Hypermedia, Internet Communication, and the Challenge of Redefining Literacy in the Electronic Age
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Nova College-Wide Course Content Summary Ite 170 - Multimedia Software (3 Cr.)
Revised 8/2012 NOVA COLLEGE-WIDE COURSE CONTENT SUMMARY ITE 170 - MULTIMEDIA SOFTWARE (3 CR.) Course Description Explores technical fundamentals of creating multimedia projects with related hardware and software. Students will learn to manage resources required for multimedia production and evaluation and techniques for selection of graphics and multimedia software. Lecture 3 hours per week. General Purpose In this course students will learn the concepts, design and implementation of multimedia for the web. Students will create professional websites which incorporate images, sound, video and animation. The materials created will correspond to standards for Web accessibility and copyright issues. Course Prerequisites/Corequisites Prerequisite: ITE 115 Course Objectives Upon completion of this course, the student will be able to: a) Plan and organize a multimedia web site b) Understand the design concepts for creating a multimedia website c) Use a web authoring tool to create a multimedia web site d) Understand the design concepts related to creating and using graphics for the web e) Use graphics software to create and edit images for the web f) Understand the design concepts related to creating and using animation, audio and video for the web g) Use animation software to create and edit animations for the web h) Use software tools to publish and maintain a multimedia web site Major Topics to be Included Plan and organize a multimedia web site User characteristics and their effect upon design considerations Principles of good design -
Image Compression, Comparison Between Discrete Cosine Transform and Fast Fourier Transform and the Problems Associated with DCT
Image Compression, Comparison between Discrete Cosine Transform and Fast Fourier Transform and the problems associated with DCT Imdad Ali Ismaili 1, Sander Ali Khowaja 2, Waseem Javed Soomro 3 1Institute of Information and Communication Technology, University of Sindh, Jamshoro, Sindh, Pakistan 2Institute of Information and Communication Technology, University of Sindh, Jamshoro, Sindh, Pakistan Abstract - The research article focuses on the Image much higher than the calculations mentioned above; this Compression techniques such as. Discrete Cosine Transform increases the bandwidth requirement of the channel which is (DCT) and Fast Fourier Transform (FFT). These techniques very costly. This is the challenging part for the researchers to are chosen because of their vast use in image processing field, transmit theses digital signals through limited bandwidth JPEG (Joint Photographic Experts Group) is one of the communication channel, most of the times the way is found to examples of compression technique which uses DCT. The overcome this obstacle but sometimes it is impossible to send Research compares the two compression techniques based on these digital signals in its raw form. Though there has been a DCT and FFT and compare their results using MATLAB revolution in the increased capacity and decreased cost of software, Graphical User Interface (GUI). These results are storage over the past years but the requirement of data storage based on two compression techniques with different rates of and data processing applications is growing explosively to out compression i.e. Compression rates are 90%, 60%, 30% and space this achievement.[8] 5%. The technique allows compressing any picture format to JPG format. -
An Empirical Test of Media Richness and Electronic Propinquity THESIS
An Inefficient Choice: An Empirical Test of Media Richness and Electronic Propinquity THESIS Presented in Partial Fulfillment of the Requirements for the Degree Master of Arts in the Graduate School of The Ohio State University By Ted Michael Dickinson Graduate Program in Communication The Ohio State University 2012 Master's Examination Committee: Dr. Jesse Fox, Advisor Dr. Brandon van der Heide Copyrighted by Ted Michael Dickinson 2012 Abstract Media richness theory is frequently cited when discussing the strengths of various media in allowing for immediate feedback, personalization of messages, the ability to use natural language, and transmission of nonverbal cues. Most studies do not, however, address the theory’s main argument that people faced with equivocal message tasks will complete those tasks faster by choosing interpersonal communication media with these features. Participants in the present study either chose or were assigned to a medium and then timed on their completion of an equivocal message task. Findings support media richness theory’s prediction; those using videoconferencing to complete the task did so in less time than those using the leaner medium of text chat. Measures of electronic propinquity, a theory proposing a sense of psychological nearness to others in a mediated communication, were also tested as a potential adjunct to media richness theory’s predictions of medium selection, with mixed results. Keywords: media richness, electronic propinquity, media selection, computer-mediated communication, nonverbal -
