Dissertations and theses

Ph.D. Theses:

• Processing and compression of raster map images, Pavel Kopylov, 2004.
(pdf)
• Efficient algorithms for vectorization and polygonal approximation, Alexander Kolesnikov, 2003. (pdf)
• Context-based compression of binary images, Eugene Ageenko, 2000. (pdf)

Ph.Lic. Theses:

• Document image compression, Eugene Ageenko, 1999.
• Context modeling automata for text compression, Timo Hatakka, 1998.

M.Sc. Theses:

• Efficient color quantization by hierarchical clustering algorithms, Ville Hautamäki, 2005. (pdf)
• Using location information in web documents, Ilkka Vänskä, 2004.
• Object tracking in image sequences using region growing, Tero Koistinen, 2003. (pdf)
• Mobile location-based applications, Teemu Hakolahti, 2003. (pdf)
• Wireless imaging in mobile applications, Sergey Vasiliev, 2002.
• Compression of raster maps, Sami Gröhn, 2002. (pdf)
• Representation of digital maps, Viktor Veis, 2001. (pdf)
• Dictionary-based compression of map images, Alexandr Akimov, 2001. (pdf)
• Utilization of vector maps in location-based applications, Seppo Nevalainen, 2001.
(pdf)
• Lossless compression of gray-scale images, Kaisa Komulainen, 2001. (pdf)

Recent scientific publications

• A. Kolesnikov and P. Fränti, "Data reduction of large vector graphics", Pattern Recognition, 38 (3), 381-394, March, 2005.

• P. Kopylov and P. Fränti, "Compression of map images by multi-layer context tree modeling", IEEE Transactions on Image Processing, 14 (1), 1-11, January 2005.

• P. Fränti, E. Ageenko, P. Kopylov, S. Gröhn and F. Berger, "Compression of map images for real-time applications", Image and Vision Computing, 22 (13), 1105-1115, November 2004.

• A. Kolesnikov and P. Fränti, "Reduced-search dynamic programming for approximation of polygonal curves", Pattern Recognition Letters, 24 (14), 2243-2254, October 2003.

• A. Kolesnikov and P. Fränti, "Fast algorithm for multiple-objects min-e problem", IEEE Int. Conf. on Image Processing (ICIP'03), Barcelona, Spain, vol. 1, 221-224, September 2003.

• A. Kolesnikov and P. Fränti, "Polygonal approximation of closed contours", Scandinavian Conf. on Image Analysis (SCIA'03), Göteborg, Sweden, LNCS vol. 2749, 778-785, June 2003.

• M. Xu and P. Fränti, "Context clustering in lossless compression of gray-scale image", Scandinavian Conf. on Image Analysis (SCIA'03), Göteborg, Sweden, LNCS vol. 2749, 328-334, June 2003.

• P. Kopylov, and P. Fränti, "Optimal layer ordering in the compression of map images", IEEE Data Compression Conference (DCC'03), Snowbird, Utah, USA, 323-332, April 2003.

• P. Fränti and V. Hautamäki, "Compression of aerial images for reduced-color devices", SPIE Conf. on Image and Video Communications and Processing,Santa Clara, USA, SPIE Vol. 5022, Part II, 651-662, January 2003.

• E.I. Ageenko, M. Forsell and P. Fränti, "Context-based compression of binary images in parallel", Software Practice and Experience, 32 (13), 1223-1237, November 2002.

• P. Fränti, P. Kopylov and V. Veis, "Dynamic use of map images in mobile environment", IEEE Int. Conf. on Image Processing (ICIP'02), Rochester, New York, USA, vol. 2, 685-688, September 2002.

• A. Akimov, P. Kopylov and P. Fränti, "Semi-adaptive dictionary based compression of map images", GraphiCon'2002, Nizhny Novgorod, Russia, 218-224, September 2002.

• A. Kolesnikov and P. Fränti, "A fast near-optimal algorithm for approximation of polygonal curves", Int. Conf. on Pattern Recognition (ICPR'02), Québec, Canada, vol. 4, 335-338, August 2002.

• P. Fränti, E. Ageenko, P. Kopylov, S. Gröhn and F. Berger, "Map image compression for real-time applications", Spatial Data Handling 2002 Symposium (SDH'02), Ottawa, Canada, July 2002.

• P. Fränti, P.Kopylov and E. Ageenko, "Evaluation of compression methods for digital map images", IASTED Int. Conf. on Automation, Control and Information Technology (ACIT 2002), Novosibirsk, Russia, 401-405, June 2002.

• A. Kolesnikov and P. Fränti, "A fast near-optimal min-# approximation of digitized curves", IASTED Int. Conf. on Automation, Control and Information Technology (ACIT 2002), 418-422, Novosibirsk, Russia, June 2002.

• P. Fränti, E. Ageenko, P. Kopylov and S. Gröhn, "Compressing multi-component digital maps using JBIG2", IEEE Int. Conf. on Acoustics, Speech, and Signal Processing, (ICASSP'02), Orlando, Florida, 2677-2680, vol. 3, May, 2002.

• G. Hariharan, P. Fränti and S. Mehta, "Data Mining for Personal Navigation", Data Mining and Knowledge Discovery: Theory, Tools, and Technology IV, Orlando, Florida, vol. 4730, 355-365, April, 2002.

• P. Kopylov and P. Fränti, "Context tree compression of multi-component map images", IEEE Data Compression Conference (DCC'02), Snowbirh, Utah, 212-221, April 2002.

• E.I. Ageenko, P. Kopylov and P. Fränti, "On the size and shape of multi-level context templates for compression of map images", IEEE Int. Conf. on Image Processing (ICIP'01), Thessaloniki, Greece, vol.3, 458-461, October 2001.

• P. Fränti, A. Mednonogov, V. Kyrki and H. Kälviäinen, "Content-based matching of line-drawing images using the Hough transform", Int. Journal on Document Analysis and Recognition, 3 (3), 117-124, 2000.

• E.I. Ageenko and P. Fränti, "Context-based filtering of document images", Pattern Recognition Letters, 21 (6-7), 483-491, 2000.

• E.I. Ageenko and P. Fränti, "Compression of large binary images in digital spatial libraries", Computers & Graphics, 24 (1), 91-98, February 2000.