Image compression by selecting control points using distance function on curved space. - Pekka J. Toivanen (Pattern Recognit. Lett., 1993)

New geodosic distance transforms for gray-scale images. - Pekka J. Toivanen (Pattern Recognit. Lett., 1996)

Erratum to "New geodesic distance transforms for gray-scale images" [Pattern Recognition Letters 17 (1996) 437-450]. - Pekka J. Toivanen (Pattern Recognit. Lett., 1996)

Image compression utilizing the DTOCS, topological raster patterns and delaunay triangulation. - Pekka J. Toivanen (EUSIPCO, 1998)

Sequential local transform algorithms for gray-level distance transforms. - Pekka J. Toivanen; Hesham Elmongui (EUSIPCO, 1998)

Image compression using the distance transform on curved space (DTOCS) and Delaunay triangulation. - Pekka J. Toivanen; Ari M. Vepsäläinen; Jussi Parkkinen (Pattern Recognit. Lett., 1999)

New multispectral edge detection methods based on roughness and differential Prewitt. - Jarkko Ansamäki; Pekka J. Toivanen; Jussi Parkkinen (EUSIPCO, 2000)

Image compression using derivative information with Distance Transforms. - Leena Ikonen; Ville Kyrki; Pekka J. Toivanen; Heikki Kälviäinen (EUSIPCO, 2000)

Multispectral Image Color Encoding. - Pavel Zemcík; Jan Vorácek; Michael Frydrych; Heikki Kälviäinen; Pekka J. Toivanen (ICPR, 2000)

Positioning of Flexible Boom Structure Using Neural Networks. - Jarno Mielikäinen; Ilkka Koskinen; Heikki Handroos; Pekka J. Toivanen; Heikki Kälviäinen (CAIP, 2001)

Chromaticity Difference from Surfaces Defined from MacAdam Ellipses. - Arto Kaarna; Pekka J. Toivanen; Toni Kuparinen (CGIV, 2002)

Improved vector quantization for lossless compression of AVIRIS images. - Jarno Mielikäinen; Pekka J. Toivanen (EUSIPCO, 2002)

Shortest Route on Height Map Using Gray-Level Distance Transforms. - Leena Ikonen; Pekka J. Toivanen (DGCI, 2003)

Digital watermarking of spectral images in PCA/wavelet-transform domain. - Arto Kaarna; Pekka J. Toivanen (IGARSS, 2003)

Watermarking Spectral Images Through the PCA Transform. - Arto Kaarna; Pekka J. Toivanen; Kimmo Mikkonen (PICS, 2003)

Shortest Route on Gray-Level Map Using Distance Transform on Curved Space. - Leena Ikonen; Pekka J. Toivanen; Janne Tuominen (SCIA, 2003)

Enhanced Model for Chromaticity Differences. - Toni Kuparinen; Arto Kaarna; Pekka J. Toivanen (SCIA, 2003)

Soft morphological Filtering of Spectral Images. - Sami Lakaniemi; Pekka J. Toivanen; Ville Kyrki (SCIA, 2003)

Implementation of Linear Prediction Models for Lossless Compression of Hyperspectral Images in Novel Parallel Environments. - Jarno Mielikäinen; Pekka J. Toivanen (SCIA, 2003)

Edge detection in multispectral images using the self-organizing map. - Pekka J. Toivanen; Jarkko Ansamäki; Jussi Parkkinen; Jarno Mielikäinen (Pattern Recognit. Lett., 2003)

Clustered DPCM for the lossless compression of hyperspectral images. - Jarno Mielikäinen; Pekka J. Toivanen (IEEE Trans. Geosci. Remote. Sens., 2003)

Color Differences in a Spectral Space. - Diana Kalenova; Pekka J. Toivanen; Vladimir Botchko (CGIV, 2004)

New Linear Prediction Model for Lossless Compression of Hyperspectral Images. - Olga Kubasova; Pekka J. Toivanen (CGIV, 2004)

Computational Model for Chromaticity Differences. - Toni Kuparinen; Arto Kaarna; Pekka J. Toivanen (CGIV, 2004)

Estimation of Just-Noticeable Differences in Multispectral Color Space. - Irina Mironova; Pekka J. Toivanen (CGIV, 2004)

Multidimensional median filtering of spectral images. - Pekka J. Toivanen; Jarkko Vartiainen; Arto Kaarna (CGIV, 2004)

Spectral Image Distortion Map. - Diana Kalenova; Pekka J. Toivanen; Vladimir Botchko (ICPR (1), 2004)

