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V diplomski nalogi je predstavljeno programsko ogrodje kot temelj za aplikacije, ki omogočajo obogatitev resničnosti (angl. augmented reality) v realnem času. Programsko ogrodje temelji na detekciji obraza, ki zazna in sledi več obrazom naenkrat, hkrati pa poišče tudi obrazne značilke ter oceni položaj glave v prostoru glede na kamero. Delovanje ogrodja nato pokažemo na interaktivni marketinški aplikaciji, ki potrebuje ekran in kamero, tako da uporabnik lahko vidi sebe na ekranu. Aplikacija na obraz nariše določen objekt, na primer očala, brke, ipd. ter poleg obraza tudi stripovski oblaček s poljubnim tekstom. In this thesis we present software framework for real-time augmented realty applications. The framework is based on face recognition and capable of tracking multiple faces at once. It detects facial features and estimates position of the face relative to camera. We implemented a practical example that uses framework in an application used for marketing. Application requires a screen and a camera, so that the users can see themselves on the screen. Application draws some predefined object on the user's face, for example glasses or mustache, and also a comicbook-like cloud near the face with chosen text.

V magistrskem delu predstavimo področje obdelave naravnega jezika in besedilnega rudarjenja ter opišemo opravila obeh področij. Nadaljujemo z opisom generičnega programskega paketa GATE za procesiranje naravnega jezika, predvsem besedil v angleškem jeziku. V glavnem delu predstavimo lastno implementacijo razširljivega programskega paketa za procesiranje besedil v slovenskem jeziku, kjer predstavimo interno zgradbo programskega paketa, podamo podroben primer implementacije programskega dodatka in zgradbo dokumenta, ki hrani rezultate procesiranja. Dodatno opišemo pomembnejše programske dodatke, ki smo jih izdelali. Delovanje programskega paketa predstavimo na konkretnih primerih uporabe. Research field of natural language processing and text mining is presented along with some of the tasks performed in both fields of research. We continue with description of a generic natural language processing software package named GATE, primarily developed for English language. In the main part of the document we present our own implementation of extensible software package for natural language processing, primarily for Slovenian language. Internal structure of the software package is presented, along with detailed example of software plug-ins implementation and resulting document structure, which carries all the results produced by any plugin. Additionally, some important plugins are described. Concrete usage scenarios of the software package are also presented.