The geometric performance of large format multi-head photogrammetric sensors, Intergraph DMC and Vexcel UltraCamD, was evaluated theoretically and empirically. Theoretical point determination accuracy coefficients were derived by simulation; point determination accuracy estimates are obtained by multiplying these coefficients by measurement accuracy and scale number. Multihead images have speci...

Last decade saw a considerable growth in number of methods to create 3D models for buildings. Some companies have developed their own online maps systems. One of the most well-known of them is Google Maps. The maps are infrequently updated because the process is costly and labor-consuming, and, as a rule, the update is not necessary. The process of 3D model creation for a separate building usin...

Digital aerial cameras are ready to become the predominant sensor for photogrammetric image acquisition. One among a few others is the ULTRACAMD large format digital aerial camera of Vexcel Imaging, which was introduced in May 2003. Besides the optical and electrical properties of an aerial camera system, the environment for tasks like the mission planning, aircraft guidance, sensor management ...

The evaluation of the geometric performance of the novel digital large format camera UltraCamD is the topic of this presentation. We describe the concept of the geometric calibration by means of a bundle adjustment. Based on the specific design of the camera additional parameters were defined and the bundle adjustment software BINGO was modified in order to handle these parameters. The entire c...

this study is a contribution to assess the high resolution digital aerial imagery for semi-automatic analysis of tree species identification. to maximize the benefit of such data, the object-based classification was conducted in a mixed forest plantation. two subsets of an ultracam d image were geometrically corrected using aero-triangulation method. some appropriate transformations were perfor...

Since a few years, digital frame cameras are being used for the recurrent conventional photogrammetric mapping tasks within Flanders (Belgium). As a result, area-wide, but mixed-sensor-type (Ultracam, DMC, ...) time series of digital airborne imagery are emerging. Since only recently, a trend can be observed that this imagery is increasingly used for environmental mapping tasks, such as agricul...

Dealing with digital airborne photogrammetric data acquisition today’s main focus is quite often exclusively laid on the large format digital sensor systems like ADS40 (Leica Geosystems), DMC (ZI-Imaging) and UltracamD (Vexcel Austria) which are already used in practice now. Their advantages are well known, nonetheless, for smaller area projects the use of such large format systems might be ine...