Lossless Compression Methods for Hyperspectral Images. - Olga Kubasova; Pekka J. Toivanen (ICPR (2), 2004)

Distance and Nearest Neighbor Transforms of Gray-Level Surfaces Using Priority Pixel Queue Algorithm. - Leena Ikonen; Pekka J. Toivanen (ACIVS, 2005)

Preferential Spectral Image Quality Model. - Diana Kalenova; Pekka J. Toivanen; Vladimir Bochko (SCIA, 2005)

Fractal Dimension Analysis and Statistical Processing of Paper Surface Images Towards Surface Roughness Measurement. - Toni Kuparinen; Oleg Rodionov; Pekka J. Toivanen; Jarno Mielikäinen; Vladimir Bochko; Ate Korkalainen; Juha Parviainen; Erik Vartiainen (SCIA, 2005)

Shortest routes on varying height surfaces using gray-level distance transforms. - Leena Ikonen; Pekka J. Toivanen (Image Vis. Comput., 2005)

Parallel implementation of linear prediction model for lossless compression of hyperspectral airborne visible infrared imaging spectrometer images. - Jarno Mielikäinen; Pekka J. Toivanen (J. Electronic Imaging, 2005)

Correlation-based band-ordering heuristic for lossless compression of hyperspectral sounder data. - Pekka J. Toivanen; Olga Kubasova; Jarno Mielikäinen (IEEE Geosci. Remote. Sens. Lett., 2005)

Lossless Hyperspectral Image Compression via Linear Prediction. - Jarno Mielikäinen; Pekka J. Toivanen (Hyperspectral Data Compression, 2006)

3D Similarity index for Evaluating Quality of Lossy Compressed Spectral Images. - Dobromir Dochev; Vladimir Bochko; Diana Kalenova; Pekka J. Toivanen (CGIV, 2006)

A Novel Technique of Spectral Image Quality Assessment Based on Structural Similarity Measure. - Diana Kalenova; Dobromir Dochev; Vladimir Bochko; Pekka J. Toivanen; Arto Kaarna (CGIV, 2006)

Distance Transforms on Anisotropic Surfaces for Surface Roughness Measurement. - Leena Ikonen; Toni Kuparinen; Eduardo Villanueva; Pekka J. Toivanen (DGCI, 2006)

On Surface Topography Reconstruction from Gradient Fields. - Toni Kuparinen; Ville Kyrki; Jarno Mielikäinen; Pekka J. Toivanen (ICIP (2), 2007)

Paper Surface Topography Using Three-light Photometric Stereo. - Toni Kuparinen; Ville Kyrki; Jarno Mielikäinen; Pekka J. Toivanen (MVA, 2007)

Distance and nearest neighbor transforms on gray-level surfaces. - Leena Ikonen; Pekka J. Toivanen (Pattern Recognit. Lett., 2007)

Measurement Noise in Photometric Stereo Based Surface Reconstruction. - Toni Kuparinen; Ville Kyrki; Pekka J. Toivanen (VISAPP (2), 2008)

Lossless Compression of Hyperspectral Images Using a Quantized Index to Lookup Tables. - Jarno Mielikäinen; Pekka J. Toivanen (IEEE Geosci. Remote. Sens. Lett., 2008)

Roller: Adding Target-Oriented Behavior to a Wheeled Mobile Agent. - Juha Holopainen; Mauno Rönkkö; Pekka J. Toivanen (CSIE (5), 2009)

Designing and Implementing an Embedded Linux for Limited Resource Devices. - Hannu Lyytinen; Keijo Haataja; Pekka J. Toivanen (ICN, 2009)

Visual data flow languages with action systems. - Maija Marttila-Kontio; Mauno Rönkkö; Pekka J. Toivanen (IMCSIT, 2009)

Challenges in Computational Histopathology: The Feasibility of FTIR Spectroscopy in Clustering. - Jouni Pääkkönen; Niina Päivinen; Pekka J. Toivanen (SITIS, 2009)

Lossless Compression of Ultraspectral Sounder Data Using Linear Prediction With Constant Coefficients. - Jarno Mielikäinen; Pekka J. Toivanen (IEEE Geosci. Remote. Sens. Lett., 2009)

New Efficient RF Fingerprint-Based Security Solution for Bluetooth Secure Simple Pairing. - Sanna Pasanen; Keijo Haataja; Niina Päivinen; Pekka J. Toivanen (HICSS, 2010)

