Wyniki wyszukiwania - Biblioteka Nauki

1

Wybrane zastosowania rozwiązań opartych na rozszerzonej rzeczywistości w technologii edukacyjnej oraz życiu społecznym

100%

Sokół M. , Sokół M.

Zeszyty Naukowe Wydziału Elektrotechniki i Automatyki Politechniki Gdańskiej

|

2015

|

tom Nr 41

51--56

PL

W artykule przedstawiono wybrane zagadnienia implementacji metod i technik rozszerzonej rzeczywistości w procesach nauczania oraz życiu społecznym. W pracy omówiono także zagadnienia rozszerzonej rzeczywistości, jako stosunkowo nowej dziedziny nauki, której dalszy rozwój uzależniony jest od rozwoju technologicznego i jej powszechnego odbioru społecznego. W pracy zostały przedstawione metody tworzenia hologramów wysokiej rozdzielczości, związane z tym ograniczenia oraz czynniki umożliwiające na chwilę obecną szerokie rozpowszechnienie tej formy wizualizacji i komunikacji multimedialnej.

EN

The paper presents selected issues of implementation methods and techniques of augmented reality in the process of teaching and social life. The paper also discusses the issues of augmented reality, as a relatively new field of science, whose further development depends on technological development and the general public perception. The paper presents methods for creating high-resolution holograms, the limitations and enabling factors at the moment, the wide dissemination of this form of visualization and multimedia communications.

2

Karta Warszawiaka ma już dwa lata

84%

Krajnow I.

|

2015

|

tom nr 4

48--50

PL

Choć obyło się bez fety – nie było tortu, dmuchania świeczek ani wylewnych życzeń – Karcie Warszawiaka „stuknęła” już druga rocznica. Z tej okazji warto podsumować, jak ta jedna z pierwszych miejskich kart „lojalnościowych”, oferujących mieszkańcom płacącym podatki w stolicy szereg zniżek, przyjęła się wśród warszawiaków i jakim cieszy się zainteresowaniem. Tym bardziej, że kartę czekają już niebawem pewne zmiany.

3

Concealing information in security hologram using interferometry

83%

Sharma A. K. , Chauhan P. , Varshney A. D.

|

tom Vol. 52, nr 3

385--394

EN

A new method utilizing holographic interferometry technique is described to conceal information in security holograms for enhancing their anti-counterfeiting ability. This concealed information can only be imitated if security hologram is illuminated through correct decoding wavefront generated through a key hologram. In decoding process, three spatially separated focus spots emerge at predefined positions which upon divergence further generate interferometric fringes modulated with concealed information in them. When security hologram is perfectly aligned, interferometric fringes disappear and concealed information becomes visible. The advantage of encoding through this technique lies in the fact that relative repositioning of key and security hologram becomes much easier and also additionally brings multifold improvement in the security level of the verification systems.

4

Online control education using 3D holographic visualisation

71%

Matišák J. , Rábek M. , Žáková K.

|

tom Vol. 14, No. 3

42--47

EN

Interactive 3D visualization technology has brought many benefits into education. Since it is possible to visualize behavior of wide range of devices, it is much easier to imagine processes where these devices are included. The paper demonstrates the application for interactive teaching of control theory. It allows to simulate a holographic model of a selected mechatronic system that is a digital visualization of the real device. The behaviour of the device is controlled by Scilab/Xcos, which is open‐source, cross‐platform numerical computational environment. The main purpose of the application is to help students with better understanding of physical meaning of abstract mathematical models, that describes dynamical systems.

5

Spatial light modulator design and generation of structured electromagnetic waves using digital light processors

71%

Yalcinkaya F. , Koc T. , Pala Z.

|

tom Vol. 52, nr 3

461--479

EN

Spatial light modulators (SLMs) are versatile devices used for optical studies. These instruments have a wide area of application in photonics. Additionally, SLMs have potential utility in different applications, such as biomedical applications, laser based surgery for precise cutting and as optical tweezers to separate cells in a petri container. However, the high cost of SLM devices prevents their widespread use in many areas, including industrial areas and scientific research laboratories. This paper demonstrates how to design a digital light processor (DLP) based low-cost SLM and describes how to obtain structured electromagnetic waves with the designed SLM. Therefore, this research was undertaken to design and produce a low-cost SLM device for optical applications. For this purpose, two prerequisites had to be fulfilled, the first was to use suitable components of a projection device with DLP-based digital micro-mirror device (DMD), and the second was to eliminate unnecessary SLM components from the system. Finally, holographic images reflected on the SLM screen were created by using Mathematica software program to change the amplitude and phase of the electromagnetic waves in order to obtain the structured electromagnetic waves.