
wiley   +1 more source

Identifying Linear Traces of the Han Dynasty Great Wall in Dunhuang Using Gaofen-1 Satellite Remote Sensing Imagery and the Hough Transform [PDF]

, 2019
The Han Dynasty Great Wall (GH), one of the largest and most significant ancient defense projects in the whole of northern China, has been studied increasingly not only because it provides important information about the diplomatic and military ...
Bachagha, N., Liu, C., Luo, L., Shao, J., Shi, P., Wang, X., Yao, Y., Zhu, L.   +7 more
core   +1 more source

MW‐SAM:Mangrove wetland remote sensing image segmentation network based on segment anything model

IET Image Processing, Volume 18, Issue 14, Page 4503-4513, 11 December 2024.
Mangrove wetland remote sensing image segmentation network based on segment anything model is based on the pre‐trained segment anything model and achieves cross‐domain adaptation through parameter‐efficient fine‐tuning techniques. It introduces wetland‐specific prompts, auxiliary branches, semi‐supervised training, and iterative optimization strategies
Yu Zhang, Xin Wang, Jingye Cai, Qun Yang
wiley   +1 more source

Gaofen-3 PolSAR Image Classification via XGBoost and Polarimetric Spatial Information

Sensors, 2018
The launch of the Chinese Gaofen-3 (GF-3) satellite will provide enough synthetic aperture radar (SAR) images with different imaging modes for land cover classification and other potential usages in the next few years.
Hao Dong, Xin Xu, Lei Wang, Fangling Pu
doaj   +1 more source

Remote sensing monitoring and potential distribution analysis of Spartina alterniflora in coastal zone of Guangxi

Ecology and Evolution, Volume 14, Issue 6, June 2024.
In this paper, we employed harmonic regression analysis to fit time series data of vegetation indices based on Landsat 7/8 images and achieved the mapping of Spartina alterniflora in coastal zone of Guangxi from 2009 to 2020 by combining the extracted phenological features with random forest model.
Huanmei Yao, MeiJun Chen, Zengshiqi Huang, Yi Huang, Mengsi Wang, Yin Liu   +5 more
wiley   +1 more source

A Joint Suppression Method of Scalloping and Inter-Scan Banding for SAR Images

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Due to a wide swath at the order of hundreds of kilometres, interscan banding (ISB) may occur in both ScanSAR and TOPS modes of a synthetic aperture radar (SAR), leading to degraded image quality. In this aticle, the causes of ISB are analyzed and an ISB
Xinwei An, Wei Yang, Haijun Shen, Hongcheng Zeng, Fei Zou, Jiadong Deng, Can Su, Wei Liu   +7 more
doaj   +1 more source

Geo-Positioning Accuracy Improvement of Multi-Mode GF-3 Satellite SAR Imagery Based on Error Sources Analysis

Sensors, 2018
The GaoFen-3 (GF-3) satellite is the only synthetic aperture radar (SAR) satellite in the High-Resolution Earth Observation System Project, which is the first C-band full-polarization SAR satellite in China.
Niangang Jiao, Feng Wang, Hongjian You, Xiaolan Qiu, Mudan Yang   +4 more
doaj   +1 more source