Network Requirements for High-Speed Real-Time Multimedia
NETWORK REQUIREMENTS FOR HIGH-SPEED REAL-TIME MULTIMEDIA DATA STREAMS Andrei Sukhov1), Prasad Calyam2), Warren Daly3), Alexander Iliin4) 1) Laboratory of Network Technologies, Samara Academy of Transport Engineering, Samara, Russia 2) Department of Electrical and Computer Engineering, Ohio State University, Ohio USA 4) HEANet Ltd, Dublin, Ireland 4) Russian Institute for Public Network, Moscow, Russia Abstract High-speed real-time multimedia applications such as Videoconferencing and HDTV have already become popular in many end-user communities. Developing better network protocols and systems that support such applications requires a sound understanding of the voice and video traffic characteristics and factors that ultimately affect end-user perception of audiovisual quality. In this paper we attempt to propose an analytical model for the various network factors whose interdependencies need to be modeled for characterizing end- user perception of audiovisual quality for high-speed real-time multimedia data streams. Towards validating our theory presented in this paper, we describe our initial results and future plans that consist of conducting a series of experiments and potential modifications to our proposed model. As the portion of middle and high-speed RTP (Real-Time Protocols) applications in the total communication over the Internet grows, it is important to understand the behavior of such traffic over the TCP/IP networks. The impetuous growth of traffic volumes and the rapid advances in the technologies of new-generation networks like IPv6 have made it possible for use of such high-speed applications, but with new demands on the network to deliver superior Quality of Service (QoS) to these applications. Our research focuses on the area of quality criteria for middle and high-speed network applications like • Video Conferencing / Streaming • Grid applications • P2P applications Audio- and Videoconferencing are two major multimedia communications that are defined by various international standards such as H.320, H.323 and SIP. -
Multimedia in Teacher Education: Perceptions & Uses
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by International Institute for Science, Technology and Education (IISTE): E-Journals Journal of Education and Practice www.iiste.org ISSN 2222-1735 (Paper) ISSN 2222-288X (Online) Vol 3, No 1, 2012 Multimedia in Teacher Education: Perceptions & Uses Gourav Mahajan* Sri Sai College of Education, Badhani, Pathankot,Punjab, India * E-mail of the corresponding author: [email protected] Abstract Educational systems around the world are under increasing pressure to use the new technologies to teach students the knowledge and skills they need in the 21st century. Education is at the confluence of powerful and rapidly shifting educational, technological and political forces that will shape the structure of educational systems across the globe for the remainder of this century. Many countries are engaged in a number of efforts to effect changes in the teaching/learning process to prepare students for an information and technology based society. Multimedia provide an array of powerful tools that may help in transforming the present isolated, teacher-centred and text-bound classrooms into rich, student-focused, interactive knowledge environments. The schools must embrace the new technologies and appropriate multimedia approach for learning. They must also move toward the goal of transforming the traditional paradigm of learning. Teacher education institutions may either assume a leadership role in the transformation of education or be left behind in the swirl of rapid technological change. For education to reap the full benefits of multimedia in learning, it is essential that pre-service and in-service teachers have basic skills and competencies required for using multimedia. -
Digital Rhetoric: Toward an Integrated Theory
TECHNICAL COMMUNICATION QUARTERLY, 14(3), 319–325 Copyright © 2005, Lawrence Erlbaum Associates, Inc. Digital Rhetoric: Toward an Integrated Theory James P. Zappen Rensselaer Polytechnic Institute This article surveys the literature on digital rhetoric, which encompasses a wide range of issues, including novel strategies of self-expression and collaboration, the characteristics, affordances, and constraints of the new digital media, and the forma- tion of identities and communities in digital spaces. It notes the current disparate na- ture of the field and calls for an integrated theory of digital rhetoric that charts new di- rections for rhetorical studies in general and the rhetoric of science and technology in