Analýza snímků půdních vzorků pořízených neutronovou a rentgenovou tomografií

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F11%3A00187212" target="_blank" >RIV/68407700:21110/11:00187212 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

čeština

Název v původním jazyce

Analýza snímků půdních vzorků pořízených neutronovou a rentgenovou tomografií

Popis výsledku v původním jazyce

Water flow in a soils is accompanied by an unexplained phenomens such as hydraulic conductivity instability. This paper focuses on analysis of image data obtained during the imaging of soil sample by non-invasive imaging metods. Ponding infiltration experiment and a breakthrough test was performed on an undisturbed soil sample. Soil sample was imaged by a neutron an X-ray imaging during the infiltration experiments. Two X-ray and 25 neutron tomographs were obtained and reconstructed. The important taskof image data analysis is segmentation of images. In current study the focus was on segmentation of bubbles of entrapped air, which are suspected to cause the quasi-saturated hydraulic conductivity instability. The goal of this study was the assessment of four image filters, used as a first step of image segmentation. Four smoothing and edge detection image filters were compared, while meanshift filter showed the best performance.

Název v anglickém jazyce

ThiAnalysis of image data obtained during the imaging of soil sample by non-invasive imaging methods

Popis výsledku anglicky

Water flow in a soils is accompanied by an unexplained phenomens such as hydraulic conductivity instability. This paper focuses on analysis of image data obtained during the imaging of soil sample by non-invasive imaging metods. Ponding infiltration experiment and a breakthrough test was performed on an undisturbed soil sample. Soil sample was imaged by a neutron an X-ray imaging during the infiltration experiments. Two X-ray and 25 neutron tomographs were obtained and reconstructed. The important taskof image data analysis is segmentation of images. In current study the focus was on segmentation of bubbles of entrapped air, which are suspected to cause the quasi-saturated hydraulic conductivity instability. The goal of this study was the assessment of four image filters, used as a first step of image segmentation. Four smoothing and edge detection image filters were compared, while meanshift filter showed the best performance.

Druh

D - Stať ve sborníku

CEP obor

DF - Pedologie

OECD FORD obor

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Projekt

<a href="/cs/project/GA103%2F08%2F1552" target="_blank" >GA103/08/1552: Proudění vody a transport rozpuštěných látek v pórovitém prostředí za přítomnosti nespojité plynné fáze</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of peer-reviewed contributions - 19th International Poster Day

ISBN

978-80-89139-26-2

ISSN

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e-ISSN

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Počet stran výsledku

15

Strana od-do

550-564

Název nakladatele

Ústav hydrológie SAV a Geofyzikální ústav SAV

Místo vydání

Bratislava

Místo konání akce

Bratislava

Datum konání akce

10. 11. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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