The wide spread of GPS devices capable of recording motion tracks has provided a huge amount of GPS track data with lots of information that can be used in various ways. Typical use of the data is to visualize the trajectory, but this is certainly only elementary use of the data. Additional processing, filtering and altering of data can significantly improve their information value. For example identification of popular places or routes, detection and removal of inaccurate parts of tracks, accenting speed or elevation progress on track, etc. The aim of the thesis is to identify and describe best solutions to process and visualize GPS track datasets. That means analysis of a standalone track, mutual comparison of several tracks or identification of characteristics of a large tracks set. The thesis will include a prototype implementation of selected described methods.