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Motion microscopy for visualizing and quantifying small motions
Although the human visual system is remarkable at perceiving and interpreting motions, it has limited sensitivity, and we cannot see motions that are smaller than some threshold. Although difficult to visualize, tiny motions below this threshold are important and can reveal physical mechanisms, or b...
Autores principales: | , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
National Academy of Sciences
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5676878/ https://www.ncbi.nlm.nih.gov/pubmed/29078275 http://dx.doi.org/10.1073/pnas.1703715114 |
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author | Wadhwa, Neal Chen, Justin G. Sellon, Jonathan B. Wei, Donglai Rubinstein, Michael Ghaffari, Roozbeh Freeman, Dennis M. Büyüköztürk, Oral Wang, Pai Sun, Sijie Kang, Sung Hoon Bertoldi, Katia Durand, Frédo Freeman, William T. |
author_facet | Wadhwa, Neal Chen, Justin G. Sellon, Jonathan B. Wei, Donglai Rubinstein, Michael Ghaffari, Roozbeh Freeman, Dennis M. Büyüköztürk, Oral Wang, Pai Sun, Sijie Kang, Sung Hoon Bertoldi, Katia Durand, Frédo Freeman, William T. |
author_sort | Wadhwa, Neal |
collection | PubMed |
description | Although the human visual system is remarkable at perceiving and interpreting motions, it has limited sensitivity, and we cannot see motions that are smaller than some threshold. Although difficult to visualize, tiny motions below this threshold are important and can reveal physical mechanisms, or be precursors to large motions in the case of mechanical failure. Here, we present a “motion microscope,” a computational tool that quantifies tiny motions in videos and then visualizes them by producing a new video in which the motions are made large enough to see. Three scientific visualizations are shown, spanning macroscopic to nanoscopic length scales. They are the resonant vibrations of a bridge demonstrating simultaneous spatial and temporal modal analysis, micrometer vibrations of a metamaterial demonstrating wave propagation through an elastic matrix with embedded resonating units, and nanometer motions of an extracellular tissue found in the inner ear demonstrating a mechanism of frequency separation in hearing. In these instances, the motion microscope uncovers hidden dynamics over a variety of length scales, leading to the discovery of previously unknown phenomena. |
format | Online Article Text |
id | pubmed-5676878 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | National Academy of Sciences |
record_format | MEDLINE/PubMed |
spelling | pubmed-56768782017-11-15 Motion microscopy for visualizing and quantifying small motions Wadhwa, Neal Chen, Justin G. Sellon, Jonathan B. Wei, Donglai Rubinstein, Michael Ghaffari, Roozbeh Freeman, Dennis M. Büyüköztürk, Oral Wang, Pai Sun, Sijie Kang, Sung Hoon Bertoldi, Katia Durand, Frédo Freeman, William T. Proc Natl Acad Sci U S A Physical Sciences Although the human visual system is remarkable at perceiving and interpreting motions, it has limited sensitivity, and we cannot see motions that are smaller than some threshold. Although difficult to visualize, tiny motions below this threshold are important and can reveal physical mechanisms, or be precursors to large motions in the case of mechanical failure. Here, we present a “motion microscope,” a computational tool that quantifies tiny motions in videos and then visualizes them by producing a new video in which the motions are made large enough to see. Three scientific visualizations are shown, spanning macroscopic to nanoscopic length scales. They are the resonant vibrations of a bridge demonstrating simultaneous spatial and temporal modal analysis, micrometer vibrations of a metamaterial demonstrating wave propagation through an elastic matrix with embedded resonating units, and nanometer motions of an extracellular tissue found in the inner ear demonstrating a mechanism of frequency separation in hearing. In these instances, the motion microscope uncovers hidden dynamics over a variety of length scales, leading to the discovery of previously unknown phenomena. National Academy of Sciences 2017-10-31 2017-10-16 /pmc/articles/PMC5676878/ /pubmed/29078275 http://dx.doi.org/10.1073/pnas.1703715114 Text en Freely available online through the PNAS open access option. |
spellingShingle | Physical Sciences Wadhwa, Neal Chen, Justin G. Sellon, Jonathan B. Wei, Donglai Rubinstein, Michael Ghaffari, Roozbeh Freeman, Dennis M. Büyüköztürk, Oral Wang, Pai Sun, Sijie Kang, Sung Hoon Bertoldi, Katia Durand, Frédo Freeman, William T. Motion microscopy for visualizing and quantifying small motions |
title | Motion microscopy for visualizing and quantifying small motions |
title_full | Motion microscopy for visualizing and quantifying small motions |
title_fullStr | Motion microscopy for visualizing and quantifying small motions |
title_full_unstemmed | Motion microscopy for visualizing and quantifying small motions |
title_short | Motion microscopy for visualizing and quantifying small motions |
title_sort | motion microscopy for visualizing and quantifying small motions |
topic | Physical Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5676878/ https://www.ncbi.nlm.nih.gov/pubmed/29078275 http://dx.doi.org/10.1073/pnas.1703715114 |
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