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 a Petr KUBÍČEK

Základní údaje

Originální název

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

Autoři

PALEČEK, Václav (203 Česká republika, garant, domácí) a Petr KUBÍČEK (203 Česká republika, domácí)

Vydání

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

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10700 1.7 Other natural sciences

Stát vydavatele

Švýcarsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

full-text

Impakt faktor

Impact factor: 1.840

Kód RIV

RIV/00216224:14310/18:00101844

Organizační jednotka

Přírodovědecká fakulta

DOI

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

UT WoS

000435186000015

Klíčová slova anglicky

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

Štítky

NZ, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 30. 4. 2019 08:53, Mgr. Tereza Miškechová

Anotace

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.

Návaznosti

MUNI/A/1251/2017, interní kód MU

Název: Integrovaný výzkum environmentálních změn v krajinné sféře Země III

Investor: Masarykova univerzita, Integrovaný výzkum environmentálních změn v krajinné sféře Země III, DO R. 2020_Kategorie A - Specifický výzkum - Studentské výzkumné projekty

TJ01000105, projekt VaV

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

Investor: Technologická agentura ČR, Využití moderních metod mapování pro tvorbu modelů prvků krajinné sféry, jejich vizualizaci a následná aplikace

Citovat

PALEČEK, Václav a 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, roč. 7, č. 4, s. nestránkováno, 19 s. ISSN 2220-9964. Dostupné z: 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 a 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, roč.~7, č.~4, s.~nestránkováno, 19 s. ISSN~2220-9964. Dostupné z: https://dx.doi.org/10.3390/ijgi7040142.

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