Potential of airborne LiDAR data for terrain parameters extraction

Sharma, Mayank Mohan; Garg, Rahul; Badenko, Vladimir; Fedotov, Alexander; Liu, Min; Yao, Ada Lyn

doi:10.1016/j.quaint.2020.07.039

Cited by 29 publications

(12 citation statements)

References 16 publications

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“…Several research studies show the effectiveness of airborne LiDAR in aiding in this road connectivity. The study by M. Sharma et al [26] showed that LiDAR topographical data from DEM and BEM are valuable for creating road network infrastructure projects since they are highly accurate. Meanwhile, S. Buján et al [12] found that road-mapping between paved and unpaved roads from DTM aids in road connection and new road design as it transits from new roads to principal roads.…”

Section: Maintaining Road Connectivitymentioning

confidence: 99%

“…The LiDAR system consists of a laser scanner; a range unit (ranging); control, monitoring and recording devices; a differential global positioning system (DGPS) and orientation position systems, namely inertial navigation systems (INS). Laser scanners play a role in determining physical attributes such as altitude, and the DGPS and INS can record the location and position of the target object through aircraft (x, y, z) three-dimensional geological coordinates based on the World Geodetic System of 1984 (WGS84) data, as presented in Figure 1 [26][27][28]. Figure 1 shows the LiDAR airborne system consisting of the three main components of the scanner laser, DGPS and Inertial Measurement Unit (IMU).…”

Section: Introductionmentioning

confidence: 99%

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Perceived Usefulness of Airborne LiDAR Technology in Road Design and Management: A Review

et al. 2021

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Airborne light detection and ranging (LiDAR) surveying technology plays an important role in road design, and it is increasingly implemented in the design stage. The ability of LiDAR as a remote sensing technology to be used in non-accessible places (i.e., hilly terrain, steep slope) makes it a powerful tool, and it has the potential to provide benefits that simplify existing design processes for designers and practitioners. This paper reviews the application of airborne LiDAR in road design and factors including items from the perceived usefulness of technology. The context of the future direction of LiDAR technology is highlighted in civil engineering road design, roadway inspection and as-built documentation. The implementation of this technology is expected to assist the end-users in developing more manageable planning for road construction and thus to ensure the usage of LiDAR technology is enhanced from time to time, especially in Malaysia.

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Section: Maintaining Road Connectivitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Perceived Usefulness of Airborne LiDAR Technology in Road Design and Management: A Review

et al. 2021

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“…When generating a DEM from LiDAR, it is generally recommended to generate one cell/pixel of the raster by setting the sampling to 3 × 3, i.e., nine LiDAR points [12]. The recommended minimum is 2 × 2, i.e., four LiDAR points per cell/pixel.…”

Section: Analysis Of the Presence Of Omws Based On Dem Generated From Lidarmentioning

confidence: 99%

“…Currently, ALS is the most widely used tool for data acquisition for DEM generation [12,13]. Many applications of LiDAR data have been published so far [3,4], and this trend is increasing due to better availability, coverage of large areas (including entire countries) and lower costs of LiDAR, or even free availability for scientific purposes.…”

Section: Introductionmentioning

confidence: 99%

Inventory of Locations of Old Mining Works Using LiDAR Data: A Case Study in Slovakia

et al. 2021

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The concept of further sustainable development in the area of administration of the register of old mining works and recent mining works in Slovakia requires precise determination of the locations of the objects that constitute it. The objects in this register have their uniqueness linked with the history of mining in Slovakia. The state of positional accuracy in the registration of objects in its current form is unsatisfactory. Different database sources containing the locations of the old mining works are insufficient and show significant locational deviations. For this reason, it is necessary to precisely locate old mining works using modern measuring technologies. The most effective approach to solving this problem is the use of LiDAR data, which at the same time allow determining the position and above-ground shape of old mining works. Two localities with significant mining history were selected for this case study. Positional deviations in the location of old mining works among the selected data were determined from the register of old mining works in Slovakia, global navigation satellite system (GNSS) measurements, multidirectional hill-shading using LiDAR, and accessible data from the open street map. To compare the positions of identical old mining works from the selected database sources, we established differences in the coordinates (ΔX, ΔY) and calculated the positional deviations of the same objects. The average positional deviation in the total count of nineteen objects comparing documents, LiDAR data, and the register was 33.6 m. Comparing the locations of twelve old mining works between the LiDAR data and the open street map, the average positional deviation was 16.3 m. Between the data sources from GNSS and the registry of old mining works, the average positional deviation of four selected objects was 39.17 m.

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“…In this paper, the currently existing problem regarding the use of médium/high density LIDAR data for the generation of DTM will be described (Sharma et al 2021) and more specifically, the obtaining of contour lines and slope maps drawn from them.…”

Section: Introductionmentioning

confidence: 99%

Noise Reduction in Contour Lines and Slope Maps From Medium/High-Density Lidar Data

Peña¹,

Palacios-Ruiz²,

Santamaría-Palacios³

2021

Proceedings - 3rd Congress in Geomatics Engineering - CIGeo

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The use of medium/high-density LIDAR (Light Detection And Ranging) data for land modelling and DTM (Digital TerrainModel) is becoming more widespread. This level of detail is difficult to achieve with other means or materials. However,the horizontal and vertical geometric accuracy of the LIDAR points obtained, although high, is not homogeneous.Horizontally you can reach precisions around 30-50 cm, while the vertical precision is rarely greater than 10-15 cm. Theresult of LIDAR flights, are clouds of points very close to each other (30-60 cm) with significant elevation variations, evenif the terrain is flat. And this makes the triangulated models TIN (Triangulated Irregular Network) obtained from such LIDARdata especially chaotic. Since contour lines are generated directly from such triangulated models, their appearance showsexcessive noise, with excessively broken and rapidly closed on themselves. Getting smoothed contour liness, withoutdecreasing accuracy, is a challenge for terrain model software. In addition, triangulated models obtained from LIDAR dataare the basis for future slope maps of the land. And for the same reason explained in the previous paragraph, these slopemaps generated from high or medium density LIDAR point clouds are especially heterogeneous. Achieving uniformity andgreater adjustment to reality by reducing the natural noise of LIDAR data is another added challenge. In this paper, theproblem of excessive noise from LIDAR data of high (around 8 points/m2) and medium density (around 2 points/m2) in thegeneration of contour lines and terrain slope maps is raised and solutions are proposed to reduce this noise. All this, in thearea of specific software for the management of TIN models and GIS (Geographic Information System) and adapting thealternatives proposed by these programmes.

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Potential of airborne LiDAR data for terrain parameters extraction

Cited by 29 publications

References 16 publications

Perceived Usefulness of Airborne LiDAR Technology in Road Design and Management: A Review

Perceived Usefulness of Airborne LiDAR Technology in Road Design and Management: A Review

Inventory of Locations of Old Mining Works Using LiDAR Data: A Case Study in Slovakia

Noise Reduction in Contour Lines and Slope Maps From Medium/High-Density Lidar Data

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