ON THE IMPORTANCE OF ADVANCED IMAGE PROCESSING METHODS IN MATERIAL RESEARCH
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F16%3A43902021" target="_blank" >RIV/60461373:22310/16:43902021 - isvavai.cz</a>
Výsledek na webu
<a href="http://www.icct.cz/getattachment/PREDCHOZI-KONFERENCE/2016/Proceedings_ICCT2016.pdf.aspx" target="_blank" >http://www.icct.cz/getattachment/PREDCHOZI-KONFERENCE/2016/Proceedings_ICCT2016.pdf.aspx</a>
DOI - Digital Object Identifier
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Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
ON THE IMPORTANCE OF ADVANCED IMAGE PROCESSING METHODS IN MATERIAL RESEARCH
Popis výsledku v původním jazyce
Scanning electron microscopy and focused ion beam nanotomography belong to the common tools for investigation of microstructural features of numerous materials, e.g., porous media, ceramics, composites and alloys. Secondary electron (SE) and back-scattered electron (BSE) images obtained using these techniques often suffer from noise, non-uniform illumination or lack of contrast. Therefore, there is a continuous need for advanced image processing methods that are capable of remedying these shortcomings. For the purpose of microstructural analysis, the image processing usually includes histogram equalization, filtering in a spatial or frequency domain, and segmentation. The later operation is crucial for unique determination individual phases forming the material. However, without a careful preprocessing step, particularly involving filtering, results of segmentation can be questionable, i.e., locations of phase interfaces can be ambiguous. In an extreme case, segmentation can completely fail. In this contribution, we deal with the application of PDE-based image analysis of SE and BSE images of porous media and composite materials and its combination with other preprocessing steps, particularly histogram equalization. Using public domain software and our parallel computer code, we evaluate the performance of various edge-preserving diffusion filters and other classic blurring filters for porous media in two- and three-dimensional spatial domains. To do so, we segment the images using Otsu's method [4] of global thresholding and compare resulting macroscopic measures, e.g., volume fractions or a specific surface area, with their counterparts obtained independently of image analysis. In all cases, the edge-preserving diffusion filters beat the classic ones.
Název v anglickém jazyce
ON THE IMPORTANCE OF ADVANCED IMAGE PROCESSING METHODS IN MATERIAL RESEARCH
Popis výsledku anglicky
Scanning electron microscopy and focused ion beam nanotomography belong to the common tools for investigation of microstructural features of numerous materials, e.g., porous media, ceramics, composites and alloys. Secondary electron (SE) and back-scattered electron (BSE) images obtained using these techniques often suffer from noise, non-uniform illumination or lack of contrast. Therefore, there is a continuous need for advanced image processing methods that are capable of remedying these shortcomings. For the purpose of microstructural analysis, the image processing usually includes histogram equalization, filtering in a spatial or frequency domain, and segmentation. The later operation is crucial for unique determination individual phases forming the material. However, without a careful preprocessing step, particularly involving filtering, results of segmentation can be questionable, i.e., locations of phase interfaces can be ambiguous. In an extreme case, segmentation can completely fail. In this contribution, we deal with the application of PDE-based image analysis of SE and BSE images of porous media and composite materials and its combination with other preprocessing steps, particularly histogram equalization. Using public domain software and our parallel computer code, we evaluate the performance of various edge-preserving diffusion filters and other classic blurring filters for porous media in two- and three-dimensional spatial domains. To do so, we segment the images using Otsu's method [4] of global thresholding and compare resulting macroscopic measures, e.g., volume fractions or a specific surface area, with their counterparts obtained independently of image analysis. In all cases, the edge-preserving diffusion filters beat the classic ones.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
JI - Kompositní materiály
OECD FORD obor
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Návaznosti výsledku
Projekt
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Návaznosti
S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2016
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
PROCEEDINGS of the 4th International Conference on Chemical Technology
ISBN
978-80-86238-94-4
ISSN
2336-811X
e-ISSN
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Počet stran výsledku
6
Strana od-do
268-273
Název nakladatele
Česká společnost průmyslové chemie (ČSPCH)
Místo vydání
Praha
Místo konání akce
Mikulov, Czech Republic
Datum konání akce
25. 4. 2016
Typ akce podle státní příslušnosti
CST - Celostátní akce
Kód UT WoS článku
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