About: Overview of the Methods for Orto-image Generation From the Coloured Laser Scan Dataset

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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)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.cipa2011.cz
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 Lab 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 Lab color space model. (en)
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 (en)
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 (en)
skos:notation	RIV/68407700:21110/11:00192082!RIV12-MSM-21110___
http://linked.open...avai/predkladatel	Fakulta stavební
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM6840770040)
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Řezníček, 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	České vysoké učení technické v Praze / Fakulta stavební
http://linked.open...dnocenehoVysledku	219253
http://linked.open...ai/riv/idVysledku	RIV/68407700:21110/11:00192082
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	photogrammetry; laser scanning; ortoimage; image analysis (en)
http://linked.open.../riv/klicoveSlovo	ortoimage image analysis laser scanning photogrammetry
http://linked.open...ontrolniKodProRIV	[B2CBBE7D07B4]
http://linked.open...v/mistoKonaniAkce	Praha
http://linked.open...i/riv/mistoVydani	Praha
http://linked.open...i/riv/nazevZdroje	Proceedings of the 23rd CIPA Symposium
http://linked.open...in/vavai/riv/obor	DE
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	1 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...iv/tvurceVysledku	Řezníček, Jan
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open.../riv/zahajeniAkce	2011-09-11 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Application of radionuclides and ionising radiation
number of pages	4 (xsd:int)
http://purl.org/ne...btex#hasPublisher	České vysoké učení technické v Praze. Fakulta stavební. Katedra mapování a kartografie
https://schema.org/isbn	978-80-01-04885-6
http://localhost/t...ganizacniJednotka	21110
is http://linked.open...avai/riv/vysledek of	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

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