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Autostereoscopy is a method for effective visualization of three-dimensional models with the help of ordinary imaging techniques. It allows achieving the 3D object observation without the need for special goggles, displays or other equipment. The Method itself is using rapidly alternating images of given object taken from defined angles, mimicking the position of the human eyes. Such animation induces a sense of depth. Autostereoscopy can be applied to a static image or even dynamic video materials. Firstly, we ha...

The article deals with geodetic works connected with the construction of the space position of the track together with the measurement of the 3D axis of the track on the section 2363 (the state border between the Slovak Republic and the Czech Republic and the railway station Horn? Lide?, which is located in the territory of the Czech Republic). In the introduction, the purpose of measurement and site description are briefly described. In the core of the article, there is a way of creating SPT (spatial position of ...

Mining is one of the most devastating forms of meeting human needs. As it is clear from the aerial photographs, the landscape of the north-western part of the Czech Republic is highly affected by the activity of the mining industry, namely lignite quarries. During the activities at these quarries, the landscape is transformed into a form that resembles the surface of the moon. For this reason, the law imposes an obligation on mining companies to reclaim the landscape after their activity to guarantee the higher cu...

Many decades have elapsed since the invention of the steam engine and gradually falls into forgotten. However, the most significant message that has emerged when discovering this facility is the discovery of the railway. In order to make the track and therefore the railway as we know it today, it was necessary to develop methods of construction at the same time, and last but not least, the methods and devices for their reconstruction. One of the most important discoveries in the field of railway construction has u...

Coal mining causes undesirable terrain subsidence due to caving in of the overlying rocks into the already excavated space. Subsidence deforms the terrain, damages structures on the surface and water flows, which results in the formation of inaccessible wetlands and swamps, and these areas need to be reclaimed. The problem of large flooded areas as a result of mining activities also concerns an area known as пїЅKozinecпїЅ, which is located between KarvinпїЅ and Doubrava in the Czech Republic. That territory has lo...

Since the beginning of deep mining for the acquisition of minerals or driving galleries, later tunnels, man has faced the problem connected with draining used and polluted air (the so-called mine air), and transport of fresh air to the workplace. Since time immemorial, mine air has influenced and prevented the work of miners and drifters, as well as of the mechanized technology. The most significant factors of air pollution include exhaust fumes of mechanisms used in the performance of work, blasting fumes and, ob...

In this contribution, the authors describe a novel method of visualizing any 3D object into a 2D seamless picture with the use of cartographical principles. The method uses properties of a sphere with reflective inner surface, in which a 3D object and capturing camera are placed. A sphere surface is consequently unfolded using cartographic projection allowing to see the whole object in 2D. The method can be applied to any objects, preferably those of non-human origin, e.g. trees with leaves, cave systems, EarthпїЅ...

This article deals with a possibility of extraction flotative Ag-concentrate from the waste material, concretely slag arising from processing of silver and copper in the second half of the twentieth century, which is deposited around the city of KutnпїЅ Hora in the Markovi?ky region. A cationic octadecylamin was used as a flotative collector. The aim was to reach maximum metal content of the concentrate as well as maximum yield of Ag into concentrate during a decrease of raw material capacity. An anion active coll...