Browsing by Subject "direct georeferencing"

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Access status: Open Access ,
Quo vadis, fotogrametrio?
(Wydawnictwa AGH, 2006) Bujakiewicz, Aleksandra
The article presents a short discussion referring to selected directions photogrammetry is following. Many new approaches in obtaining and processing digital images, their mutual combination and direct georeferencing create new possibilities in their application. Making photogrammetric measurements automatic has been included into basic studies for many years. However, despite long-lasting efforts the level expected at the beginning, when photogrammetric measurements has not been achieved. Our expectation for the future are photogrammetric measurements made in real time and satisfactory results obtained on request.
Access status: Open Access ,
Use of integrated GPS and INS systems in aerial photogrammetry
(2011) Poręba, Martyna
A synthetic overview of the present state of knowledge regarding the use of GPS and INS systems in aerial photogrammetry is presented. Although, the inertial navigation can calculate the position of the aircraft without any help from outside world, a large number of error are introduced. Hence a GPS is used to aid the INS, using a Kalman filter which helps in estimating the errors in the INS and thus updating position to improved accuracy. The deficiencies inherent in both systems as well as the reasons for their integration are considered. Since the use of a GPS system during flight still requires the creation of a net of ground control points and the planning of blocks with sufficient overlap between images, GPS/INS system integration has become a topic of keen interest. For this purpose, the basics of GPS/INS integration and the advantages and disadvantages of this solution are explained. The summary presents conclusions about directions for further development of integrated systems and a brief discussion of the current state of studies on direct georeferencing published in international scientific literature.