SciELO - Scientific Electronic Library Online

 
vol.13 issue1Classification of hyperkinetic, hypokinetic and normal segments in ventriculographic images, using centerline methodAccess point selection game based on bandwidth restrictions author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Iteckne

Print version ISSN 1692-1798

Abstract

CERQUERA-YACUMAL, Jorge Andrés; CORDOBA-PAPAMIJA, John Edwin; REALPE-CHAMORRO, Judy Cristina  and  FLOREZ-MARULANDA, Juan Fernando. Measurement of pressure losses using computer vision. Iteckne [online]. 2016, vol.13, n.1, pp.64-73. ISSN 1692-1798.

In a hydraulic circuit, the fluid pressure loss when passing through different sections or accessories, and it can be inspected by observing the fluid level in piezometers. This paper presents a development in artificial vision, which allows on-line measurement of pressure levels recorded in sixteen piezometric columns. The technique of background subtraction based in algorithm on Codebook, combined with morphological filtering and junction blobs, are used to obtain piezometrics levels. The processing algorithm is designed in Open CV and supported on Linux. Coefficients of variation of less than 0.1% and maximum error of 1.4% were obtained.

Keywords : Codebook; computer vision; background subtraction; Instrumentation and measurement; Piezometer.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )