Integration of additional device to a multimedia presentation system

OCTOBER 29, 2016

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Educational Technology Using Virtual Laboratory for Teaching Programming Veselina Nedeva, Galya Shivacheva Concerning the Potential of Using Game-Based Virtual Environment in Children Therapy

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Andrada David Investigating the possibilities of document cameras for quality assessment of foodstuffs by measuring of color

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Stanka Baycheva, Zlatin Zlatev, Antoaneta Dimitrova Integration of additional device to a multimedia presentation system

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Zlatin Zlatev Wearable solution for assessing physiological arousal towards students' interest and engagement in the classroom '

/ Branka Rodic Trmcic, Gordana Stanojevic, Rosa Sapic, Aleksandra Labus, Zorica Bogdanovic Serious Games: An Oxymoron?

* Alexandru Cristian Gheorghi , Monica Anghel Computer games as assessment tests '

* Carmen-Gabriela Bostan, Tudor-Codrin Bostan Temperature and Humidity Measurement System

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Mihai Bogdan The Simulation of the Temperature and the Humidity Measurement System

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Open Online Training for Humanitarians: the Pedagogical Background of RCRC Learning Platform Olimpius Istrate A Journey to Diversified and Personalised Learning: The Red Cross and Red Crescent Online Learning Platform – Evaluation Results Olimpius Istrate Interval-Valued Neutrosophic Oversets, Neutrosophic Undersets, and Neutrosophic Offsets Florentin Smarandache

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Scientific Committee/Technical Programme Committee / Executive reviewers Dr. Grigore Albeanu

Professor of Computer Science, Spiru Haret University, Research Center for Mathematics and Informatics, Romania

Dr. Adrian Adascalitei

Professor of Electrical Engineering Fundamentals, Technical University "Gh. Asachi", Faculty of Electrical Engineering, Iasi, Romania

Dr. Michael E. Auer

Professor of Electrical Engineering, Carinthia University of Applied Sciences, School of Systems Engineering, Villach, Austria General Chair, ICL – Interactive Computer aided Learning, http://www.icl-conference.org/

Dr. Angelos Amditis

Research Associate Professor (INTUITION Coordinator, http://www.intuition-eunetwork.net/), Institute of Communication and Computer Systems, ICCS- NTUA Microwaves and Optics Lab, ATHENS, GREECE

Professor of Computer Science (Virtual Reality), Mathematics Dr. Rare Boian and Computer Science, "Babes-Bolyai" University of ClujNapoca, Romania, http://www.ubbcluj.ro Dr. Grigore Burdea

Professor of Applied Science (Robotics), Rutgers – The State University of New Jersey, Director, Human-Machine Interface Laboratory, CAIP Center, USA

Dr. Pierre Chevaillier

LISYC – Laboratoire d'Informatique des Systèmes Complexes, CERV – Centre Européen de Réalité Virtuelle (European Center for Virtual Reality), France, European INTUITION Consortium member

Dr. Mirabelle D' Cruz

Virtual Reality Applications Research Team (VIRART), School of Mechanical, Materials and Manufacturing Engineering (M3),University of Nottingham University, U.K., European INTUITION Consortium member

Dr. Steve Cunningham

Noyce Visiting Professor of Computer Science, Grinnell College, Grinnell, Iowa, USA Department of Computer Science

Dr. Ioan Dzitac

Professor of Computer Science, Executive Editor of IJCCC, Agora University,Oradea, Romania

Dr. Victor Felea

Professor of Computer Science, “Al.I. Cuza” University of Iasi, Faculty of Computer Science, Romania

Dr. Horia Georgescu

Professor of Computer Science University of Bucharest, Faculty of Mathematics and Computer Science, Romania

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Dr. Radu Gramatovici

Professor of Computer Science University of Bucharest, Faculty of Mathematics and Computer Science, Romania

