In:
PLOS ONE, Public Library of Science (PLoS), Vol. 18, No. 9 ( 2023-9-8), p. e0290951-
Abstract:
For a transparent well with a known volume capacity, changes in fluid level result in predictable changes in magnification of an overhead light source. For a given well size and fluid, the relationship between volume and magnification can be calculated if the fluid’s index of refraction is known or in a naive fashion with a calibration procedure. Light source magnification can be measured through a camera and processed using computer vision contour analysis with OpenCV. This principle was applied in the design of a 3D printable sensing device using a raspberry pi zero and a camera.
Type of Medium:
Online Resource
ISSN:
1932-6203
DOI:
10.1371/journal.pone.0290951
DOI:
10.1371/journal.pone.0290951.g001
DOI:
10.1371/journal.pone.0290951.g002
DOI:
10.1371/journal.pone.0290951.g003
DOI:
10.1371/journal.pone.0290951.g004
DOI:
10.1371/journal.pone.0290951.g005
DOI:
10.1371/journal.pone.0290951.g006
DOI:
10.1371/journal.pone.0290951.g007
DOI:
10.1371/journal.pone.0290951.g008
DOI:
10.1371/journal.pone.0290951.g009
DOI:
10.1371/journal.pone.0290951.g010
DOI:
10.1371/journal.pone.0290951.t001
DOI:
10.1371/journal.pone.0290951.t002
DOI:
10.1371/journal.pone.0290951.s001
DOI:
10.1371/journal.pone.0290951.s002
DOI:
10.1371/journal.pone.0290951.s003
Language:
English
Publisher:
Public Library of Science (PLoS)
Publication Date:
2023
detail.hit.zdb_id:
2267670-3
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