File:A-Novel-Videography-Method-for-Generating-Crack-Extension-Resistance-Curves-in-Small-Bone-Samples-pone.0055641.s002.ogv

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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.
Date
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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VP9 1080P 453 kbps Completed 21:24, 15 August 2018 9.0 s
Streaming 1080p (VP9) 450 kbps Completed 05:48, 13 January 2024 1.0 s
VP9 720P 247 kbps Completed 21:24, 15 August 2018 8.0 s
Streaming 720p (VP9) 244 kbps Completed 12:44, 17 January 2024 1.0 s
VP9 480P 144 kbps Completed 21:24, 15 August 2018 5.0 s
Streaming 480p (VP9) 141 kbps Completed 03:42, 17 December 2023 0.0 s
VP9 360P 80 kbps Completed 21:24, 15 August 2018 5.0 s
Streaming 360p (VP9) 77 kbps Completed 17:28, 17 December 2023 1.0 s
VP9 240P 43 kbps Completed 21:24, 15 August 2018 4.0 s
Streaming 240p (VP9) 40 kbps Completed 05:10, 9 December 2023 1.0 s
WebM 360P 256 kbps Completed 15:33, 1 May 2013 10 s
Streaming 144p (MJPEG) 1.06 Mbps Completed 08:29, 29 October 2023 2.0 s
Stereo (Opus) 4 kbps Completed 19:12, 12 November 2023 1.0 s
Stereo (MP3) 130 kbps Completed 01:13, 29 October 2023 1.0 s

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