particular. Theconceptofadigitalrhetoricisatonceexcitingandtroublesome.Itisexcitingbe- causeitholdspromiseofopeningnewvistasofopportunityforrhetoricalstudiesand troublesome because it reveals the difficulties and the challenges of adapting a rhe- torical tradition more than 2,000 years old to the conditions and constraints of the new digital media. Explorations of this concept show how traditional rhetorical strategies function in digital spaces and suggest how these strategies are being reconceived and reconfiguredDo within Not these Copy spaces (Fogg; Gurak, Persuasion; Warnick; Welch). Studies of the new digital media explore their basic characteris- tics, affordances, and constraints (Fagerjord; Gurak, Cyberliteracy; Manovich), their opportunities for creating individual identities (Johnson-Eilola; Miller; Turkle), and their potential for building social communities (Arnold, Gibbs, and Wright; Blanchard; Matei and Ball-Rokeach; Quan-Haase and Wellman). Collec- tively, these studies suggest how traditional rhetoric might be extended and trans- formed into a comprehensive theory of digital rhetoric and how such a theory might contribute to the larger body of rhetorical theory and criticism and the rhetoric of sci- ence and technology in particular. -
History of Computer Game Design Our Collaboration Will Build on Projects That We Two Have Been Engaged in for Some Time
How They Got Game: The History and Culture of Interactive Simulations and Video Games http://www.stanford.edu/dept/HPS/VideoGameProposal/ Principal Investigators Tim Lenoir, History of Science, email: [email protected] Henry Lowood, Stanford University Libraries, email: [email protected] Research and Development Team Carlos Seligo, ATS Freshman Sophomore Programs, email: [email protected] Carlos co-designed the Word and the World sites. His Blade Runner site is one of the most innovative interactive educational sites on the web Rosemary Rogers, Program Administrator, HPS, email: [email protected] Rosemary has designed the Mousesite, the HPS sites, and the Sloan Science and Technology in the Making sites. She has won numerous awards for her website designs. Undergraduate Interns Zachary Pogue, sophomore, email: [email protected] Zach is part of the DMZ design team that won the VPUE website design contract. He has extensive experience in interactive website design John Eric Fu, senior, email: [email protected] As a Presidential Scholar John has completed an outstanding research project comparing British and American video game products and culture. Since his early teens he has been a video game reviewer for Macworld. Grad Students Casey Alt, History of Science and Film Studies, email: [email protected] Casey has worked with Scott Bukatman, Pamela Lee, and Lenoir. He is working on Japanese Manga film and has extensive media experience. Yorgos Panzaris, History of Science, email: [email protected] Yorgos has a master's degree in educational technologies from the MIT MediaLab and has extensive experience with databases and online design. He has worked with Lenoir on several recent projects. -
Lecture 11 : Discrete Cosine Transform Moving Into the Frequency Domain
Lecture 11 : Discrete Cosine Transform Moving into the Frequency Domain Frequency domains can be obtained through the transformation from one (time or spatial) domain to the other (frequency) via Fourier Transform (FT) (see Lecture 3) — MPEG Audio. Discrete Cosine Transform (DCT) (new ) — Heart of JPEG and MPEG Video, MPEG Audio. Note : We mention some image (and video) examples in this section with DCT (in particular) but also the FT is commonly applied to filter multimedia data. External Link: MIT OCW 8.03 Lecture 11 Fourier Analysis Video Recap: Fourier Transform The tool which converts a spatial (real space) description of audio/image data into one in terms of its frequency components is called the Fourier transform. The new version is usually referred to as the Fourier space description of the data. We then essentially process the data: E.g . for filtering basically this means attenuating or setting certain frequencies to zero We then need to convert data back to real audio/imagery to use in our applications. The corresponding inverse transformation which turns a Fourier space description back into a real space one is called the inverse Fourier transform. What do Frequencies Mean in an Image? Large values at high frequency components mean the data is changing rapidly on a short distance scale. E.g .: a page of small font text, brick wall, vegetation. Large low frequency components then the large scale features of the picture are more important. E.g . a single fairly simple object which occupies most of the image. The Road to Compression How do we achieve compression? Low pass filter — ignore high frequency noise components Only store lower frequency components High pass filter — spot gradual changes If changes are too low/slow — eye does not respond so ignore? Low Pass Image Compression Example MATLAB demo, dctdemo.m, (uses DCT) to Load an image Low pass filter in frequency (DCT) space Tune compression via a single slider value n to select coefficients Inverse DCT, subtract input and filtered image to see compression artefacts. -