Two practical man-in-the-middle attacks on Bluetooth secure simple pairing and countermeasures. - Keijo Haataja; Pekka J. Toivanen (IEEE Trans. Wirel. Commun., 2010)

Towards particle system based stress visualization. - Mauno Rönkkö; Pekka J. Toivanen (Simul. Model. Pract. Theory, 2011)

Security Threats in ZigBee-Enabled Systems: Vulnerability Evaluation, Practical Experiments, Countermeasures, and Lessons Learned. - Niko Vidgren; Keijo Haataja; Jose Luis Patino-Andres; Juan Jose Ramirez-Sanchis; Pekka J. Toivanen (HICSS, 2013)

A novel recommendation system approach utilizing social network profiles. - Timo Kahara; Keijo Haataja; Pekka J. Toivanen (HIS, 2013)

3D imaging of human brain in the diagnostics of insomnia and depression: A comparative analysis, a novel insomnia/depression diagnostics approach, and lessons learned. - Tiia Ikonen; Keijo Haataja; Pekka J. Toivanen (ISDA, 2013)

Towards more accurate and intelligent recommendation systems. - Timo Kahara; Keijo Haataja; Pekka J. Toivanen (ISDA, 2013)

Wireless indoor tracking of livestock for behavioral analysis. - Mikko Asikainen; Keijo Haataja; Pekka J. Toivanen (IWCMC, 2013)

Bluetooth Security Attacks - Comparative Analysis, Attacks, and Countermeasures. - Keijo Haataja; Konstantin Hyppönen; Sanna Pasanen; Pekka J. Toivanen (Springer, 2013)

Computer-assisted image analysis of histopathological breast cancer images using step-DTOCS. - Tiia Ikonen; Harri Niska; Billy Braithwaite; Irene Pöllänen; Keijo Haataja; Pekka J. Toivanen; Teemu Tolonen; Jorma Isola (HIS, 2014)

Three practical attacks against ZigBee security: Attack scenario definitions, practical experiments, countermeasures, and lessons learned. - Olayemi Olawumi; Keijo Haataja; Mikko Asikainen; Niko Vidgren; Pekka J. Toivanen (HIS, 2014)

Computer-aided breast cancer histopathological diagnosis: Comparative analysis of three DTOCS-based features: SW-DTOCS, SW-WDTOCS and SW-3-4-DTOCS. - Irene Pöllänen; Billy Braithwaite; Tiia Ikonen; Harri Niska; Keijo Haataja; Pekka J. Toivanen; Teemu Tolonen (IPTA, 2014)

Design of a Novel Adaptive Indoor Air Quality Control for Co-learning Smart House. - Markus Johansson; Keijo Haataja; Mikko Kolehmainen; Pekka J. Toivanen (S-CUBE, 2014)

Mobile Health Applications: A Comparative Analysis and a Novel Mobile Health Platform. - Antti Väänänen; Keijo Haataja; Mikko Asikainen; Iiro Jantunen; Pekka J. Toivanen (S-CUBE, 2014)

Adaptive Methods for Managing Heterogeneity in Smart Spaces. - Mikko Asikainen; Lauri Väätäinen; Aleksi Suomalainen; Miika Toivanen; Keijo Haataja; Pekka J. Toivanen (IoT 360 (2), 2015)

Optimized curve design for image analysis using localized geodesic distance transformations. - Billy Braithwaite; Harri Niska; Irene Pöllänen; Tiia Ikonen; Keijo Haataja; Pekka J. Toivanen; Teemu Tolonen (Image Processing: Algorithms and Systems, 2015)

Morphological extraction of cancerous nucleus in the diagnostics of breast cancer. - Tiia Ikonen; Irene Pöllänen; Billy Braithwaite; Keijo Haataja; Pekka J. Toivanen; Teemu Tolonen; Jorma Isola (ISDA, 2015)

Current analysis approaches and performance needs for whole slide image processing in breast cancer diagnostics. - Irene Pöllänen; Billy Braithwaite; Keijo Haataja; Tiia Ikonen; Pekka J. Toivanen (SAMOS, 2015)

Systematic Literature Review on Empirical Results and Practical Implementations of Healthcare Recommender Systems: Lessons Learned and a Novel Proposal. - Adekunle Oluseyi Afolabi; Pekka J. Toivanen; Keijo Haataja; Juha Mykkänen (Int. J. Heal. Inf. Syst. Informatics, 2015)

