Prof. Pekka J. Toivanen Profile

Prof. Pekka J. Toivanen

at Univ of Eastern Finland

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Author

Publications (16)

Proceedings Article | 13 April 2018 Paper

Three main paradigms of simultaneous localization and mapping (SLAM) problem

Vandad Imani, Keijo Haataja, Pekka Toivanen

Proceedings Volume 10696, 106961P (2018) https://doi.org/10.1117/12.2310094

KEYWORDS: Sensors, Particle filters, Filtering (signal processing), Robotics, Environmental sensing, Cameras, Data modeling, Motion models, Digital filtering, Machine vision

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Proceedings Article | 16 March 2015 Paper

Optimized curve design for image analysis using localized geodesic distance transformations

Billy Braithwaite, Harri Niska, Irene Pöllänen, Tiia Ikonen, Keijo Haataja, Pekka Toivanen, Teemu Tolonen

Proceedings Volume 9399, 939903 (2015) https://doi.org/10.1117/12.2077826

KEYWORDS: Image analysis, Image segmentation, Digital imaging, Medical imaging, Tissues, Pattern recognition, Image processing, Raster graphics, Optimization (mathematics), Tumor growth modeling

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SPIE Journal Paper | 1 September 2010

Constant coefficients linear prediction for lossless compression of ultraspectral sounder data using a graphics processing unit

Jarno Mielikainen, Risto Honkanen, Bormin Huang, Pekka Toivanen, Chulhee Lee

JARS, Vol. 4, Issue 01, 041774, (September 2010) https://doi.org/10.1117/12.10.1117/1.3496907

KEYWORDS: Image compression, Graphics processing units, Data compression, Computer programming, Visualization, Image processing, Data storage, Matrices, Computer architecture, Clocks

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Proceedings Article | 31 August 2009 Paper

GPUs for data parallel spectral image compression

Jarno Mielikainen, Risto Honkanen, Pekka Toivanen, Bormin Huang

Proceedings Volume 7455, 74550C (2009) https://doi.org/10.1117/12.828135

KEYWORDS: Data compression, Image compression, Data storage, Computer architecture, Computer programming, Satellite communications, Satellites, Data communications, Current controlled current source, Imaging systems

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Proceedings Article | 5 September 2008 Paper

Optimal granule ordering for lossless compression of ultraspectral sounder data

Jarno Mielikainen, Pekka Toivanen

Proceedings Volume 7084, 708404 (2008) https://doi.org/10.1117/12.795260

KEYWORDS: Image compression, Data compression, Infrared radiation, Quantization, Algorithm development, Principal component analysis, Hyperspectral imaging, Electroluminescence, Computer science, Atmospheric sensing

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SPIE Journal Paper | 1 January 2005

Parallel implementation of linear prediction model for lossless compression of hyperspectral airborne visible infrared imaging spectrometer images

Jarno Mielikäinen, Pekka Toivanen

JEI, Vol. 14, Issue 01, 013010, (January 2005) https://doi.org/10.1117/12.10.1117/1.1867998

KEYWORDS: Image compression, Chromium, Spectroscopy, Hyperspectral imaging, Visible radiation, Infrared imaging, Infrared spectroscopy, Thermal modeling, Image processing, Information technology

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SPIE Journal Paper | 1 April 2003

Linear prediction in lossless compression of hyperspectral images

Jarno Mielikainen, Pekka Toivanen, Arto Kaarna

OE, Vol. 42, Issue 04, (April 2003) https://doi.org/10.1117/12.10.1117/1.1557174

KEYWORDS: Image compression, Hyperspectral imaging, Principal component analysis, Quantization, Wavelet transforms, Optical engineering, Chromium, Information technology, Spectroscopy, Algorithms

