Results 161 to 170 of about 2,180 (195)
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Peripheral Acuity and Photointerpretation Performance
Human Factors: The Journal of the Human Factors and Ergonomics Society, 1978Previous laboratory studies have shown a relationship between measures of peripheral acuity and performance in searching for artificial targets. In the present study, these findings were extended to the case of real targets in aerial photography using trained image interpreters.
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Cattail Invasion of Sedge/Grass Meadows in Lake Ontario: Photointerpretation Analysis of Sixteen Wetlands over Five Decades [PDF]
Journal of Great Lakes Research, 2008 Photointerpretation studies were conducted to evaluate vegetation changes in wetlands of Lake Ontario and the upper St. Lawrence River associated with regulation of water levels since about 1960. The studies used photographs from 16 sites (four each from
Douglas A Wilcox, Kurt P Kowalski
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Computer-supported geological photointerpretation
Photogrammetria, 1981Abstract Computerized photogrammetric instrumentation has added a new dimension to geologic photointerpretation. This paper describes a first approach to creating specific geologic procedures for digitized analog plotters. A desk-top computer is connected to a Kern PG2 plotting instrument, and programs have been developed to calculate geological ...
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Photointerpretation at the Production of the New Hellenic LPIS
2010According to the regulations of the EU, each member state is obliged to develop and update a Land Parcel Identification System so as to control and analyze the Farmers Single Aid Payment Scheme. With respect to the EU Technical Specs, the Hellenic territory mainly occupied by Agricultural Land Uses should be photointerpretated, classified and digitized
Varras Gregory +5 more
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Effects of Ancillary Information upon Photointerpreter Performance
Human Factors: The Journal of the Human Factors and Ergonomics Society, 1972The effects of ancillary information upon photointerpreter performance were evaluated under four modes of system operation, and an assessment of the influence of a variety of “information” variables upon interpreter performance was carried out. Thirty-two trained surveillance officers identified single annotated targets within controlled and matched ...
Jerrold M. Levine, Donald Eldredge
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Aerial-photointerpretation of landslides along the Ohio and Mississippi rivers
Environmental and Engineering Geoscience, 2000Abstract A landslide inventory was conducted along the Ohio and Mississippi rivers in the New Madrid Seismic Zone of southern Illinois, between the towns of Olmsted and Chester, Illinois. Aerial photography and field reconnaissance identified 221 landslides of three types: rock/debris falls, block slides, and undifferentiated rotational ...
Wen-June Su, Christopher Stohr
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Putting the user into the active learning loop: Towards realistic but efficient photointerpretation
2012 IEEE International Geoscience and Remote Sensing Symposium, 2012In recent years, several studies have been published about the smart definition of training set using active learning algorithms. However, none of these works consider the contradiction between the active learning methods, which rank the pixels according to their uncertainty, and the confidence of the user in labeling, which is related both to the ...
Devis Tuia, Jordi Muñoz-Marí
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Photointerpretation of archival orthophoto of the Poličnik area
2018In the last few decades, overgrowing of farm land has been observed on the area of Poličnik (Zadar, Croatia). Favourable climatic conditions and the geographic position are of paramount importance for the agriculture and economy. Mapping vegetation possibility using traditional methods is unlikely due to the size of the surface itself, the available ...
Ljubičić, Ivica, Bilušić, Magdalena
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Dumping areas detection by aerial photointerpretation
1992This note concerns the problem related to the identification of dumping areas on small scale air photographs. The method defined envisages the use of low cost instrumentation. Here we outline the very positive results achieved on a sample of data related to the territory of an Italian ...
M. Barbarella +3 more
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ImageforDist_D1.2_Photointepretation training course report and Photointerpretation guidelines
The report summarizes the ImageforDist photointerpretation inter-calibration course, ensuring harmonized methods, high-quality training and validation data, and consistent interpretation across the consortium through shared guidelines and best practices.Aulló-Maestro, Isabel +3 more
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