Super-resolution mapping of gravel bed surface roughness using terrestrial laser scanning and airborne laser scanning

Guo Hao Huang, Chi-Kuei Wang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The aim of this study is to derive the scaling behavior of gravel-bed roughness of terrestrial laser scanning (TLS) from airborne laser scanning (ALS). We use the fractal dimension, which can be estimated from the slope of log-log variogram of laser scanning data, to represent gravel-bed roughness. The study area is located near the confluence of the Nan-Shih River and Pei-Shih River, northern Taiwan. Two gravel-bed sites with the extent of 6m × 6m were acquired by FARO photon 80, and then in-situ digital surface models (DSMs) were generated with 1 cm × 1cm resolution. ALS survey was conducted by an Optech ALTM 3070 at the density of 247 points/m2. The point cloud data were collected by ALS, which showed smoothed surface of TLS counterparts. In this study, we used the deconvolution procedure to derive the variograms of TLS-derived DSM from the variograms of ALS data. Hence, we could establish the link between the gravel-bed roughness of TLS-derived DSM and ALS data. The results will lead a better understanding of gravel-bed roughness using ALS data for the large-scale areas.

Original languageEnglish
Title of host publication34th Asian Conference on Remote Sensing 2013, ACRS 2013
PublisherAsian Association on Remote Sensing
Pages1635-1640
Number of pages6
Volume2
ISBN (Print)9781629939100
Publication statusPublished - 2013
Event34th Asian Conference on Remote Sensing 2013, ACRS 2013 - Bali, Indonesia
Duration: 2013 Oct 202013 Oct 24

Other

Other34th Asian Conference on Remote Sensing 2013, ACRS 2013
CountryIndonesia
CityBali
Period13-10-2013-10-24

Fingerprint

Gravel
Surface roughness
Scanning
Lasers
Rivers
Deconvolution
Fractal dimension
Photons

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

Cite this

Huang, G. H., & Wang, C-K. (2013). Super-resolution mapping of gravel bed surface roughness using terrestrial laser scanning and airborne laser scanning. In 34th Asian Conference on Remote Sensing 2013, ACRS 2013 (Vol. 2, pp. 1635-1640). Asian Association on Remote Sensing.
Huang, Guo Hao ; Wang, Chi-Kuei. / Super-resolution mapping of gravel bed surface roughness using terrestrial laser scanning and airborne laser scanning. 34th Asian Conference on Remote Sensing 2013, ACRS 2013. Vol. 2 Asian Association on Remote Sensing, 2013. pp. 1635-1640
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Huang, GH & Wang, C-K 2013, Super-resolution mapping of gravel bed surface roughness using terrestrial laser scanning and airborne laser scanning. in 34th Asian Conference on Remote Sensing 2013, ACRS 2013. vol. 2, Asian Association on Remote Sensing, pp. 1635-1640, 34th Asian Conference on Remote Sensing 2013, ACRS 2013, Bali, Indonesia, 13-10-20.

Super-resolution mapping of gravel bed surface roughness using terrestrial laser scanning and airborne laser scanning. / Huang, Guo Hao; Wang, Chi-Kuei.

34th Asian Conference on Remote Sensing 2013, ACRS 2013. Vol. 2 Asian Association on Remote Sensing, 2013. p. 1635-1640.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Huang GH, Wang C-K. Super-resolution mapping of gravel bed surface roughness using terrestrial laser scanning and airborne laser scanning. In 34th Asian Conference on Remote Sensing 2013, ACRS 2013. Vol. 2. Asian Association on Remote Sensing. 2013. p. 1635-1640