A high-precision fusion bathymetry of multi-channel waveform curvature for bathymetric LiDAR systems

Wu, Lin; Chen, Yifu; Le, Yuan; Qian, Yue; Zhang, Dongfang; Wang, Lizhe

doi:10.1016/j.jag.2024.103770

Cited by 3 publications

References 24 publications

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Innovative and Cost‐Effective Approaches to the Measurement of Sediment Levels in Small Water Reservoirs

Paseka

2024

Land Degrad Dev

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Sedimentation in small water reservoirs poses a critical challenge with significant environmental, economic, and social implications. To address this issue, this study will employ three measurement techniques—GNSS RTK Trimble R8s, Echolot HDS LIVE 7 with Active Imaging 3‐in‐1, and the Mivardi Carp Scout bait boat—to assess sediment levels in Žebětínský Pond in Brno, Czech Republic. The research reveals that each method offers distinct advantages and limitations. Through measurement and triangulated networks, the study creates a digital terrain model that facilitates the determination of reservoir volume and sediment levels. The comparison shows that the cost‐effective alternatives, Echolot HDS LIVE 7 and Mivardi Carp Scout, provide sufficiently accurate results. The evaluation shows that while the GNSS RTK Trimble R8s has the highest level of accuracy and is unique in its ability to measure both along the shoreline of the reservoir and the hard bottom, it comes with increased costs and logistical challenges. The Echolot HDS LIVE 7 and Mivardi Carp Scout offer efficient, cost‐effective solutions that are suitable for a quick estimate of sediment thickness. This research contributes to the use of reliable mathematical models and water management strategies, advocating for a pragmatic approach to the selection of methods based on the project characteristics. The study provides valuable insights into sediment measurement techniques, guiding future endeavors in reservoir management and environmental conservation. It is also used to easily indicate the loss of arable land in the catchment upstream of the reservoir.

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Innovative and Cost‐Effective Approaches to the Measurement of Sediment Levels in Small Water Reservoirs

Paseka

2024

Land Degrad Dev

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Review: optimizing LiDAR technology for enhanced 3D remote sensing

Javaid,

Mahmood,

Mehmood

2024

Optical Instrument Science, Technology, and Applications III

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Remote sensing is a very promising technology and technique for gathering data about whatever is under consideration. It has become indispensable for various applications like physical geography, bathymetry, forestry, archeology, agriculture, and autonomous vehicles. This technology uses diversified instruments, sensors, and imaging devices to accomplish its goal. There are different types of remote sensing, in which our focus is active remote sensing. Active remote sensing involves the emission of pulses and the capturing of their returns. LiDAR (Light Detection and Ranging) is a cutting-edge technology that is highly effective for sensing applications. LiDAR technology is a key player in measuring distances and creating a 3D illustration. In the past, multiple works have been published on LiDAR for various applications to get a large field of view, smaller spot size, and high spatial resolution. The focus of this review paper is to describe the development of a LiDAR system through cutting-edge simulation tools, such as Zemax. To cope with the exclusive demands of remote sensing, the tools provide us the opportunity to refine the LiDAR designs and enhance the methods of data collection, accuracy, speed, and spatial resolution. The internal components like scanners, detectors, and sources can also be optimized for better performance. The outcome of this review work is to help researchers enhance the LiDAR performance for various exciting applications in remote sensing, specifically in the fields that require precise and high 3D resolution for monitoring and decision-making.

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High-accuracy shallow-water bathymetric method including reliability evaluation based on Sentinel-2 time-series images and ICESat-2 data

Le,

Sun,

Chen

et al. 2024

Front. Mar. Sci.

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Shallow-water bathymetric maps provide vital geographic information for various coastal and marine applications such as environmental management, engineering construction, oil and gas resource exploration, and ocean fisheries. Recently, satellite-derived bathymetry (SDB) has emerged as an alternative approach to shallow-water bathymetry, particularly in hard-to-reach areas. In this research, an innovative approach to bathymetry was introduced. This method provides a reliable approach for generating high-accuracy and high-reliability shallow water bathymetry results. By using Sentinel-2 time series imagery combined with ICESat-2 data, four bathymetry results at different time points are produced based on four traditional bathymetry methods. For the results at each location, a statistical method is applied to evaluate the bathymetry results, remove erroneous data, and generate high-confidence bathymetry results. The validation results indicated that the accuracy of the proposed bathymetric method achieved an R² range of 0.96 to 0.99 and an RMSE between 0.42 and 1.18 meters. When contrasted with traditional methods that utilize a single temporal image, a notable enhancement in bathymetric accuracy was observed.

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A high-precision fusion bathymetry of multi-channel waveform curvature for bathymetric LiDAR systems

Cited by 3 publications

References 24 publications

Innovative and Cost‐Effective Approaches to the Measurement of Sediment Levels in Small Water Reservoirs

Innovative and Cost‐Effective Approaches to the Measurement of Sediment Levels in Small Water Reservoirs

Review: optimizing LiDAR technology for enhanced 3D remote sensing

High-accuracy shallow-water bathymetric method including reliability evaluation based on Sentinel-2 time-series images and ICESat-2 data

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