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ABSTRACT Generational renewal is increasingly recognised as a crucial challenge for the future of agriculture. Recent literature has placed growing emphasis on the importance of farmer identity as a key dimension shaping young people's interest in agriculture, their approach to farm management and their longāterm commitment.
Federica Consentino +3 more
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Problems in Direct-Georeferencing by INS/DGPS in the Airborne Environment
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Impact of vertical deflection on direct georeferencing of airborne images
This paper is aimed at analysing the influence of the vertical deflection (DOV) in direct georeferencing (DG) of image data from an aerial digital frame camera. Without considering the value of the DOV, a systematic error is involved in the determination
Giuseppina Prezioso
exaly +4 more sources
Error model of direct georeferencing procedure of terrestrial laser scanning
Processing of raw point cloud data obtained as a result of terrestrial laser scanning (TLS) sometimes involves georeferencing, i.e. transformation of point cloud data to an external coordinate system.
Marko Pejic, Branko Bozic
exaly +2 more sources
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Theory and reality of direct georeferencing in national coordinates
ISPRS Journal of Photogrammetry and Remote Sensing, 2008This paper focuses on the transformation of the sensor's exterior orientation parameters obtained by direct georeferencing (DG) to national reference frames and their subsequent projection for mapping purposes. The required steps are explained and the emphasis is put on the minimization of distortions arising from the curvature of the earth and the ...
Skaloud, Jan
exaly +3 more sources
GNSS/INS applications are being developed, especially for direct georeferencing in airborne photogrammetry. Achieving accurately georeferenced products from the integration of GNSS and INS requires removing systematic errors in the mobile mapping systems.
Arash Jouybari +2 more
exaly +2 more sources
Direct Georeferencing of Ultrahigh-Resolution UAV Imagery
IEEE Transactions on Geoscience and Remote Sensing, 2014Micro-unmanned aerial vehicles often collect a large amount of images when mapping an area at an ultrahigh resolution. A direct georeferencing technique potentially eliminates the need for ground control points. In this paper, we developed a camera-global positioning system (GPS) module to allow the synchronization of camera exposure with the airframe ...
Darren Turner +2 more
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Direct georeferencing of airborne pushbroom images
Journal of the Chinese Institute of Engineers, Transactions of the Chinese Institute of Engineers,Series A/Chung-kuo Kung Ch'eng Hsuch K'an, 2015Direct georeferencing (DG) for orthoimage production based on collinearity equations has emerging as a standard photogrammetric operation. In this paper, the basic idea of DG is realized and refined with 19 self-calibration parameters for rectifying airborne pushbroom hyperspectral images collected using the intelligent spectral imaging system (ISIS ...
Ching-Kuo Yeh, Victor J.D. Tsai
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Approximate direct georeferencing in national coordinates
ISPRS Journal of Photogrammetry and Remote Sensing, 2006Abstract Direct georeferencing has gained an increasing importance in photogrammetry and remote sensing. Thereby, the parameters of exterior orientation (EO) of an image sensor are determined by GPS/INS, yielding results in a global geocentric reference frame.
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A Comparison of Direct Georeferencing and GPS-supported AT
2006 IEEE International Symposium on Geoscience and Remote Sensing, 2006One of the major tasks in the evaluation process of photogrammetry is the determination of the exterior orientation. Direct Georeferencing (DG) and GPS-supported AT provide new methods for this task in addition to conventional AT. A test flight was performed with two methods DG and GPS supported AT.
D. Guo, L. Wu, Q. Li, J. Wang, X. Zheng
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