Dr. Felix Hamza-Lup

Professor of Computer Science at Armstrong Atlantic State University, USA

Dr. Angela Ionita

Romanian Academy, Institute for (RACAI), Deputy Director, Romania

Dr. Olimpius Istrate

University of Bucharest, Faculty of Psychology and Educational Sciences, Bucharest, Romania www.elearning.ro

Prof. Radu Jugureanu

AeL eContent Department Manager, SIVECO Romania SA, Bucharest, Romania www.siveco.ro

Dr. Bogdan Logofatu

Professor at University of Buchares, Faculty of Psychology and Educational Sciences, Bucharest, Romania www.unibuc.ro

Dr. Jean-Pierre Gerval

ISEN Brest (école d'ingénieurs généralistes des hautes technologies), France, European INTUITION Consortium member

Dr. Daniel Mellet-d'Huart

AFPA Direction de l'Ingénierie Unité Veille sur la Réalité Virtuelle MONTREUIL, European INTUITION Consortium member

Dr. Marius M ru teri

Professor in the Department of Informatics, University of Medicine and Pharmacy Târgu - Mure , Romania

Dr. Mihaela Oprea

Professor in the Department of Informatics, University of Ploiesti, Romania

Artificial

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Thomas Osburg Intel Education Manager, Europe www.intel.com/education

Dr. Harshada (Ash) Patel

Virtual Reality Applications Research Team (VIRART)/Human Factors Group Innovative Technology Research Centre, School of Mechanical, Materials and Manufacturing Engineering, University of Nottingham, University Park, Nottingham, U.K., European INTUITION Consortium member

Dr. Dana Petcu

Professor at Computer Science Department of Western University of Timisoara, Director at Institute e-Austria Timisoara, Romania

Professor of Computer Science, Ovidius University of Dr. Dorin Constanta, Romania / CERV– European Center for Virtual Mircea Popovici Reality (France, European INTUITION Consortium member) Professor of Computer Science, Director of the Advanced Dr. Ion Roceanu Distributed Learning Department, "Carol I" National Defence University, Bucharest, Romania

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Dr. Maria Roussou

Virtual Environments and Computer Graphics Lab., Department of Computer Science, University College London, U.K., European INTUITION Consortium member

Dr. Ronan Querrec

CERV – Centre Européen de Réalité Virtuelle (European Center for Virtual Reality), Laboratoire d'Informatique des Systèmes Complexes, France

Dr. Luca-Dan Serbanati

Professor of Computer Science, University "Politehnica" of Bucharest, Romania and Professor at the "La Sapienza" University, Italy, European INTUITION Consortium member

Dr. Leon Tambulea

Professor of Computer Science, "Babes-Bolyai" University, ClujNapoca, Romania

Dr. Jacques Tisseau

CERV – Centre Européen de Réalité Virtuelle (European Center for Virtual Reality), LISYC – Laboratoire d'Informatique des Systèmes Complexes, France, European INTUITION Consortium member

Dr. Alexandru Tugui

Professor at “Al. I. Cuza” University of Iasi, FEAA, “Al. I. Cuza” University Iasi, Romania

Dr. Marin Vlada

Professor of Computer Science, University of Bucharest, Romania, European INTUITION Consortium member

Research papers – Major Topics The papers describing advances in the theory and practice of Virtual Environments for Education and Training (VEL&T), Virtual Reality (VR), Virtual Laboratory (VirtLab), Information and Knowledge Processing (I&KP), as well as practical results and original applications. The education category includes both the use of Web Technologies, Computer Graphics (CG) and Virtual Reality Applications, New tools, methods, pedagogy and psychology, Case studies of Web Technologies and Streaming Multimedia Applications in Education, experience in preparation of courseware. Thematic Areas / Sections • • • •

MODELS & METHODOLOGIES (M&M) TECHNOLOGIES & VIRTUAL LABORATORY (TECH) SOFTWARE SOLUTIONS (SOFT) "Intel® Education" – Innovation in Education and Research (IntelEdu)

Integration of additional device to a multimedia presentation system Zlatin Zlatev1 (1)Trakia University, Faculty of Technics and Technologies Graf Ignatiev 38, 8602 Yambol, Bulgaria, e-mail:Zlatin.zlatev[at]trakia-uni.bg

