Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Real Time Decoding of Color Symbol for Optical Positioning System
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Avdelningen för elektronikkonstruktion. COMSATS Institute of Information Technology, Abbottabad, Pakistan.
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Avdelningen för elektronikkonstruktion. (STC)
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Avdelningen för elektronikkonstruktion. (STC)ORCID-id: 0000-0001-5615-7347
Norwegian University of Science and Technology, Trondheim, Norway .
Vise andre og tillknytning
2015 (engelsk)Inngår i: International Journal of Advanced Robotic Systems, ISSN 1729-8806, E-ISSN 1729-8814, Vol. 12, nr 5Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

This paper presents the design and real-time decoding of a color symbol that can be used as a reference marker for optical navigation. The designed symbol has a circular shape and is printed on paper using two distinct colors. This pair of colors is selected based on the highest achievable signal to noise ratio. The symbol is designed to carry eight bit information. Real time decoding of this symbol is performed using a heterogeneous combination of Field Programmable Gate Array (FPGA) and a microcontroller.  An image sensor having a resolution of 1600 by 1200 pixels is used to capture images of symbols in complex backgrounds. Dynamic image segmentation, component labeling and feature extraction was performed on the FPGA. The region of interest was further computed from the extracted features. Feature data belonging to the symbol was sent from the FPGA to the microcontroller. Image processing tasks are partitioned between the FPGA and microcontroller based on data intensity. Experiments were performed to verify the rotational independence of the symbols. The maximum distance between camera and symbol allowing for correct detection and decoding was analyzed. Experiments were also performed to analyze the number of generated image components and sub-pixel precision versus different light sources and intensities. The proposed hardware architecture can process up to 55 frames per second for accurate detection and decoding of symbols at two Megapixels resolution. The power consumption of the complete system is 342mw.

sted, utgiver, år, opplag, sider
2015. Vol. 12, nr 5
Emneord [en]
Indoor navigation, Reference symbol, Robotic vision
HSV kategori
Identifikatorer
URN: urn:nbn:se:miun:diva-23168DOI: 10.5772/59680ISI: 000350647600001Scopus ID: 2-s2.0-84923346270Lokal ID: STCOAI: oai:DiVA.org:miun-23168DiVA, id: diva2:753601
Forskningsfinansiär
Knowledge FoundationTilgjengelig fra: 2014-10-08 Laget: 2014-10-08 Sist oppdatert: 2017-10-27bibliografisk kontrollert
Inngår i avhandling
1. Real-Time Optical Position Sensing on FPGA
Åpne denne publikasjonen i ny fane eller vindu >>Real-Time Optical Position Sensing on FPGA
2014 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
sted, utgiver, år, opplag, sider
Sundsvall: Mid Sweden University, 2014. s. 95
Serie
Mid Sweden University doctoral thesis, ISSN 1652-893X ; 176
HSV kategori
Identifikatorer
urn:nbn:se:miun:diva-24035 (URN)STC (Lokal ID)978-91-87557-29-3 (ISBN)STC (Arkivnummer)STC (OAI)
Veileder
Tilgjengelig fra: 2015-01-08 Laget: 2015-01-07 Sist oppdatert: 2017-03-06bibliografisk kontrollert

Open Access i DiVA

fulltext(962 kB)395 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 962 kBChecksum SHA-512
56a6003455dfcccd7e5a63f85a3b2cf643a8385ae8327e989129466e2ebfaf5c5dd435ad9924e3f15cee6b525288d4a716ce3a52a8b07e85124f14b9ebccc6ae
Type fulltextMimetype application/pdf

Andre lenker

Forlagets fulltekstScopus

Søk i DiVA

Av forfatter/redaktør
Malik, Abdul WaheedThörnberg, BennyAnwar, QaiserShahzad, Khurram
Av organisasjonen
I samme tidsskrift
International Journal of Advanced Robotic Systems

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 395 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 797 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf