36 citations · 82 across the 17 of their papers we have counts for
17 papers
Cell segmentation from telecentric bright-field transmitted light microscopy images using a Residual Attention U-Net: a case study on HeLa line
Ali Ghaznavi, Renata Rychtarikova, Mohammadmehdi Saberioon +1
Living cell segmentation from bright-field light microscopy images is challenging due to the image complexity and temporal changes in the living cells. Recently developed deep lear…
Quantification of collective behaviour via causality analysis
Kirill Lonhus, Dalibor Stys, Renata Rychtarikova
Terms such as leader, mediator, and follower sound equal in the description of a pack of wolves, a street protest crowd, or a business team and have very similar meanings. This ind…
Estimation of rheological parameters for unstained living cells
Kirill Lonhus, Renata Rychtarikova, Ali Ghaznavi +1
In video-records, objects moving in intracellular regions are often hardly detectable and identifiable. In order to squeeze the information on the intracellular flows, we propose a…
Quasi-spectral characterization of intracellular regions in bright-field light microscopy images
Kirill Lonhus, Renata Rychtarikova, Ganna Platonova +1
Investigation of cell structure is hardly imaginable without bright-field microscopy. Numerous modifications such as depth-wise scanning or videoenhancement make this method being…
Spectroscopic Approach to Correction and Visualisation of Bright-Field Light Transmission Microscopy Biological Data
Ganna Platonova, Dalibor Stys, Pavel Soucek +3
The most realistic information about the transparent sample such as a live cell can be obtained only using bright-field light microscopy. At high-intensity pulsing LED illumination…
Segmentation of laterally symmetric overlapping objects: application to images of collective animal behaviour
K. Lonhus, D. Štys, M. Saberioon +1
Video analysis is currently the main non-intrusive method for the study of collective behavior. However, 3D-to-2D projection leads to overlapping of observed objects. The situation…
Point Divergence Gain and Multidimensional Data Sequences Analysis
Renata Rychtáriková, Jan Korbel, Petr Macháček +1
We introduce novel information-entropic variables -- a Point Divergence Gain (), a Point Divergence Gain Entropy (), and a Point Divergence Gain Entro…
Application of electromagnetic centroids to colocalization of fluorescing objects in tissue sections
Renata Rychtarikova, Georg Steiner, Gero Kramer +2
Light microscopy as well as image acquisition and processing suffer from physical and technical prejudices which preclude a correct interpretation of biological observations which…
Colorimetric Calibration of a Digital Camera
Renata Rychtarikova, Pavel Soucek, Dalibor Stys
In this paper, we introduce a novel - physico-chemical - approach for calibration of a digital camera chip. This approach utilizes results of measurement of incident light spectra…
Information limits of optical microscopy: application to fluorescently labelled tissue section
Renata Rychtarikova, Georg Steiner, Michael B. Fischer +1
The article demonstrates some less known principles of image build-up in diffractive microscopy and their usage in analysis unravelling the smallest localized information about the…
Observation of dynamics inside an unlabeled live cell using bright-field photon microscopy: Evaluation of organelles' trajectories
Renata Rychtarikova, Dalibor Stys
This article presents an algorithm for the evaluation of organelles' movements inside of an unmodified live cell. We used a time-lapse image series obtained using wide-field bright…
Super-resolved 3-D imaging of live cells organelles from bright-field photon transmission micrographs
Renata Rychtarikova, Tomas Nahlik, Kevin Shi +5
Current biological and medical research is aimed at obtaining a detailed spatiotemporal map of a live cell's interior to describe and predict cell's physiological state. We present…
Optimal noise in the hodgepodge machine simulation of the Belousov-Zhabotinsky reaction
Dalibor Stys, Krystof M. Stys, Anna Zhyrova +1
One of the simplest multilevel cellular automata - the hodgepodge machine - was modified to best match the chemical trajectory observed in the Belousov-Zhabotinsky reaction. Noise…
Model of the Belousov-Zhabotinsky reaction Part 2: Central role of the internal excitationgrowth rate
Dalibor Stys, Renata Rychtarikova, Tomas Nahlik +2
The model of the Belousov-Zhabotinsky reaction, so-called hodgepodge machine, is discussed in detail and compared with the experimentally determined system trajectory. We show that…
Model of the Belousov-Zhabotinsky reaction
Dalibor Stys, Tomas Nahlik, Anna Zhyrova +3
The article describes results of the modified model of the Belousov-Zhabotinsky reaction, which resembles rather well the limit set observed upon experimental performance of the re…
Measurement in biological systems from the self-organisation point of view
Dalibor Štys, Jan Urban, Renata Rychtáriková +2
Measurement in biological systems became a subject of concern as a consequence of numerous reports on limited reproducibility of experimental results. To reveal origins of this inc…
Point Information Gain and Multidimensional Data Analysis
Renata Rychtáriková, Jan Korbel, Petr Macháček +4
We generalize the Point information gain (PIG) and derived quantities, i.e. Point information entropy (PIE) and Point information entropy density (PIED), for the case of Rényi entr…