File:A-Novel-Videography-Method-for-Generating-Crack-Extension-Resistance-Curves-in-Small-Bone-Samples-pone.0055641.s002.ogv
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[edit]DescriptionA-Novel-Videography-Method-for-Generating-Crack-Extension-Resistance-Curves-in-Small-Bone-Samples-pone.0055641.s002.ogv |
English: The “whitening-front tracking method”; example 2. Videographic analysis of a three point bending experiment of a miniature SE(B) cortical bone specimen. The “whitening” is localised through the difference image calculated between the current and the first frame of the video, in which no whitening has been developed yet. The whitening-front is then defined as the maximum of the top-left and top-right extrema of the whitening region and the “front” propagation is calculated as the distance between the whitening-front and the initial tip of the notch. Note that the “whitening” starts around the pre-notch and expands upwards, while no visible crack (in images recorded with the specified camera and lens setup) has been yet formed. Importantly, the moment that the whitening-front reaches the top surface, coincides with the moment that the load-displacement curve diverges from linearity and enters the plastic deformation area. |
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Source | Video S2 from Katsamenis O, Jenkins T, Quinci F, Michopoulou S, Sinclair I, Thurner P (2013). "A Novel Videography Method for Generating Crack-Extension Resistance Curves in Small Bone Samples". PLOS ONE. DOI:10.1371/journal.pone.0055641. PMID 23405186. PMC: 3566072. | ||
Author | Katsamenis O, Jenkins T, Quinci F, Michopoulou S, Sinclair I, Thurner P | ||
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current | 15:33, 1 May 2013 | 6.5 s, 1,440 × 1,080 (637 KB) | Open Access Media Importer Bot (talk | contribs) | Automatically uploaded media file from Open Access source. Please report problems or suggestions here. |
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Author | Katsamenis O, Jenkins T, Quinci F, Michopoulou S, Sinclair I, Thurner P |
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Usage terms | http://creativecommons.org/licenses/by/3.0/ |
Image title | The ?whitening-front tracking method?; example 2. Videographic analysis of a three point bending experiment of a miniature SE(B) cortical bone specimen. The ?whitening? is localised through the difference image calculated between the current and the first frame of the video, in which no whitening has been developed yet. The whitening-front is then defined as the maximum of the top-left and top-right extrema of the whitening region and the ?front? propagation is calculated as the distance between the whitening-front and the initial tip of the notch. Note that the ?whitening? starts around the pre-notch and expands upwards, while no visible crack (in images recorded with the specified camera and lens setup) has been yet formed. Importantly, the moment that the whitening-front reaches the top surface, coincides with the moment that the load-displacement curve diverges from linearity and enters the plastic deformation area. |
Software used | |
Date and time of digitizing | 2013 |
Language | English |