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Journals / Harita Teknolojileri Elektronik Dergisi / 2015 / Cilt: 7 - Sayı: 3

The Effect of Airborne LiDAR Point Cloud to the Accuracy of Digital Elevation Model

Hava LiDAR Nokta Bulutunun Sayısal Yükseklik Modeli Doğruluğuna Etkisi

Murat UYSAL
Mustafa YILMAZ
Pages
15–20
Publication Date
2022-10-18
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The results of DEMS interpolated by Kriging are evaluated in terms of root mean square error of sampling points.

📌 3 Key Takeaways

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Objective & Hypothesis:Abstract Intense and accurate data supplying come into prominence for the creation of Digital Elevation Model (DEM) that has been used in diverse fields of engineering including geomatics, construction, mining, agriculture, architecture and planning in parallel with the developments in data processing technologies.
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Key Findings & Data:DEMs with 1%, 5, 25, 50 and 75 sampling density constituted by the uniform method are compared with the DEM constituted with all airborne LiDAR point cloud over a selected test area.
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Conclusion & Impact:The results of DEMS interpolated by Kriging are evaluated in terms of root mean square error of sampling points.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Abstract Intense and accurate data supplying come into prominence for the creation of Digital Elevation Model (DEM) that has been used in diverse fields of engineering including geomatics, construction, mining, agriculture, architecture and planning in parallel with the developments in data processing technologies. LiDAR (Light Detection and Ranging) formed by the integration of GPS (Global Positioning System), IMU (Inertial Measurement Unit) and laser scanning technologies stands out in the digital elevation data production according to the conventional methods. In this study, the effect of airborne LiDAR point cloud sampling density to the accuracy of DEMS is investigated. DEMs with 1%, 5, 25, 50 and 75 sampling density constituted by the uniform method are compared with the DEM constituted with all airborne LiDAR point cloud over a selected test area. The results of DEMS interpolated by Kriging are evaluated in terms of root mean square error of sampling points.

Özet

Özet Veri işleme teknolojilerindeki gelişmelere paralel olarak harita, inşaat, maden, ziraat, mimari ve planlama gibi birçok mühendislik alanında yaygın olarak kullanılmaya başlanan Sayısal Yükseklik Modeli (SYM) nin oluşturulmasında yoğun ve doğru yükseklik verisi temini konusu önem kazanmaktadır. GPS (Global Positioning System), IMU (Inertial Measurement Unit) ve lazer tarama teknolojilerinin entegrasyonu ile oluşturulmuş üç boyutlu veri toplama yöntemi olan LiDAR (Light Detection and Ranging) sayısal yükseklik verisi üretimi konusunda klasik yöntemlere göre öne çıkmaktadır. Bu çalışmada hava LiDAR yöntemi ile temin edilen nokta bulutlarının örnekleme yoğunluğunun oluşturulan SYM lerin doğruluğu üzerindeki etkisi araştırılmıştır. Seçilen test alanında uniform metoduna göre %1, 5, 25, 50 ve 75 örnekleme yoğunluğu ile oluşturulan SYM ler hava LiDAR nokta bulutunun tamamı kullanılarak oluşturulan SYM ile karşılaştırılmıştır. Kriging enterpolasyon yönteminin kullanıldığı SYM lere ait sonuçlar örnekleme noktalarından elde edilen karesel ortalama hata değerlerine göre incelenmiştir.

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Cite This Article

UYSAL, M., YILMAZ, M. (2022). The Effect of Airborne LiDAR Point Cloud to the Accuracy of Digital Elevation Model. Harita Teknolojileri Elektronik Dergisi, Cilt: 7 - Sayı: 3, 15–20. https://ajindex.com/articles/533988

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