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Statements

Subject Item
n2:RIV%2F68407700%3A21110%2F11%3A00192082%21RIV12-MSM-21110___
rdf:type
skos:Concept n17:Vysledek
rdfs:seeAlso
http://www.cipa2011.cz
dcterms:description
Laser scanning is a modern technology suitable for culture heritage documentation. More and more it becomes the standard for accurate metric documentation of larger sites, historical buildings as well as sculptures, archeological findings etc. From the beginning it was always problem how to present the data for non-specialist in the field of laser scanning (historians, conservators, restorations, public etc.). One of the simplest way is to generate the so called orto images in 2D dimension which is very simple for viewing and editing in all kind of CAD based software. This paper reviews the most common simple methods for orto image generation from the colored laser scan dataset and introduces the new technique, which is more reliable for additional editing, especially image vectorization. The new method is based on a computation of the histogram of the laser scan dataset in 3D. The values of the function for x coordinates and y coordinates are the number of points pertaining in the square defined by pixel size of the orto image. This one channel representation of the laser scan data density in 2D is combined with the color representation of the data and fused in the final colored density model of the measured object. The fusion is done by using the L*a*b color space model. Laser scanning is a modern technology suitable for culture heritage documentation. More and more it becomes the standard for accurate metric documentation of larger sites, historical buildings as well as sculptures, archeological findings etc. From the beginning it was always problem how to present the data for non-specialist in the field of laser scanning (historians, conservators, restorations, public etc.). One of the simplest way is to generate the so called orto images in 2D dimension which is very simple for viewing and editing in all kind of CAD based software. This paper reviews the most common simple methods for orto image generation from the colored laser scan dataset and introduces the new technique, which is more reliable for additional editing, especially image vectorization. The new method is based on a computation of the histogram of the laser scan dataset in 3D. The values of the function for x coordinates and y coordinates are the number of points pertaining in the square defined by pixel size of the orto image. This one channel representation of the laser scan data density in 2D is combined with the color representation of the data and fused in the final colored density model of the measured object. The fusion is done by using the L*a*b color space model.
dcterms:title
Overview of the Methods for Orto-image Generation From the Coloured Laser Scan Dataset Overview of the Methods for Orto-image Generation From the Coloured Laser Scan Dataset
skos:prefLabel
Overview of the Methods for Orto-image Generation From the Coloured Laser Scan Dataset Overview of the Methods for Orto-image Generation From the Coloured Laser Scan Dataset
skos:notation
RIV/68407700:21110/11:00192082!RIV12-MSM-21110___
n17:predkladatel
n18:orjk%3A21110
n3:aktivita
n12:Z
n3:aktivity
Z(MSM6840770040)
n3:dodaniDat
n9:2012
n3:domaciTvurceVysledku
n13:6273998
n3:druhVysledku
n5:D
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n4:predkladatel
n3:idSjednocenehoVysledku
219253
n3:idVysledku
RIV/68407700:21110/11:00192082
n3:jazykVysledku
n22:eng
n3:klicovaSlova
photogrammetry; laser scanning; ortoimage; image analysis
n3:klicoveSlovo
n6:image%20analysis n6:photogrammetry n6:ortoimage n6:laser%20scanning
n3:kontrolniKodProRIV
[B2CBBE7D07B4]
n3:mistoKonaniAkce
Praha
n3:mistoVydani
Praha
n3:nazevZdroje
Proceedings of the 23rd CIPA Symposium
n3:obor
n8:DE
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
1
n3:rokUplatneniVysledku
n9:2011
n3:tvurceVysledku
Řezníček, Jan
n3:typAkce
n10:EUR
n3:zahajeniAkce
2011-09-11+02:00
n3:zamer
n21:MSM6840770040
s:numberOfPages
4
n15:hasPublisher
České vysoké učení technické v Praze. Fakulta stavební. Katedra mapování a kartografie
n20:isbn
978-80-01-04885-6
n7:organizacniJednotka
21110