Abstract: In a described embodiment, a UAV and method for controlling a UAV are disclosed. The UAV is controlled along a predetermined flight path and the camera of UAV is controlled such that adjacent pictures of the captured pictures have an overlap in a predetermined range. In another embodiment, a device and method for detecting defects in image data of a UAV camera are disclosed. An image data management system for managing image data of a UAV and a client software application for performing surface scans with a UAV are also disclosed.

Abstract: A system is proposed for characterizing the performance of a sportsman. The system is capable of using motion data it receives describing a movement during the sport, to distinguish the type of sport, and type of stroke, which is being played. The system can furthermore detect the quality of a stroke involving an impact (e.g. an impact between an item of sports equipment and a ball), based on the observation that a good stroke will be in a “sweet spot” in which the amount of vibration caused by the impact is limited.