期刊名称：Archiwum Fotogrametrii, Kartografii i Teledetekcji
印刷版ISSN：2083-2214
出版年度：2009
卷号：20
语种：English
出版社：Main Board of Association of Polish Surveyors
摘要：Every year about 1.5 mln Polish farmers submit applications for direct subsidies from EU money. The mechanism of management and control of these subsidies is very often based on geoinformation technologies being a part of an IACS system. The verification of the applications submitted is done by field measurements (RFV) or by using the so called „Photo” method. Both of these are based on the LPIS (Land Parcel Identification System) data. During 2008 about 107,000 farms in Poland were checked using the „Photo” method,based on satellite or aerial images. The number of anomalies was highest in the Dolnośląskie voivodeship (19%). The paper presents results from a test site located in Milicz. In 2007 airborne laser scanning was performed and orthophotos were created based on aerial images (VEXCEL camera). The test site consisted of 68 parcels (68.57 ha),divided in 13 classes of land-use type. According to the cadastral system (EGiB),the class forest occupies 5.77 ha (14.1%) of test area. Using orthophoto and vector layer of parcels,the operator vectorized areas with forest succession which are not eligible for subsidies. The results show that the forest class occupies an area over 3 times larger (19.04 ha) than in the EGiB data base. The GIS analyses were also performed based on nDSM generated from the ALS point cloud. Three approaches were used with different heights of vegetation (1,2 and 3 m). The analysis was done automatically using ArcGIS (ESRI). The results indicate that there is only a small difference between the “Photo” method and the automatic method based on ALS (19.84 ha). Automatic verification based on classification of aerial or satellite images,supported by information about the height of objects,is recommended for periodic monitoring and control of agricultural areas in Poland.
其他摘要：Około 1.5 mln producentów rolnych w Polsce składa co roku wnioski o dopłaty bezpośrednie z funduszy UE. Mechanizmy zarządzania i kontroli dopłat bezpośrednich opierago wysokości roślinności. Automatyczne przetwarzanie było możliwe dzięki przygotowaniu odp
