Assessment of Accuracy in the Identification of Rock Formations
from Aerial and Terrestrial Laser-Scanning Data

J 2018

Assessment of Accuracy in the Identification of Rock Formations from Aerial and Terrestrial Laser-Scanning Data

PALEČEK, Václav and Petr KUBÍČEK

Basic information

Original name

Assessment of Accuracy in the Identification of Rock Formations from Aerial and Terrestrial Laser-Scanning Data

Authors

PALEČEK, Václav (203 Czech Republic, guarantor, belonging to the institution) and Petr KUBÍČEK (203 Czech Republic, belonging to the institution)

Edition

ISPRS International Journal of Geo-Information, Basel, MDPI AG, Basel, Switzerland, 2018, 2220-9964

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10700 1.7 Other natural sciences

Country of publisher

Switzerland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

full-text

Impact factor

Impact factor: 1.840

RIV identification code

RIV/00216224:14310/18:00101844

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.3390/ijgi7040142

UT WoS

000435186000015

Keywords in English

airborne laser scanning (ALS); terrestrial laser scanning; accuracy assessment; digital terrain model (DTM); 3D model; rock formations

Abstract

V originále

Rock formations are among the most spectacular landscape features both for experts and the public. However, information about these objects is often stored inaccurately in existing spatial databases, their corresponding elevations are missing, or the entire rock object is completely absent. Cartographic depiction is also reduced to a point of areal symbology of a largely generalized character. This paper discusses options in identifying and analyzing rock formations from two digital terrain models (DTMs), DMR 5G and DMR 5G+, and irregularly spaced points of airborne laser-scanning (ALS) data with different point densities. A semi-automatic method allowing rock formations to be identified from DTMs is introduced at the beginning of the paper. A method to evaluate elevation models (volume differences) is subsequently applied and a 3D model of a selected rock object is created from terrestrial laser-scanning data. Finally, positional and volumetric comparisons of that 3D object are performed in 2D, 2.5D, and 3D. The results of the pilot study confirmed that the digital terrain models studied are a reliable source in identifying and updating rock formations using the semi-automatic method introduced. The results show that DMR 5G model quality decreases with increasing fragmentation and relative rock formation height, while the proportion of gross errors increases. The complementary DMR 5G+ is better in terms of location and altitude.

Links

MUNI/A/1251/2017, interní kód MU

Name: Integrovaný výzkum environmentálních změn v krajinné sféře Země III

Investor: Masaryk University, Category A

TJ01000105, research and development project

Name: Využití moderních metod mapování pro tvorbu modelů prvků krajinné sféry, jejich vizualizaci a následná aplikace.

Investor: Technology Agency of the Czech Republic

Citovat

PALEČEK, Václav and Petr KUBÍČEK. Assessment of Accuracy in the Identification of Rock Formations from Aerial and Terrestrial Laser-Scanning Data. ISPRS International Journal of Geo-Information. Basel: MDPI AG, Basel, Switzerland, 2018, vol. 7, No 4, p. nestránkováno, 19 pp. ISSN 2220-9964. Available from: https://dx.doi.org/10.3390/ijgi7040142.

@article{1413756,
   author = {Paleček, Václav and Kubíček, Petr},
   article_location = {Basel},
   article_number = {4},
   doi = {http://dx.doi.org/10.3390/ijgi7040142},
   keywords = {airborne laser scanning (ALS); terrestrial laser scanning; accuracy assessment; digital terrain model (DTM); 3D model; rock formations},
   language = {eng},
   issn = {2220-9964},
   journal = {ISPRS International Journal of Geo-Information},
   note = {Rok uplatnění 2018, odvedeme do RIv až v roce 2019!},
   title = {Assessment of Accuracy in the Identification of Rock Formations from Aerial and Terrestrial Laser-Scanning Data},
   url = {http://www.mdpi.com/2220-9964/7/4/142/htm},
   volume = {7},
   year = {2018}
}

TY  - JOUR
ID  - 1413756
AU  - Paleček, Václav - Kubíček, Petr
PY  - 2018
TI  - Assessment of Accuracy in the Identification of Rock Formations from Aerial and Terrestrial Laser-Scanning Data
JF  - ISPRS International Journal of Geo-Information
VL  - 7
IS  - 4
SP  - nestránkováno
EP  - nestránkováno
PB  - MDPI AG, Basel, Switzerland
SN  - 22209964
N1  - Rok uplatnění 2018, odvedeme do RIv až v roce 2019!
KW  - airborne laser scanning (ALS)
KW  - terrestrial laser scanning
KW  - accuracy assessment
KW  - digital terrain model (DTM)
KW  - 3D model
KW  - rock formations
UR  - http://www.mdpi.com/2220-9964/7/4/142/htm
L2  - http://www.mdpi.com/2220-9964/7/4/142/htm
N2  - Rock formations are among the most spectacular landscape features both for experts and the public. However, information about these objects is often stored inaccurately in existing spatial databases, their corresponding elevations are missing, or the entire rock object is completely absent. Cartographic depiction is also reduced to a point of areal symbology of a largely generalized character. This paper discusses options in identifying and analyzing rock formations from two digital terrain models (DTMs), DMR 5G and DMR 5G+, and irregularly spaced points of airborne laser-scanning (ALS) data with different point densities. A semi-automatic method allowing rock formations to be identified from DTMs is introduced at the beginning of the paper. A method to evaluate elevation models (volume differences) is subsequently applied and a 3D model of a selected rock object is created from terrestrial laser-scanning data. Finally, positional and volumetric comparisons of that 3D object are performed in 2D, 2.5D, and 3D. The results of the pilot study confirmed that the digital terrain models studied are a reliable source in identifying and updating rock formations using the semi-automatic method introduced. The results show that DMR 5G model quality decreases with increasing fragmentation and relative rock formation height, while the proportion of gross errors increases. The complementary DMR 5G+ is better in terms of location and altitude.
ER  -

PALEČEK, Václav and Petr KUBÍČEK. Assessment of Accuracy in the Identification of Rock Formations from Aerial and Terrestrial Laser-Scanning Data. \textit{ISPRS International Journal of Geo-Information}. Basel: MDPI AG, Basel, Switzerland, 2018, vol.~7, No~4, p.~nestránkováno, 19 pp. ISSN~2220-9964. Available from: https://dx.doi.org/10.3390/ijgi7040142.

Detailed Information on Publication Record