Abstract The aim of this report is to present the technical characteristics of multimedia presentation systems in terms of their advantages and disadvantages. To review the possibilities for using hardware with open source to build additional devices to interactive presentation systems by using such devices to offer a solution to one of their disadvantages associated with data received from them. Keywords: Multimedia, Interactive presentation, Open source hardware, Spectrofotometer

1 Introduction One of the modern learning technologies with wide, even wider implementation are multimedia technologies. Basic tool into them are multimedia presentations. The meaning and purpose: to illustrate the educational content; content can be viewed quickly and efficiently by students; to maintain attention; Content can easily be meaningful; To support its retention; provoke the activity of the learner (Quertinmont at al, 1997; Rousseau at al, 2006). With the help of multimedia relatively difficult to understand theoretical formulations may be presented in an attractive and simple way to cause more interest and to facilitate the adoption of school curriculum disciplines. During the lectures, seminars, classes at school, at university or public lectures aiming to convince the audience in a thesis or teach certain knowledge in a particular area (Nedeva at al, 2012). Exactly, in those places it is important to be well tolerated and effective knowledge and used in new and useful ways of teaching. The positive aspects are primarily concerned with the wider visualization capabilities in the form of pictures, maps, tables, videos. And the possibility of an interesting way to present information in a concise and succinct form. On the other hand making presentations or materials for a multimedia presentation must be familiar with the basic rules of successful multimedia presentation of a matter – less, but more important text clearly and highlight differences in terms of font, color (Nedeva&Dineva, 2013). The multimedia allows for a more attractive presentation of the material, causing and more interest and feedback from the learner. Multimedia is entertaining and educational at the same time. The multimedia practically is realized by technical means. These hardware devices are used for: Recognition the actions of teaching and learners with visual, audio and tactile sensors with the purpose of influencing the multimedia system; Displaying visual, audio, tactile information; Implementation of communication functions in order to remotely access the multimedia. Table 1 presents the technical methods of interactive interaction between the trainer, presentation systems and the trainees. This type of interaction is known as multimodal (Shivacheva, 2015).

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Table 1. Technical methods for interaction Type Technical device Visualizing images Display Generating text Pattern Recognition Video sensor Text recognition Electronic marker Artificially generated voice Loudspeaker Voice recognition Microphone Touch recognition Touch sensor Recognition of vibrations Accelerometer Generation of vibrations Vibrating mechanism Communication environment – Network connections local or Internet

Recognition of visual, tactile and audio information is performed in the following steps: Preprocessing – formation of sensory data, and extracting the specific features; Training of the recognition system – creation of predictive models; Recognition – pattern, voice, touch recognition. The multimedia is used in interactive presentation systems. They fully or partially implemented technical methods of interactive interaction between the trainer, presentation systems and the trainees. 2 Interactive presentation systems The interactive presentation system (IPS) includes in its composition, projector, interactive whiteboard (IWB), additional devices (figure 1). Thereto be able to integrate additional devices such as document cameras, Clickers, tablets that have proven advantage in the learning process. Their use in the learning process increases the level of visualization and displaying of content and increase the interest of students to disciplines (Stoykova, 2015). The presentation systems are generally used for the creation and delivery of static images that have the following problem – they can not easily be changed during the presentation. This disadvantage hinders their use in the implementation of practical exercises related to the determination of parameters eg of foodstuffs by technical means.

