Automated Orientation of Aerial Images
نویسنده
چکیده
Methods for automated orientation of aerial images are presented. They are based on the use of templates, which are derived from existing databases, and area-based matching. The characteristics of available database information and the accuracy requirements for map compilation and orthoimage production are discussed on the example of Denmark. Details on the developed methods for interior and exterior orientation are described. Practical examples like the measurement of réseau images, updating of topographic databases and renewal of orthoimages are used to prove the feasibility of the developed methods.
منابع مشابه
Automated georeferencing of aerial images
A method for automated georeferencing of aerial images by means of existing orthoimages and height models is presented. Results with test material of the OEEPE are discussed. The automated process is supported by the use of various thresholds in order to eliminate blunders. Experiences with the settings of these thresholds are discussed. After automatic elimination of some blunders in the autom...
متن کاملMATLAB and photogrammetric applications
Many automated processes in digital photogrammetry such as relative orientation of a stereopair of aerial images or a derivation of a digital terrain model (DTM) are based on image matching. Several approaches to image matching have been developed. In this paper, attention is paid to area based matching. Using of MATLAB in procedures of finding parameters of exterior orientation of an aerial im...
متن کاملReconstruction of Orientation and Geometry from Large Unordered Image Datasets for Low Cost Applications
Reconstruction of camera orientations and structure from images is one of the basic tasks in photogrammetry and computer vision. A fully automated solution of this task from scratch in terrestrial applications is still pending in case of large unordered image datasets especially for close-range and low-cost applications. Current solutions require high computational efforts for image networks wi...
متن کاملAutomated Shadow Compensation in Color Aerial Images
In urban aerial images, shadows cast by culture features due to solar orientation are usually homogenous and among the darkest regions in images and they make the feature under them unrevealed. This paper presents automatic procedures for shadow detection and radiometric restoration of features under cast shadows in color aerial images for solving problems caused by cast shadows in digital imag...
متن کاملThe Use of Mobile Laser Scanning Data and Unmanned Aerial Vehicle Images for 3d Model Reconstruction
The increasing availability in multiple data sources acquired by different sensor platforms has provided the great advantages for desired result achievement. This paper proposes the use of both mobile laser scanning (MLS) data and Unmanned Aerial Vehicle (UAV) images for 3D model reconstruction. Due to no available exterior orientation parameters for UAV images, the first task is to georeferenc...
متن کامل