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Topic Review
Applications of Multispectral Light Detection and Ranging Technology
Light Detection and Ranging (LiDAR) is a well-established active technology for the direct acquisition of 3D data. In recent years, the geometric information collected by LiDAR sensors has been widely combined with optical images to provide supplementary spectral information to achieve more precise results in diverse remote sensing applications. The emergence of active Multispectral LiDAR (MSL) systems, which operate on different wavelengths, has recently been revolutionizing the simultaneous acquisition of height and intensity information.
  • 134
  • 18 Apr 2024
Topic Review
SAR RFI Suppression Method Based on FuSINet
Synthetic Aperture Radar (SAR) is a high-resolution imaging sensor commonly mounted on platforms such as airplanes and satellites for widespread use. In complex electromagnetic environments, radio frequency interference (RFI) severely degrades the quality of SAR images due to its widely varying bandwidth and numerous unknown emission sources. Although traditional deep learning-based methods have achieved remarkable results by directly processing SAR images as visual ones, there is still considerable room for improvement in their performance due to the wide coverage and high intensity of RFI.
  • 112
  • 01 Apr 2024
Topic Review
A Lightweight Remote Sensing Aircraft Object Detection Network
Remote sensing aircraft object detection is crucial in various applications. In civil aviation and the aerospace industry, it helps identify other aircraft, drones, or obstacles around an aircraft to prevent collisions and enhance aviation safety. It also aids in the real-time monitoring and tracking of civil aviation flights, cargo planes, and private aircrafts to ensure their flight path and status.
  • 106
  • 13 Mar 2024
Topic Review
Drone Photogrammetry for Underwater Cutural Heritage Documentation
Underwater cultural heritage (UCH) is an irreplaceable resource with intrinsic value that requires preservation, documentation, and safeguarding. Documentation is fundamental to increasing UCH resilience, providing a basis for monitoring, conservation, and management. Advanced UCH documentation and virtualization technologies are increasingly important for dissemination and visualization purposes, domain expert study, replica reproduction, degradation monitoring, and all other outcomes after a metric survey of cultural heritage (CH). Among the different metric documentation techniques, underwater photogrammetry is the most widely used for UCH documentation. It is a non-destructive and relatively inexpensive method that can produce high-resolution 3D models and 2D orthomosaics of underwater sites and artifacts. However, underwater photogrammetry is challenged by the different optical properties of water, light penetration, visibility and suspension, radiometric issues, and environmental drawbacks that make underwater documentation difficult. 
  • 104
  • 11 Mar 2024
Topic Review
Estimate Soil Organic Carbon from Remote Sensing
Monitoring soil organic carbon (SOC) typically assumes conducting a labor-intensive soil sampling campaign, followed by laboratory testing, which is both expensive and impractical for generating useful, spatially continuous data products. 
  • 156
  • 27 Feb 2024
Topic Review
The Existing Remote Sensing Index Resources
Remote sensing indices are widely used in various fields of geoscience research. However, there are limits to how effectively the knowledge of indices can be managed or analyzed. One of the main problems is the lack of ontology models and research on indices, which makes it difficult to acquire and update knowledge in this area. 
  • 76
  • 18 Feb 2024
Topic Review
MSGFNet for Remote Sensing Image Change Detection
Change detection (CD) stands out as a pivotal yet challenging task in the interpretation of remote sensing images. Significant developments have been witnessed, particularly with the rapid advancements in deep learning techniques. Nevertheless, challenges such as incomplete detection targets and unsmooth boundaries remain as most CD methods suffer from ineffective feature fusion.
  • 85
  • 08 Feb 2024
Topic Review
Detection Principles of Mars Orbital Radars
The planet Mars, which is in the habitable zone of the solar system and is one of the closest planets to Earth, stands in contrast to Venus; therefore, it has attracted much attention and exploration as the most likely planet for future human colonization. 
  • 104
  • 07 Feb 2024
Topic Review
Height Estimation with Aerial Images
Height estimation is a key component of 3D scene understanding and has long held a significant position in the domains of remote sensing and computer vision. Initial research predominantly focused on stereo or multi-view image matching. With the advent of large-scale depth datasets, research focus has shifted. The effort is centered on estimating distance information from monocular 2D images using supervised learning. Monocular height estimation approaches can be generally categorized into three types: methodologies based on handcrafted features, methodologies utilizing convolutional neural networks (CNN), and methodologies based on attention mechanisms.
  • 74
  • 26 Jan 2024
Topic Review
Methods for Measuring Landslides
Landslides are among the most destructive geo-disasters, causing substantial property damage and safety problems worldwide. Defined as the gravitational movement of mass down a slope, they can result from various events such as severe precipitation, earthquakes, volcanic activity, and human activities.
  • 89
  • 19 Jan 2024
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