Nuclei Malignancy Analysis Based on an Adaptive Bottom-Hat Filter. - Tiia Ikonen; Keijo Haataja; Pekka J. Toivanen; Teemu Tolonen; Jorma Isola (ISDA, 2016)

Three main paradigms of simultaneous localization and mapping (SLAM) problem. - Vandad Imani; Keijo Haataja; Pekka J. Toivanen (ICMV, 2017)

Integration of Recommendation Systems Into Connected Health for Effective Management of Chronic Diseases. - Adekunle Oluseyi Afolabi; Pekka J. Toivanen (IEEE Access, 2019)

Optimal price-based control of heterogeneous thermostatically controlled loads under uncertainty using LSTM networks and genetic algorithms. - Taha Abdelhalim Nakabi; Pekka J. Toivanen (F1000Research, 2019)

Improving the design of a recommendation system using evaluation criteria and metrics as a guide. - Adekunle Oluseyi Afolabi; Pekka J. Toivanen (J. Syst. Inf. Technol., 2019)

A Novel Generalized Form of Cure Rate Model for an Infectious Disease with Co-infection. - Oluwafemi Samson Balogun; Sunday Adewale Olaleye; Xiao Zhi Gao 001; Pekka J. Toivanen (ISDA, 2020)

Survey to healthcare professionals on the practicality of AI services for healthcare. - Antti Väänänen; Keijo Haataja; Pekka J. Toivanen (F1000Research, 2020)

Harmonization and Categorization of Metrics and Criteria for Evaluation of Recommender Systems in Healthcare From Dual Perspectives. - Adekunle Oluseyi Afolabi; Pekka J. Toivanen (Int. J. E Health Medical Commun., 2020)

State-of-the-Art Techniques in Artificial Intelligence for Continual Learning: A Review. - Bukola Salami; Keijo Haataja; Pekka J. Toivanen (FedCSIS (Position Papers), 2021)

Text Recognition of Cardboard Pharmaceutical Packages by Utilizing Machine Vision. - Jarmo Koponen; Keijo Haataja; Pekka J. Toivanen (Image Processing: Algorithms and Systems, 2021)

Investigating Drug Peddling in Nigeria Using a Machine Learning Approach. - Oluwafemi Samson Balogun; Sunday Adewale Olaleye; Mazhar Mohsin; Keijo Haataja; Xiao Zhi Gao 001; Pekka J. Toivanen (ISDA, 2021)

An Overview of IoT-Based Architecture Model for Smart Home Systems. - Odamboy Djumanazarov; Antti Väänänen; Keijo Haataja; Pekka J. Toivanen (ISDA, 2021)

AI in healthcare: A narrative review. - Antti Väänänen; Keijo Haataja; Katri Vehviläinen-Julkunen; Pekka J. Toivanen (F1000Research, 2021)

Proposal of a novel Artificial Intelligence Distribution Service platform for healthcare. - Antti Väänänen; Keijo Haataja; Katri Vehviläinen-Julkunen; Pekka J. Toivanen (F1000Research, 2021)

Real-time defect detection and classification on wood surfaces using deep learning. - Mazhar Mohsin; Oluwafemi Samson Balogun; Keijo Haataja; Pekka J. Toivanen (Image Processing: Algorithms and Systems, 2022)

Recent advancements in machine vision methods for product code recognition: A systematic review. - Jarmo Koponen; Keijo Haataja; Pekka J. Toivanen (F1000Research, 2022)

A novel deep learning method for recognizing texts printed with multiple different printing methods. - Jarmo Koponen; Keijo Haataja; Pekka J. Toivanen (F1000Research, 2023)

Convolutional neural networks for real-time wood plank detection and defect segmentation. - Mazhar Mohsin; Oluwafemi Samson Balogun; Keijo Haataja; Pekka J. Toivanen (F1000Research, 2023)

Efficiency Meets Accuracy: Benchmarking Object Detection Models for Pathology Detection in Wireless Capsule Endoscopy. - Tsedeke Temesgen Habe; Keijo Haataja; Pekka J. Toivanen (IEEE Access, 2024)

Tanned-ReLU: A Bounded and Smooth Activation Function for Reliable Deep Learning on Chaotic Multi-variate Data. - Saifullah Khan; Keijo Haataja; Pekka J. Toivanen (BMSD, 2025)

Precision enhancement in wireless capsule endoscopy: a novel transformer-based approach for real-time video object detection. - Tsedeke Temesgen Habe; Keijo Haataja; Pekka J. Toivanen (Frontiers Artif. Intell., 2025)