Proceedings Article | 13 March 2003 Paper

Noise reduction methods for hyperspectral images

Pekka Toivanen, Arto Kaarna, Jarno Mielikainen, Mikko Laukkanen

Proceedings Volume 4885, (2003) https://doi.org/10.1117/12.463167

KEYWORDS: Digital filtering, Denoising, Optical filters, Image filtering, Gaussian filters, Filtering (signal processing), Hyperspectral imaging, Edge detection, Data modeling, Image processing

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Proceedings Article | 13 March 2003 Paper

Pekka Keranen, Arto Kaarna, Pekka Toivanen

Proceedings Volume 4885, (2003) https://doi.org/10.1117/12.463160

KEYWORDS: Image compression, Principal component analysis, Image quality, Computer programming, Hyperspectral imaging, JPEG2000, Signal to noise ratio, Wavelet transforms, Image classification, Chromium

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Proceedings Article | 13 March 2003 Paper

Improvement to an interband version of the linear prediction approach for hyperspectral image compression

Jarno Mielikainen, Pekka Toivanen

Proceedings Volume 4885, (2003) https://doi.org/10.1117/12.463164

KEYWORDS: Image compression, Chromium, Hyperspectral imaging, Principal component analysis, Quantization, Wavelet transforms, Spectroscopy, Algorithms, Image sensors, Information technology

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Proceedings Article | 2 August 2002 Paper

Compression of multispectral AVIRIS images

Arto Kaarna, Pekka Toivanen, Pekka Keranen

Proceedings Volume 4725, (2002) https://doi.org/10.1117/12.478793

KEYWORDS: Image compression, Principal component analysis, Image quality, JPEG2000, Multispectral imaging, Wavelet transforms, Chromium, Signal to noise ratio, Computer programming, Distance measurement

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Proceedings Article | 2 August 2002 Paper

Lossless hyperspectral image compression via linear prediction

Jarno Mielikainen, Arto Kaarna, Pekka Toivanen

Proceedings Volume 4725, (2002) https://doi.org/10.1117/12.478794

KEYWORDS: Image compression, Principal component analysis, Hyperspectral imaging, Quantization, Spectroscopy, Wavelet transforms, Statistical analysis, Information technology, Multispectral imaging, Image storage

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Proceedings Article | 2 August 2002 Paper

Noise reduction in multispectral images using the self-organizing map

Pekka Toivanen, Mikko Laukkanen, Arto Kaarna, Jarno Mielikainen

Proceedings Volume 4725, (2002) https://doi.org/10.1117/12.478751

KEYWORDS: Image filtering, Digital filtering, Denoising, Gaussian filters, Multispectral imaging, Fourier transforms, Nonlinear filtering, Optical filters, Brain mapping, Neurons

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Proceedings Article | 9 March 1999 Paper

Multispectral edge detection using the two-dimensional self-organizing map

Pekka Toivanen, Jarkko Ansamaki, S. Leppajarvi, Jussi Parkkinen

Proceedings Volume 3647, (1999) https://doi.org/10.1117/12.341110

KEYWORDS: Edge detection, Sensors, RGB color model, Multispectral imaging, Neurons, Brain mapping, Image segmentation, Vector spaces, Information technology, Image processing

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Proceedings Article | 1 November 1992 Paper

Fast image compression using distance function on curved space

Pekka Toivanen

Proceedings Volume 1818, (1992) https://doi.org/10.1117/12.131500

KEYWORDS: Image compression, Image processing, Visual communications, Information technology, Visual process modeling, Wave propagation, Binary data, Algorithm development, Video, Polonium

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Proceedings Article | 1 November 1991 Paper

Two new image compression methods utilizing mathematical morphology

Ari Vepsalainen, Pekka Toivanen

Proceedings Volume 1606, (1991) https://doi.org/10.1117/12.50348

KEYWORDS: Image compression, Image processing, Visual communications, Image quality, Chemical elements, Selenium, Fractal analysis, Signal to noise ratio, Mathematical morphology, Computer programming

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Showing 5 of 16 publications

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