About: Individual tree crowns delineation using local maxima approach and seeded region growing technique

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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	Remote sensing applications in forestry can profit from a rapid development of optical sensors. Applied algorithms should be suited to the new properties of the data (very high resolution and wide spectral range). Segmentation of the image into objects is an important task in forestry applications of optical remote sensing. Segmentation of individual tree crowns involves two parts — detection and delineation phase. Local maxima approach and seeded region growing technique are presented as the key concepts. Furthermore improvements, namely histogram equalization and Voronoi diagram, are incorporated. Two datasets were processed and results of the segmentation are presented. Hyperspectral data with spatial resolution of 0.8m were found as a suitable for segmentation process with 84% and 78% accuracy of detection phase and 64% and 52% accuracy in delineation phase respectively. Finally discussion of recommended settings in the algorithm is presented. Remote sensing applications in forestry can profit from a rapid development of optical sensors. Applied algorithms should be suited to the new properties of the data (very high resolution and wide spectral range). Segmentation of the image into objects is an important task in forestry applications of optical remote sensing. Segmentation of individual tree crowns involves two parts — detection and delineation phase. Local maxima approach and seeded region growing technique are presented as the key concepts. Furthermore improvements, namely histogram equalization and Voronoi diagram, are incorporated. Two datasets were processed and results of the segmentation are presented. Hyperspectral data with spatial resolution of 0.8m were found as a suitable for segmentation process with 84% and 78% accuracy of detection phase and 64% and 52% accuracy in delineation phase respectively. Finally discussion of recommended settings in the algorithm is presented. (en)
Title	Individual tree crowns delineation using local maxima approach and seeded region growing technique Individual tree crowns delineation using local maxima approach and seeded region growing technique (en)
skos:prefLabel	Individual tree crowns delineation using local maxima approach and seeded region growing technique Individual tree crowns delineation using local maxima approach and seeded region growing technique (en)
skos:notation	RIV/67179843:_____/11:00359864!RIV12-MZP-67179843
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(SP/2D1/70/08), Z(AV0Z60870520)
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Hanuš, Jan Lukeš, Petr Kaplan, Věroslav Novotný, Jan
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	Centrum výzkumu globální změny AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	204205
http://linked.open...ai/riv/idVysledku	RIV/67179843:_____/11:00359864
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	optical remote sensing; individual tree crowns; local maxima detection; seeded region growing (en)
http://linked.open.../riv/klicoveSlovo	individual tree crowns local maxima detection optical remote sensing seeded region growing
http://linked.open...ontrolniKodProRIV	[7765351CFFD3]
http://linked.open...v/mistoKonaniAkce	Ostrava
http://linked.open...i/riv/mistoVydani	Ostrava
http://linked.open...i/riv/nazevZdroje	GIS Ostrava 2011. Eight international symposium. Ostrava, Czech Rrepbublic , January 2011
http://linked.open...in/vavai/riv/obor	EH
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	ForChange - forest ecosystems status and changes indication related to the global change based on anylysis ecophysiological processes and remote sensing
http://linked.open...UplatneniVysledku	2011
http://linked.open...iv/tvurceVysledku	Hanuš, Jan Kaplan, Věroslav Lukeš, Petr Novotný, Jan
http://linked.open...vavai/riv/typAkce	CST - Celostátní
http://linked.open.../riv/zahajeniAkce	2011-01-24 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Spatial and functional dynamics of biological, ecological and socio-economic systems interacting with global climatic change
number of pages	10 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Technical university
https://schema.org/isbn	978-80-248-2406-2

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