In international and highly-multilingual environments, it often happens, that a talk, a document, or any other input, needs to be translated into a massive number of other languages. However, it is not always an option to have a distinct system for each possible language pair due to the fact that training and operating such kind of translation systems is computationally demanding. Combining multiple target languages into one translation model usually causes a de- crease in quality of output for each its translation direction. In this thesis, we experiment with combinations of target languages to see, if a specific grouping of them can lead to better results than just randomly selecting target languages. We build upon a recent research on training a multilingual Transformer model without any change to its architecture: adding a target language tag to the source sentence. We trained a large number of bilingual and multilingual Transformer models and evaluated them on multiple test sets from different domains. We found that in most of the cases grouping related target languages into one model caused a better performance compared to models with randomly selected languages. However, we also found that a domain of the test set, as well as domains of data sampled into the training set, usu- ally have a more...

This thesis proposes a system for extraction of vehicle trajectories from aerial video data for traffic analysis. The system is designed to analyse video sequence of a single traffic scene captured by an action camera mounted on an arbitrary UAV flying at the altitudes of approximately 150 m. Each video frame is geo-registered using visual correspondence of extracted ORB features. For the detection of vehicles, MB-LBP classifier cascade is deployed, with additional step of pre-filtering of detection candidates based on movement and scene context. Multi-object tracking is achieved by Bayesian bootstrap filter with an aid of the detection algorithm. The performance of the system was evaluated on three extensively annotated datasets. The results show that on the average, 92% of all extracted trajectories are corresponding to the reality. The system is already being used in the research to aid the process of design and analysis of road infrastructures.

SLOVENE NATIONAL THEATRE IN LJUBLJANA Author Report Of The Diploma Work Author: Bc. Petr Hýl Supervisor: doc. ing. arch. Zdeněk Makovský