vhr imagery orthorectification for lpis using photomod

VHR IMAGERY ORTHORECTIFICATION FOR LPIS USING PHOTOMOD.

Tanya Madzharova Angel Angelov GIS-SOFIA Ltd. Geodetect Ltd.X Internaional Scientific and Technical Conference From imagery to map: Digital photogrammetric technologiesSeptember 2023, 2010, Gaeta, Italy

OVERVIEWTHE PROJECTPROCESSINGRESULTS AND CONTROL

X Internaional Scientific and Technical Conference From imagery to map: Digital photogrammetric technologiesSeptember 2023, 2010, Gaeta, ItalyINTRODUCTION

X Internaional Scientific and Technical Conference From imagery to map: Digital photogrammetric technologiesSeptember 2023, 2010, Gaeta, ItalyOVERVIEW

From 1 January 2007 Bulgaria become part of European UnionTo carry out the obligation like country member of EU, Bulgaria have to create and update LPIS

X Internaional Scientific and Technical Conference From imagery to map: Digital photogrammetric technologiesSeptember 2023, 2010, Gaeta, ItalyFUNCTIONS OF LPISthe unambiguous localisation of all claimed agricultural parcels by farmer and inspectors, and the quantification of all eligible area for crosschecks during the administrative controls by the paying agency. LPIS is the single GIS for Integrated Administration and Control System (IACS).One of the main layer of this GIS is digital orthophotomaps

Well functioning LPIS will greatly facilitate operations by farmer, inspector and paying agency, resulting in a better overall performance. Obviously, a better LPIS substantially improves IACS effectiveness and management of EU Funds.

X Internaional Scientific and Technical Conference From imagery to map: Digital photogrammetric technologiesSeptember 2023, 2010, Gaeta, Italy

To fulfil the requirements Ministry of Agriculture and Food confide creation of Digital ortophotomaps using satellite imagery for part of Bulgarian territory.

The works was implemented by: GIS-Sofia Ltd. Geodetect Ltd. Geokad Ltd.X Internaional Scientific and Technical Conference From imagery to map: Digital photogrammetric technologiesSeptember 2023, 2010, Gaeta, Italy

X Internaional Scientific and Technical Conference From imagery to map: Digital photogrammetric technologiesSeptember 2023, 2010, Gaeta, Italy2. THE PROJECT

Area: The project is part of territory of Bulgaria which is around 40.85% of whole area Purpose of project Creating digital orthophotomaps using satellite imagery.

X Internaional Scientific and Technical Conference From imagery to map: Digital photogrammetric technologiesSeptember 2023, 2010, Gaeta, Italy

X Internaional Scientific and Technical Conference From imagery to map: Digital photogrammetric technologiesSeptember 2023, 2010, Gaeta, Italy Zone 1 - 9 266.79 Zone 2 - 10 703.75 Zone 3 - 15 928.84 Zone 4 - 1 222.79 Zone 5 - 1 246.86 Zone 6 - 1 224.51 Zone 7 - 1 939.62 Zone 8 - 2 223.68 Zone 9 - 501.97 Zone 10 - 934.00 ---------------------------------------------------------------------------------------- Total: 45 192.80 sq.kmArea

X Internaional Scientific and Technical Conference From imagery to map: Digital photogrammetric technologiesSeptember 2023, 2010, Gaeta, ItalySATELLITE IMAGERY USED:

1. GEOEYE - 1 ZONE - 9, 10 DATE - 12.04.2009 .; GSD 0.50 .; CLOUD COVER - 0% - 9%.


2. IKONOS -2 ZONE 1,2,3,4,5,6 DATE - 11.02.2008 28.08.2008, 4.04.2009 27.09.2009 GSD 0.80 .; CLOUD COVER - 0% - 10%.


3. QUICBIRD ZONE 2,3,7,8 DATE - 28.05.2008 16.08.2008, 12.04.2009 24.09.2009 GSD 0.80 . CLOUD COVER - 0% - 0.50%

From December 2009 to January 2010 was made orthorectification of satellite imagery for the project with the following technical specification for the purpose of LPIS:

X Internaional Scientific and Technical Conference From imagery to map: Digital photogrammetric technologiesSeptember 2023, 2010, Gaeta, ItalyTECHNICAL SPECIFICATION

DQ Sub elements Conformance Quality Level & Tolerance Limits Spatial resolution8 bits/channelSpectral Resolution Color (natural or color infrared) General Image Quality Lack of defects and artifacts, which could prevent the visual interpretation of the image Cloud cover

X Internaional Scientific and Technical Conference From imagery to map: Digital photogrammetric technologiesSeptember 2023, 2010, Gaeta, ItalyTECHNICAL SPECIFICATION II

DQ Sub elements Conformance Quality Level & Tolerance Limits Overall clipping

X Internaional Scientific and Technical Conference From imagery to map: Digital photogrammetric technologiesSeptember 2023, 2010, Gaeta, Italy3. PROCESSING

X Internaional Scientific and Technical Conference From imagery to map: Digital photogrammetric technologiesSeptember 2023, 2010, Gaeta, ItalyWORKFLOW

I. Creating the project for each zones


II. Adding images to the project and preliminary radiometric correction


III. Ground control point input and measuring


IV. Tie points measurements


V. Adjustment by RPC coefficients


VI.Creating and editing ROIs


VII.Building orthomosaic, using DEM with 3m pixel size

X Internaional Scientific and Technical Conference From imagery to map: Digital photogrammetric technologiesSeptember 2023, 2010, Gaeta, Italy3. FINAL PRODUCT - ORTHOPHOTOMAPS

X Internaional Scientific and Technical Conference From imagery to map: Digital photogrammetric technologiesSeptember 2023, 2010, Gaeta, ItalyRESULTS AND CONTROLOUR TEAM, GIS-SOFIA, GEODETECT AND GEOKAD,FINISH THE PROJECT SUCCESSFULLY WITH ORTHOPHOTO PRODUCTION OF 3016 MAP SHEETS (4X4 KM), ACCORDING TO TECHNICAL SPECIFICATION.

X Internaional Scientific and Technical Conference From imagery to map: Digital photogrammetric technologiesSeptember 2023, 2010, Gaeta, ItalyTHANK YOU FOR BEST SUPPORT OF OUR COLLEAGUES FROM RACURS COMPANY

THANK YOU FOR ATTENTION

Tanya Madzharova Angel Angelov [email protected] [email protected]

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vhr imagery orthorectification for lpis using photomod

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