O
Osama A. Yousif
Researcher at Royal Institute of Technology
Publications - 12
Citations - 524
Osama A. Yousif is an academic researcher from Royal Institute of Technology. The author has contributed to research in topics: Change detection & Synthetic aperture radar. The author has an hindex of 7, co-authored 12 publications receiving 385 citations.
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Journal ArticleDOI
Multitemporal Spaceborne SAR Data for Urban Change Detection in China
Yifang Ban,Osama A. Yousif +1 more
TL;DR: The findings indicated that the change accuracies obtained using Kittler-Illingworth algorithm vary depending on how the assumed conditional class density function fits the histograms of change and no change classes.
Journal ArticleDOI
Improving Urban Change Detection From Multitemporal SAR Images Using PCA-NLM
Osama A. Yousif,Yifang Ban +1 more
TL;DR: Qualitative and quantitative analyses of the nonlocal means (NLM) denoising algorithm have demonstrated the efficiency of the algorithm in recovering the noise-free change image while preserving the complex structures in urban areas.
Journal ArticleDOI
Improving SAR-Based Urban Change Detection by Combining MAP-MRF Classifier and Nonlocal Means Similarity Weights
Osama A. Yousif,Yifang Ban +1 more
TL;DR: The iterated conditional modes (ICM) framework for the optimization of the maximum a posteriori (MAP-MRF) criterion function is extended to include a nonlocal probability maximization step, which has the potential to preserve spatial details and to reduce speckle effects.
Journal ArticleDOI
Dimensionality Reduction and Feature Selection for Object-Based Land Cover Classification based on Sentinel-1 and Sentinel-2 Time Series Using Google Earth Engine
TL;DR: A methodology to extract the most relevant features and optimize an SVM classifier hyperparameters to achieve higher classification accuracy is proposed and demonstrated the viability of the methodology in a cloud-computing environment to incorporate dimensionality reduction as a key step in the land cover classification process.
Book ChapterDOI
Change Detection Techniques: A Review
Yifang Ban,Osama A. Yousif +1 more
TL;DR: In this article, a review of change detection techniques using multitemporal remotely sensed images is presented, which includes data preprocessing, change image generation and change detection algorithms such as unsupervised and supervised change detection as well as pixel-based and object-based change detection.