Figure 1. Block diagram of typical interactive presentation system

Available are studies related to the solution of this problem. In (PASCO, 2016) is presented commercial optical drive - wireless spectrophotometer that through software that can visualize the

211 spectral characteristics of passage, absorption intensity on the screen of a tablet, mobile phone or through a projector on an interactive whiteboard. The disadvantage of the discussed device is that it is intended primarily for teaching chemistry and the software, although is distributed free has limited set of features and can not be modified to the needs of different users. 3 Using open source hardware in the design of addition devices to IPS In recent years there has been interest in building systems of type „open hardware“ in the academic and scientific fields. Devices built on this principle have the advantage that their schemes and programs are easily accessible and can be modified and adapted to the requirements of individual users. The reasons for this, for example, are best features of products that are not inferior to commercial analogues lower cost of technical equipment, lack of licensing fees, a large volume of freely available device-specific information and other technical solutions for its realization, sharing the experience with other developers. The development of open source software aimed to reduce the cost of software to levels that are acceptable to most people, increased interest in hardware with open source is due to the fact that it aims to reduce the cost of equipment for research and such devices to be available to everyone (Open source hardware, 2015). The interest in the development of devices using the camera of mobile phones as an optical sensor to build colorimeters, spectrophotometers, object recognition in images is increased (Cogliati at al, 2014). The reason for that, as the authors of the studies point is that the majority of the population, about 80% live in developing countries where laboratory equipment such as spectrophotometers is not widespread as the purchase and maintenance of such devices is unbearable for them. On the other hand mobile phones and web-cameras connected to a PC are widespread and the modern models have some possibilities for use as sensors for receiving, processing and analysis of optical information (Scheeline, 2016). 4 Spectrophotometer developed as additional device of IPS Based on the literature review and known methodologies (Pearce, 2014; Mladenov at al, 2015) to build hardware and software products have been developed and studied spectrophotometer operating in the visible spectral region that can be used both as an additional device to an interactive presentation system and for realization of practical exercises on subjects included in the curricula of departments “Electrical Engineering, Electronics and Automation” and “Food technologies” of faculty „Engineering and technology“ – Yambol, Bulgaria. Light source from eight white LEDs operated in the range 450nm which illuminates the sample surface. These LEDs are connected through resistors with 200 resistance to the power supply DC 5V 2A. Reflected light from the sample passes through the rectangular opening and is decomposed into the primary colors on a diffraction grating inclined at 10o. Video camera captures the area of decomposed of basic colors light and via a USB connection is introduced into the PC for processing. To set the spectrophotometer used benchmark for calibration on white and black Lovibond with serial number 12064, made in 2006. The reference listed reflection spectra in the range 390-710nm with increment 10nm, and the values of white color in Lab color model. The program of the system for obtaining spectral characteristics consists of two components – the basic program, operated by the user and a subroutine to convert an RGB image in spectral response in the visible spectral region. The primary program works on the following principle: consistently capture five images of the area with broken into primary colors of light diffraction grating spectrophotometer; Set aside R, G

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and B channels in the image and subroutine conversion in spectrum; Received five spectral characteristics are averaged and output the final characteristic that is saved to a file. In the subroutine for conversion of RGB to spectrum in the visible region are used techniques presented in (Glassner, 1989). Used is a function of matching colors CIE 1964, with observer 10o; D65 illumination values representing average daylight with UV components, 6500K. Third stage is a transformation of the color components in the reflectance spectra. The transformation of the values of XYZ color model in spectra reflection in the VIS, the area within 380 ÷ 780nm is done in mathematical relationships. The interactive presentation system shown in Figure 2 includes interactive whiteboard “Interwrite Dualboard” with software „e-Instruction WorkSpace” (eBeam, 2016); PC with installed software of interactive board software system Matlab and MS Excel; additional device spectrophotometer presented above. Remote access to interactive presentation system is implemented with software eBeam Connect, which is a web-based software, enabling teachers and students to interact in the learning process with Web-enabled devices such as iPad, tablets, laptops and smartphones. eBeam Connect enables the collaboration of browser-browser and browser-interactive whiteboard as the teacher can monitor the work of students in solving specific task in real time on IPS or on computer including in home, inflicting notes, comments, adjustments on the decision.

Figure 2. Hardware and software elements of the IPS

Using this software measurement results can be shared on devices of students - phones, tablets. students included in the current session, initiated by the lecturer. The students and lecturer can inflict comments and notes on the presentation image, or to conduct operational control in real time (Pehlivanova&Ducheva, 2011). The lecturer is able to use the electronic pen interactive whiteboard to work on the image and control the students.

