About: The Optimal Threshold Algorithm and Canny Based Edge Detection in Optical Area and Dimension Measurement

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Příspěvek se zabývá použitím optimálního prahovacího algoritmu a algoritmu vycházejícího z Cannyho hranové detekce pro optická měření rozměru a plochy. (cs) The fluctuating light conditions cause troubles in image processing based area and dimension measurement. This article describes the hardware implementation and measured properties of canny-based edge detection [5] and an optimal thresholding method. Both units were implemented on proprietary FPGA-based image processing system for %22on the fly%22 measurement. The optimal threshold algorithm presented is able to adapt to changed light conditions and calculates the object size counting the pixels above threshold. The other method uses the first and the second differentiation combined with low-pass filter do locate the object edges and calculates the object size by subtracting their positions. As it uses the maximal slope as edge criteria it is also resistant against illumination changes. The fluctuating light conditions cause troubles in image processing based area and dimension measurement. This article describes the hardware implementation and measured properties of canny-based edge detection [5] and an optimal thresholding method. Both units were implemented on proprietary FPGA-based image processing system for %22on the fly%22 measurement. The optimal threshold algorithm presented is able to adapt to changed light conditions and calculates the object size counting the pixels above threshold. The other method uses the first and the second differentiation combined with low-pass filter do locate the object edges and calculates the object size by subtracting their positions. As it uses the maximal slope as edge criteria it is also resistant against illumination changes. (en)
Title	The Optimal Threshold Algorithm and Canny Based Edge Detection in Optical Area and Dimension Measurement The Optimal Threshold Algorithm and Canny Based Edge Detection in Optical Area and Dimension Measurement (en) Použití optimálního prahovacího algoritmu a algoritmu vycházejícího z Cannyho hranové detekce pro optická měření rozměru a plochy (cs)
skos:prefLabel	The Optimal Threshold Algorithm and Canny Based Edge Detection in Optical Area and Dimension Measurement The Optimal Threshold Algorithm and Canny Based Edge Detection in Optical Area and Dimension Measurement (en) Použití optimálního prahovacího algoritmu a algoritmu vycházejícího z Cannyho hranové detekce pro optická měření rozměru a plochy (cs)
skos:notation	RIV/68407700:21230/08:03146043!RIV09-MSM-21230___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM6840770015)
http://linked.open...vai/riv/dodaniDat	2009
http://linked.open...aciTvurceVysledku	Fischer, Jan Třeštík, Jaroslav
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta elektrotechnická
http://linked.open...dnocenehoVysledku	385079
http://linked.open...ai/riv/idVysledku	RIV/68407700:21230/08:03146043
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Canny based edge detection; FPGA; optical measurements; optimal thresholding algorithm (en)
http://linked.open.../riv/klicoveSlovo	optical measurements FPGA Canny based edge detection optimal thresholding algorithm
http://linked.open...ontrolniKodProRIV	[F02F9974CFDF]
http://linked.open...v/mistoKonaniAkce	Florence
http://linked.open...i/riv/mistoVydani	Florence
http://linked.open...i/riv/nazevZdroje	16th IMEKO TC4 International Symposium
http://linked.open...in/vavai/riv/obor	JA
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...UplatneniVysledku	2008
http://linked.open...iv/tvurceVysledku	Fischer, Jan Třeštík, Jaroslav
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2008-09-22 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Research of Methods and Systems for Measurement of Physical Quantities and Measured Data Processing.
number of pages	6 (xsd:int)
http://purl.org/ne...btex#hasPublisher	University of Florence, Faculty of Engineering and Faculty of Economics
https://schema.org/isbn	978-88-903149-3-3
http://localhost/t...ganizacniJednotka	21230
is http://linked.open...avai/riv/vysledek of	The Optimal Threshold Algorithm and Canny Based Edge Detection in Optical Area and Dimension Measurement The Optimal Threshold Algorithm and Canny Based Edge Detection in Optical Area and Dimension Measurement The Optimal Threshold Algorithm and Canny Based Edge Detection in Optical Area and Dimension Measurement The Optimal Threshold Algorithm and Canny Based Edge Detection in Optical Area and Dimension Measurement

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