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Sistema de correspondencia para cálculo de relación píxel centímetro en mesa de ensamble por cámara web con inclinación

Translated title of the contribution: Correspondence System for Pixel-Centimeter Ratio Calculation in an Assembly Table Using a Tilted Webcam
  • Jose Hernando Mosquera-Delacruz
  • , A Martinez
  • , Sandra Esperanza Nope Rodríguez
  • , Humberto Loaiza
  • , María de los Ángeles Delgado
  • , Juan Felipe Penagos Angrino
  • , Gabriel Alejandro Rodríguez Téllez
  • , Juan David Jamioy-Cabrera

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

A computer vision system was developed that allows calculating the correspondence relationship
between a robotic assembly table and an image captured by a tilted webcam, obtaining a
pixel/centimeter ratio. The system initially captures a color image in RGB format in the visible
spectrum with a resolution of 640x480 pixels, then applies a histogram equalization and
performs a transformation from the RGB plane to the HSV plane, followed by applying red color
filtering to a Rectangular area with thickness at its edges of approximately 1 cm outwards with
rectangular dimensions of 33.2 cm by 23.2 cm which we will call the work area and is
superimposed on a 90 cm by 50 cm metal table.
Once the image is binarized, an edge detection is applied and later a four-sided polygonal
approximation to identify the four corners of the work area, this process results in two rectangles,
one internal and one external, the one with the smallest is taken. area. After this, a perspective
transformation is performed to obtain an image equivalent to having the camera in a top view
position. Experimentally, errors were found in the upper areas of the work area, for this reason
this research proposes a post-processing that serves as a final correction to calculate the proposed
pixel/centimeter ratio
Translated title of the contributionCorrespondence System for Pixel-Centimeter Ratio Calculation in an Assembly Table Using a Tilted Webcam
Original languageSpanish
Title of host publicationCIENCIA, TECNOLOGÍA E INNOVACIÓN: TECNOLOGÍAS APLICADAS
EditorsMaria Alexandra Fajardo Perdomo , Aldemas Junior Mendoza Ramírez, Juan David Jiménez Miranda
Place of PublicationBogotá, Colombia
PublisherEditorial Universidad INCCA
Chapter2
Pages41-61
Number of pages21
Volume1
Edition1
ISBN (Print)978-958-9009-83-3
StatePublished - 30 Aug 2024

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 9 - Industry, Innovation, and Infrastructure
    SDG 9 Industry, Innovation, and Infrastructure

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