A5031313030- Medical Imaging Techniques and Applications
- Retinal Imaging and Analysis
- Glaucoma and retinal disorders
- Image and Signal Denoising Methods
- Medical Imaging and Analysis
- Advanced MRI Techniques and Applications
- Functional Brain Connectivity Studies
- Neural dynamics and brain function
- Electrical and Bioimpedance Tomography
- EEG and Brain-Computer Interfaces
- Ultrasound Imaging and Elastography
- Medical Image Segmentation Techniques
- Advanced X-ray and CT Imaging
- Retinal Diseases and Treatments
- Neural Networks and Applications
- Flow Measurement and Analysis
- Ultrasonics and Acoustic Wave Propagation
- Heavy metals in environment
- Mine drainage and remediation techniques
- Photoacoustic and Ultrasonic Imaging
- Radiomics and Machine Learning in Medical Imaging
- Geochemistry and Elemental Analysis
- Dental Radiography and Imaging
- Brain Tumor Detection and Classification
- Blind Source Separation Techniques
Czech Academy of Sciences, Biology Centre
2015-2024
Institute of Soil Biology
2022-2024
Czech Academy of Sciences
2021-2024
University of South Bohemia in České Budějovice
2012-2023
Institute of Entomology
2023
Brno University of Technology
2011-2021
Institute of Hydrobiology, Biology Centre, Academy of Sciences of the Czech Republic
2012-2020
Nemocnice České Budějovice
2018
National Institute of Allergy and Infectious Diseases
2015
National Institute of Biomedical Imaging and Bioengineering
2015
Automatic assessment of retinal vessels plays an important role in the diagnosis various eye, as well systemic diseases. A public screening is highly desirable for prompt and effective treatment, since such diseases need to be diagnosed at early stage. Automated accurate segmentation blood vessel tree one challenging tasks computer‐aided analysis fundus images today. We improve concept matched filtering, propose a novel method segmenting vessels. Our goal able segment with varying diameters...
The paper is focused on sound-speed image reconstruction in 3-D ultrasound transmission tomography. Along with reflectivity and the attenuation coefficient, sound speed an important parameter which related to type pathological state of imaged tissue. This intended application, breast cancer diagnosis. In contrast 2-D tomography systems, a system can provide isotropic spatial resolution x-, y-, z-directions reconstructed images parameters. Several challenges must, however, be addressed for...
Images of ocular fundus are routinely utilized in ophthalmology. Since an examination using camera is relatively fast and cheap procedure, it can be used as a proper diagnostic tool for screening retinal diseases such the glaucoma. One glaucoma symptoms progressive atrophy nerve fiber layer (RNFL) resulting variations RNFL thickness. Here, we introduce novel approach to capture these computer-aided analysis textural appearance standard easily available color images. The proposed method uses...
A method for correction of nonhomogenous illumination based on optimization parameters B-spline shading model with respect to Shannon's entropy is presented. The evaluation Parzen windowing (Mangin, 2000) the spline-based model. This allows us express derivatives criterion analytically, which enables efficient use gradient-based algorithms. Seven different gradient- and nongradient-based algorithms were initially tested a set 40 simulated retinal images, generated by respective image...
This article deals with registration and fusion of multimodal opththalmologic images obtained by means a laser scanning device (Heidelberg retina angiograph). The framework has been designed tested for combination autofluorescent infrared images. process is necessary step consecutive pixel level analysis utilizing information from both modalities. Two methods are presented compared.
Growing interest in the examination of large-scale brain network functional connectivity dynamics is accompanied by an effort to find electrophysiological correlates. The commonly used constraints applied spatial and spectral domains during electroencephalogram (EEG) data analysis may leave part neural activity unrecognized. We propose approach that blindly reveals multimodal EEG patterns are related BOLD connectivity.The blind decomposition spectrogram parallel factor has been shown be a...
We evaluated the geochemical partitioning of Fe, Mn, As, V, and REE in sediments a recently flooded open-cast lignite mine to interpret their response established anoxia, minor variations redox potential its ferruginous bottom water column. Results from sequential extraction scheme targeting reactive Fe mineral phases are combined with an assessment sediment enrichment factors systematics. Across pile metal(loid)s being released pre-existing authigenic as shifts induce elemental...
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