213 5 Conclusion The multimedia in training is a tool with high efficiency as development and its use is responsible and creative process, consistent with the objective psychological-pedagogical and aesthetic requirements. The interactive presentation systems are an effective tool for disctance education respectively. elearning, as the possibility to create and record in appropriate materials, which may then be saved in the virtual library of the university and used by students to theoretical and practical self at a convenient time and place convenient for them. One disadvantage of the presentation systems that create static images and data generated can not be directly processed by the students, making it difficult to use them for training in working with technical equipment and the analysis of food products. There are additional devices that partially solve this problem as they are designed mainly for training on specific subjects and the software, despite being distributed for free have limited set of features and can not be modified to the needs of different users. The proposed spectrophotometer allows adaptation to the needs of individual users because its software was implemented in Matlab environment is represented as an algorithm and to it may be added additional features. For building the hardware part used a small number of affordable units with low cost. References Cogliati J. J., K. W. Derr, J. Wharton, (2014): Using CMOS Sensors in a Cellphone for Gamma Detection and Classifcation, January 7, pp.1-26 eBeam, e-Beam connect, http://ebeamconnect.com, accessed 2016 Glassner A. S., (1989): How to derive a spectrum from an RGB triplet, IEEE Computer Graphics and Applications 9, 4 (July 1989), pp.95–99 Mladenov M., St. Penchev, M. Dejanov, (2015): Complex assessment of food products quality using analysis of visual images, spectrophotometric and hyperspectral characteristics.// International Journal of Engineering and Innovative Technology (IJEIT), No Vol. 4, Iss., ISSN 2277-3754, pp.23-32 Nedeva V., S. Dineva, (2013): Design and development of efficient e-learning courses, ICVL 2013, Romania, ISSN: 1844-8933, pp.108-115 Nedeva V., Z. Zlatev, S. Atanasov (2012): Effective Resources Use for Virtual Laboratories through Cloud Computing and Services. In ICVL 2012, The 7th International Conference on Virtual Learning, ISSN: 1844-8933, pp.322-328 Open source hardware, https://en.wikipedia.org/wiki/Open-source_hardware (available on 17.07.2015) PASCO, Wireless spectrometer PS-2600, https://www.pasco.com, accessed 2016 Pearce J. M. (2014): How to Build Your Own Hardware and Reduce Research Costs, Chapter 6 – Digital Designs and Scientific Hardware, Open-Source Lab, pp.165-252 Pehlivanova, M., Zl. Ducheva (2011): Training in a virtual learning environment in the theoretical module - a factor for development of "responsible" driver, The 6th International Conference on Virtual Learning ICVL 2011, University of Bucharest and „Babe -Bolyai“ University of ClujNapoca, Romania, ISSN: 1844-8933, pp. 275-280 Quertinmont S., F. Loncke,K. Vander-Beken, F. Dutoit, C. De-Linbourg, (1997): Multimodalité communicationnelle: un modèle théoriique et des stratégies éducatives. (Communicational multimodality: a theoretical model and educaional strategies) Bulletin de Psychologie Scolaire et d' Orientation, 1, pp.7-17 Rousseau C., Y. Bellik, F. Vernier, D. Bazalgette, (2006): A Framework for the Intelligent Multimodal Presentation of Information, Signal Processing, Vol. 86, Iss.12, December 2006, ISSN 0165-1684, pp.3696-3713 Scheeline A., (2016): Cell phone spectrometry: Science in your pocket, Trends in Analytical Chemistry, pp.1-6 Shivacheva I., (2015): Multimedia in education - art and professionalism, Innovation and entrepreneurship, vol.3-4, ISSN 1314-9180, pp.24-37 Stoykova V., (2015): Interactive environments for training in the higher education, Proceedings of eLearning’15, University of applied sciences, Berlin, Germany, ISSN 2367-6698, pp.268-273