Showing papers by "Bogdan Smolka published in 2000"
TL;DR: The new method is based on the concept of a virtual particle performing a random walk on the image lattice, with transition probabilities derived from the Gibbs distribution, which is extremely fast and can be applied to the gray scale and colour images working on the RGB image components.
3 citations
TL;DR: To the knowledge it is the first technique capable of determining the comet tail shape in form of a binary image, which allows not only the calculations of all relevant comet parameters, but also enables the description of the comet shape and its textural structure.
1 citations
Proceedings Article•
01 Sep 2000
TL;DR: The paper presents a new technique of image enhancement based on a concept of a virtual particle that performs a special kind of a random walk — the so called self-avoiding random walk that enables the suppression of noise and contrast enhancement.
Abstract: The paper presents a new technique of image enhancement. The described algorithm enables the suppression of noise and contrast enhancement. The interesting feature of this new algorithm is that its iterative use leads to the image segmentation. The algorithm is based on a concept of a virtual particle, which performs a special kind of a random walk — the so called self-avoiding random walk. The transition probabilities of the random walk are determined by the median distribution. The segmentation effect obtained using this method, together with the ability of the algorithm to eliminate impulse and Gaussian noise makes it an interesting preprocessing tool for image analysis.
Proceedings Article•
01 Sep 2000
TL;DR: The gel electrophoresis is a method of separation of substances possessing electrical charge using the difference of their mobility in the electric field to identify protein or DNA fragments which migrate easily whereas the larger fragments are almost motionless.
Abstract: The gel electrophoresis is a method of separation of substances possessing electrical charge using the difference of their mobility in the electric field. The rate of migration of a fragment of a protein or DNA depends on the intensity of the constant electric field, on its resultant charge and the friction coefficient [1,2]. The effect of the electrical force is dependent on the fragment shape, its volume, mass and the viscosity of the medium. The fragments which are smaller than the gel pores migrate easily whereas the larger fragments are almost motionless. The problem with the analysis of gel images is that the bands can overlap, some of the bands are very weak and they are hardly visible. The gel images are very often corrupted by different kinds of noise, which makes their analysis difficult. As the standard software for analysing gel images are not very reliable, a human interaction is very often necessary. For this inspection, additional special tools are needed [3-7].