Paweł Mikołajczak

ORCID: 0000-0003-2704-5025
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About
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Research Areas
  • Medical Image Segmentation Techniques
  • Medical Imaging Techniques and Applications
  • Image Retrieval and Classification Techniques
  • Advanced Image Fusion Techniques
  • Digital Image Processing Techniques
  • Brain Tumor Detection and Classification
  • 3D Shape Modeling and Analysis
  • Image and Object Detection Techniques
  • Image Processing and 3D Reconstruction
  • Advanced X-ray and CT Imaging
  • Advanced Radiotherapy Techniques
  • Digital Radiography and Breast Imaging
  • Computer Graphics and Visualization Techniques
  • Advanced Vision and Imaging
  • Advanced MRI Techniques and Applications
  • Semiconductor materials and devices
  • Advanced Materials Characterization Techniques
  • Face recognition and analysis
  • Image and Signal Denoising Methods
  • Forensic Anthropology and Bioarchaeology Studies
  • Metal and Thin Film Mechanics
  • Advanced Image and Video Retrieval Techniques
  • Remote-Sensing Image Classification
  • Head and Neck Surgical Oncology
  • Image Enhancement Techniques

Poznań University of Economics and Business
2024

State School of Higher Education in Chełm
2010-2021

Maria Curie-Skłodowska University
2002-2016

Institute of Computer Science
2006-2015

Hospital Base
2005

Institute of Physics
2000

Czech Academy of Sciences, Institute of Physics
1976-1989

Marie Curie
1989

Abstract The Czech Republic, Slovakia, and Poland, with their shared political histories, have confronted the compounded challenges of COVID‐19 pandemic Ukraine war. These difficulties spurred emergence public–nonprofit collaboration in all three countries, each taking distinct paths. Our study aims to unravel these divergent trajectories through lens historical institutionalism. Using this lens, we attribute divergence influence broader institutional environment, whose evolution has...

10.1111/padm.13016 article EN cc-by-nc-nd Public Administration 2024-07-18

Dual-energy X-ray imaging has a vast range of application in security. Luggage inspection is an essential process for airplane or court house security as well securing mass events. An image content some package may help to figure out if there any dangerous object inside and avoid possibly threatening situation. As the raw images are not always easy analyze interpret, processing methods like detection, frequency resolution increase pseudocoloring being used. Since color can be powerful tool...

10.1007/s11760-016-1001-7 article EN cc-by Signal Image and Video Processing 2016-10-31

In the new EU member states, there are very few studies analyzing role of central and local self-governments in co-design processes. Nevertheless, such particularly important as co-creation takes place context former post-communist countries where power reigned supreme cooperation with civil sector was limited. This article aims to enrich existing debate on self-government at level—specifically map extent which governments Visegrad Four region (Czech Republic, Hungary, Poland, Slovakia)...

10.17645/pag.v11i2.6282 article EN cc-by Politics and Governance 2023-01-26

An X-ray scanning and image processing have a vast range of applications in the security. content some package being passed for example to an airplane or court house may help figure out if there are any dangerous objects inside that avoid possible threatening situation. As raw images not always easy analyze interpret, methods like object detection, frequency resolution increase pseudocolouring used. In this paper, we propose pseudocoloring improvement over material based approach. By...

10.1016/j.ifacol.2015.07.058 article EN IFAC-PapersOnLine 2015-01-01

This paper presents some results concerning the application of fractal approach to analysis shape white brain matter in magnetic-resonance (MR) images. The dimension was calculated using box-counting algorithm.

10.17951/ai.2005.3.1.153-158 article EN Annales Umcs, Informatica 2015-01-04

This paper presents the development process of a platform for image processing with focus on medical imaging. Besides general algorithms and visualization tools, this includes advanced imaging modules segmentation, registration morphological analysis. It allows fast addition testing new using modular structure. New can be created by platform-independent C++ class library easily integrated whole system plug-in mechanism. An abstract, hierarchical definition language design efficient graphical...

10.17951/ai.2005.3.1.159-167 article EN Annales Umcs, Informatica 2015-01-04

Abstract An X-ray scanning and image processing have a vast range of applications in the security. content some package being passed for example to an airplane or court house may help figure out if there are any dangerous objects inside that avoid possible threatening situation. As raw images not always easy analyze interpret, methods like object detection, frequency resolution increase pseudocolouring used. In this paper, we propose pseudocoloring improvement over material based approach....

10.1515/eletel-2016-0006 article EN cc-by-nc-nd International Journal of Electronics and Telecommunications 2016-03-01

Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is a relatively new, promising technique for breast cancer diagnostics. A few series of images the same body region are rapidly acquired before, during and after injection paramagnetic contrast agent. Propagation agent causes modification MR signal over time. Its analysis provides information on tissue properties, including tumour status, that not available with regular MRI. If patient unintentionally changes position...

10.1109/fskd.2011.6019985 article EN 2011-07-01

Growing popularity of non invasive medical techniques makes accurate and reliable diagnostics based on image data more important. It is necessary to implement modern, highly automated processing techniques. Information theory statistics provide a means create such systems. In this paper we discuss application entropy mutual information in segmentation registration real world images.

10.1117/12.577941 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2004-07-07

because expert has to spend a few dozen of hours create visualization.Probably money is reason why this method often using reconstruction faraon, or king from thedarkness ages than nameless victim crime.There are works system which will be able make quickly and without any additional complicationsreconstruction the face according CAT scans taken in hospital with CT scanner. System like fulfillall limitations requirements workflow Manchester Protocol, one only ofreconstruction accepted all over world.

10.1117/12.577928 article EN Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE 2004-07-07

This paper presents an overview of two-dimensional image fusion methods using convolution filters and discrete wavelet transform developed by the authors.Image is a process combining two or more images same object into one extended composite image.It can extract features from source provide information than image.This technique be easily used for restoration enhancement.In this article authors focus on multi-exposure images, high dynamic range improvement depth-of-field enhancement.

10.2478/v10065-008-0005-5 article EN Annales Universitatis Mariae Curie-Sklodowska sectio AI – Informatica 2008-01-01

Multilayered Pd/V structures are produced by sequential deposition of palladium and vanadium using two electron-beam guns in an UHV system. Measured X-ray diffraction spectra show the peaks characteristic superlattices. The superlattice samples bombarded at room temperature with Ar2+ ions energies about 250 keV. After each implantation crystallographic structure is investigated θ-2θ as a function ion dose. Numerically simulated mixed superlattices compared experimental ones....

10.1002/pssa.2211120233 article EN physica status solidi (a) 1989-04-16

The paper presents a method to examine brain structures in neuroanatomy changes which result dementia magnetic resonance images by using fractal analysis techniques. We measured the relationship between dimensions of white matter and grey forebrain matter. investigation showed that differ from normal brain.

10.17951/ai.2006.5.1.161-169 article EN Annales Umcs, Informatica 2006-01-01

The analysis of medical images for the purpose computer-aided diagnosis and therapy planning includes segmentation as a preliminary stage visualization or quantification. In this paper, we present first step in our fuzzy system that is capable segmenting magnetic resonance (MR) human brain. histogram based on S-function membership Shannon's entropy function provides finding exact points. final stage, pixel classification performed using rule-based logic inference. When complete, attributes...

10.17951/ai.2004.2.1.201-208 article EN Annales Umcs, Informatica 2004-01-01
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