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Refining particle positions using circular symmetry
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
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2017 (English)In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 12, no 4, e0175015Article in journal (Refereed) Published
Abstract [en]

Particle and object tracking is gaining attention in industrial applications and is commonly applied in: colloidal, biophysical, ecological, and micro-fluidic research. Reliable tracking information is heavily dependent on the system under study and algorithms that correctly determine particle position between images. However, in a real environmental context with the presence of noise including particular or dissolved matter in water, and low and fluctuating light conditions, many algorithms fail to obtain reliable information. We propose a new algorithm, the Circular Symmetry algorithm (C-Sym), for detecting the position of a circular particle with high accuracy and precision in noisy conditions. The algorithm takes advantage of the spatial symmetry of the particle allowing for subpixel accuracy. We compare the proposed algorithm with four different methods using both synthetic and experimental datasets. The results show that C-Sym is the most accurate and precise algorithm when tracking micro-particles in all tested conditions and it has the potential for use in applications including tracking biota in their environment.

Place, publisher, year, edition, pages
2017. Vol. 12, no 4, e0175015
National Category
Computer Vision and Robotics (Autonomous Systems)
Identifiers
URN: urn:nbn:se:umu:diva-135283DOI: 10.1371/journal.pone.0175015ISI: 000399955200030OAI: oai:DiVA.org:umu-135283DiVA: diva2:1098736
Funder
Swedish Research Council, 2013-5379
Available from: 2017-05-26 Created: 2017-05-26 Last updated: 2017-05-26Bibliographically approved

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Rodriguez, AlvaroZhang, HanqingWiklund, KristerBrodin, TomasKlaminder, JonatanAndersson, PatrikAndersson, Magnus
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Department of PhysicsDepartment of Ecology and Environmental SciencesDepartment of Chemistry
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CiteExportLink to record
Permanent link

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
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  • sv-SE
  • Other locale
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Output format
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