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 ...

Calculating the complex 3D traits of trees such as branch structure using drones/unmanned aerial vehicles (UAVs) with onboard RGB cameras is challenging because extracting skeletons from image-generated sparse point clouds remains difficult. This paper proposes a skeleton extraction algorithm for cloud generated by UAV images photogrammetry. We conducted comparison experiment flying two altitud...

Recently multi-media projectors became commercially available for using in 3D reconstruction application. They have a number of features which make them attractive for using in photogrammetric application. The main of these features are high technical characteristics (such as brightness, contrast, signal/noise ratio, resolution) and a reasonable price. And the main advantages of multimedia proj...

Airborne digital sensors are about to widen the choices in photogrammetry. The transition from analytical to digital photogrammetry is well advanced. Recent technology developments provide new solutions for high-resolution image acquisition for photogrammetric applications. These sensors are based on CCD-matrices as well as CCD-line sensors and fulfill both. The emphasis is placed on general pr...

The road network is an essential economic factor for the German industry. Until now, the whole horizontal and vertical alignment parameters are not known. To determine these parameters the Technische Universität Dresden has implemented a measurement system which is realised in a mobile mapping vehicle. The car includes the following sensors: Position and orientation system Applanix POS LV 420, ...

This paper describes a robust photogrammetric system for 3-D surface reconstruction. We use a linear camera calibration model with 14 camera parameters, which can be optimized using the leastsquares solution. To address the non-linear lens distortion, a localized calibration concept is presented whereby different image locations have different sets of calibration parameters. A new subpixel targ...