Počet záznamů: 1
Generating standardized image data for testing and calibrating quantification of volumes, surfaces, lengths, and object counts in fibrous and porous materials using X-ray microtomography
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SYSNO ASEP 0497407 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Generating standardized image data for testing and calibrating quantification of volumes, surfaces, lengths, and object counts in fibrous and porous materials using X-ray microtomography Tvůrce(i) Jiřík, M. (CZ)
Bartoš, M. (CZ)
Tomášek, P. (CZ)
Malečková, A. (CZ)
Kural, T. (CZ)
Horáková, J. (CZ)
Lukáš, D. (CZ)
Suchý, Tomáš (USMH-B) RID, ORCID, SAI
Kochová, P. (CZ)
Hubálek Kalbáčová, M. (CZ)
Králíčková, M. (CZ)
Tonar, Z. (CZ)Zdroj.dok. Microscopy Research and Technique - ISSN 1059-910X
Roč. 81, č. 6 (2018), s. 551-568Poč.str. 18 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova fibers ; Python ; pores ; scaffolds ; spatial statistics ; stereology ; textile Vědní obor RIV JC - Počítačový hardware a software Obor OECD Computer hardware and architecture CEP NV15-25813A GA MZd - Ministerstvo zdravotnictví Institucionální podpora USMH-B - RVO:67985891 UT WOS 000434151700004 EID SCOPUS 85042388467 DOI 10.1002/jemt.23011 Anotace Quantification of the structure and composition of biomaterials using micro-CT requires image segmentation due to the low contrast and overlapping radioopacity of biological materials. The amount of bias introduced by segmentation procedures is generally unknown. We aim to develop software that generates three-dimensional models of fibrous and porous structures with known volumes, surfaces, lengths, and object counts in fibrous materials and to provide a software tool that calibrates quantitative micro-CT assessments. Virtual image stacks were generated using the newly developed software TeIGen, enabling the simulation of micro-CT scans of unconnected tubes, connected tubes, and porosities. A realistic noise generator was incorporated. Forty image stacks were evaluated using micro-CT, and the error between the true known and estimated data was quantified. Starting with geometric primitives, the error of the numerical estimation of surfaces and volumes was eliminated, thereby enabling the quantification of volumes and surfaces of colliding objects. Analysis of the sensitivity of the thresholding upon parameters of generated testing image sets revealed the effects of decreasing resolution and increasing noise on the accuracy of the micro-CT quantification. The size of the error increased with decreasing resolution when the voxel size exceeded 1/10 of the typical object size, which simulated the effect of the smallest details that could still be reliably quantified. Open-source software for calibrating quantitative micro-CT assessments by producing and saving virtually generated image data sets with known morphometric data was made freely available to researchers involved in morphometry of three-dimensional fibrillar and porous structures in micro-CT scans. Pracoviště Ústav struktury a mechaniky hornin Kontakt Iva Švihálková, svihalkova@irsm.cas.cz, Tel.: 266 009 216 Rok sběru 2019
Počet záznamů: 1