Ales Fexa

About me

I am a software engineer from Prague with a special passion for computer vision and mathematics.

I spend my work days writing various .NET applications. In my spare time, I develop Sefexa which is a free tool for semi-automatic image segmentation.

My CV and publications are on this site, detailed information about my skills and career can be found in LinkedIn.

CV

Education:

November 2004 – February 2008:

Institut für Algorithmen und Kognitive Systeme, Universität Karlsruhe (TH), Germany

"Doktor der Ingenieurwissenschaften" (PhD) in Computer Science

October 1999 – July 2002, January 2004 – September 2004:

Faculty of Mathematics and Physics, Charles University in Prague

"Magistr" (Master of Science) in Computer Science

January 2003 – December 2003:

Kansas State University, Manhattan, Kansas, USA

Master of Science in Computer Science, GPA 4.0/4.0

Languages:

German C2

English C2

Czech (native language)

Work experience:

Since September 2016:

Contracting Software Engineer (.NET/Python), Prague, Czech Republic

Design and implementation of natural language processing algorithms for text data extraction.

March 2012 - July 2016:

Software Engineer (.NET) at Barclays, Prague, Czech Republic

Development of front-end (Silverlight) and back-end (C# and MsSql) applications for traders.

March 2008 - February 2012:

Software Engineer (.NET) at T-SOFT, a.s., Prague, Czech Republic

Web applications, real time visualization of infrared video, size estimation of a cloud created by an explosion.

November 2004 – February 2008:

Graduate Research Assistant at Institut für Algorithmen und Kognitive Systeme, Universität Karlsruhe (TH), Germany

Research and implementation of computer vision algorithms, knowledge representations, and natural language generation (Java).

March 2004 – July 2004:

Software Developer (C/C++) at Neovision s.r.o., Prague

Design of algorithms for automatic translation of Braille texts.

July 2002 – December 2002:

Undergraduate Research Assistant at Fraunhofer Institut Medienkommunikation, Schloss Birlinghoven, Germany

Research and implementation of algorithms for image segmentation (C/C++).

Programming skills:

C# ( years)

Python (2 years)

Silverlight (1.5 years)

ASP.NET (3 years)

Java (3 years)

Prolog (0.5 year)

MsSql (2 years)

Oracle (2 years)

Hobbies:

Computer vision, mathematics, traveling

Publications

2008

A. Fexa: Erzeugung mehrsprachlicher Beschreibungen von Verkehrsbildfolgen. Dissertation, Fakultät für Informatik der Universität Karlsruhe (TH), August 2008; Dissertationen zur Künstlichen Intelligenz (DISKI) 317; Akademische Verlagsgesellschaft AKA GmbH, Berlin, 2008.

2007

A. Fexa and H.-H. Nagel: Integrating Behavior-based Prediction for Tracking Vehicles in Traffic Videos. In: Proc. of the International Conference on Computer Vision Systems (ICVS2007), 21-24 März 2007, Bielefeld, Germany. Full Article.

2006

A. Fexa, K. Uchimoto, H. Isahara, J. Kawai, and H.-H. Nagel: On 'Speaking-Cameras'. In: Ch. Freksa, M. Kohlhase, and K. Schill (Eds.): Proc. of the 29th Annual German Conference on Articial Intelligence (KI 2006), Poster Abstracts, June 2006, Bremen, pp. 5-7. Full Article.

M. Kolesnik, A. Fexa: How robust is the SVM wound segmentation? In: Proc. of the 7th Nordic Signal Processing Symposium (NORSIG'2006), June 7-9, 2006, Reykjavik, Iceland, IEEE ISBN 1-4244-0413-4/06, pp. 50-53. Full Article (©Springer-Verlag).

A. Fexa, H.-H. Nagel, A. Ottlik, and J. Siecke: Behavior-based 3D-Tracking During Unmodelled Occlusion. In: M. Vincze and L. Paletta (Eds.): Proc. of the 2nd International Cognitive Vision Workshop (in conjunction with ECCV-2006), 13 May 2006, Graz, Austria, pp. 1-8 (on the Workshop CD).

2005

M. Kolesnik, A. Fexa: Multi-dimensional Color Histograms for Segmentation of Wounds in Images. In: Proc. of the International Conference on Image Analysis and Recognition (ICIAR'2005), Toronto, Canada, September 28-30, 2005, Lecture Notes in Computer Science, Volume 3656/2005, pp. 1014-1022. Full Article (©Springer-Verlag).

A. Fexa: Dependence of Conceptual Representations for Temporal Developments in Videosequences on a Target Language. In: D. Paulus and D. Droege (Eds.): Proc. of the KI 2005 Workshop 7 'Mixed-reality as a Challenge to Image Understanding and Articial Intelligence', 11 September 2005, Koblenz; Fachberichte Informatik, Universität Koblenz-Landau, Institut für Informatik, Universitätsstr. 1, 56070 Koblenz, pp. 47-54.

2004

M. Kolesnik, A. Fexa: Segmentation of Wounds in the Combined Color-Texture Feature Space. In: Proc. of SPIE: Medical Imaging 2004, San-Diego, USA, 16-19 February 2004, Volume 5370, pp. 549-556. Full Article (©Springer-Verlag).