Image Compression Using Discrete Cosine Transform Method
Qusay Kanaan Kadhim, International Journal of Computer Science and Mobile Computing, Vol.5 Issue.9, September- 2016, pg. 186-192 Available Online at www.ijcsmc.com International Journal of Computer Science and Mobile Computing A Monthly Journal of Computer Science and Information Technology ISSN 2320–088X IMPACT FACTOR: 5.258 IJCSMC, Vol. 5, Issue. 9, September 2016, pg.186 – 192 Image Compression Using Discrete Cosine Transform Method Qusay Kanaan Kadhim Al-Yarmook University College / Computer Science Department, Iraq [email protected] ABSTRACT: The processing of digital images took a wide importance in the knowledge field in the last decades ago due to the rapid development in the communication techniques and the need to find and develop methods assist in enhancing and exploiting the image information. The field of digital images compression becomes an important field of digital images processing fields due to the need to exploit the available storage space as much as possible and reduce the time required to transmit the image. Baseline JPEG Standard technique is used in compression of images with 8-bit color depth. Basically, this scheme consists of seven operations which are the sampling, the partitioning, the transform, the quantization, the entropy coding and Huffman coding. First, the sampling process is used to reduce the size of the image and the number bits required to represent it. Next, the partitioning process is applied to the image to get (8×8) image block. Then, the discrete cosine transform is used to transform the image block data from spatial domain to frequency domain to make the data easy to process. -
Inventing Computational Rhetoric
INVENTING COMPUTATIONAL RHETORIC By Michael W. Wojcik A THESIS Submitted to Michigan State University in partial fulfillment of the requirements for the degree of Digital Rhetoric and Professional Writing — Master of Arts 2013 ABSTRACT INVENTING COMPUTATIONAL RHETORIC by Michael W. Wojcik Many disciplines in the humanities are developing “computational” branches which make use of information technology to process large amounts of data algorithmically. The field of computational rhetoric is in its infancy, but we are already seeing interesting results from applying the ideas and goals of rhetoric to text processing and related areas. After considering what computational rhetoric might be, three approaches to inventing computational rhetorics are presented: a structural schema, a review of extant work, and a theoretical exploration. Copyright by MICHAEL W. WOJCIK 2013 For Malea iv ACKNOWLEDGEMENTS Above all else I must thank my beloved wife, Malea Powell, without whose prompting this thesis would have remained forever incomplete. I am also grateful for the presence in my life of my terrific stepdaughter, Audrey Swartz, and wonderful granddaughter Lucille. My thesis committee, Dean Rehberger, Bill Hart-Davidson, and John Monberg, pro- vided me with generous guidance and inspiration. Other faculty members at Michigan State who helped me explore relevant ideas include Rochelle Harris, Mike McLeod, Joyce Chai, Danielle Devoss, and Bump Halbritter. My previous academic program at Miami University did not result in a degree, but faculty there also contributed greatly to my the- oretical understanding, particularly Susan Morgan, Mary-Jean Corbett, Brit Harwood, J. Edgar Tidwell, Lori Merish, Vicki Smith, Alice Adams, Fran Dolan, and Keith Tuma. -
9. the Rhetoric, Science, and Technology of 21St Century Collaboration
9. The Rhetoric, Science, and Technology of 21st Century Collaboration Ann Hill Duin University of Minnesota Jason Tham Texas Tech University Isabel Pedersen Ontario Tech University Abstract: We contend that collaboration is an imperative disciplinary as- sumption in technical and professional communication (TPC). Theorists, researchers, and practitioners grapple with ever-changing modes and models for collaborative work in academia, industry, and with communities. Tech- nical and professional communicators today must be prepared to collaborate with engineers, subject matter experts, and programmers; they must be adept at using collaborative software and working with global virtual teams. The purpose of this chapter is to synthesize the rhetoric, science, and technology of collaboration to consolidate a guiding framework for understanding, teaching, and practicing TPC collaboration in the 21st century and beyond. This unified framework provides guidance from which to structure one’s own collaboration and the collaborative projects we assign throughout our curriculum. We discuss collaborative software and team communication platforms and share example projects for preparing students for collaborative and global workplaces. Keywords: collaboration, rhetoric, technology, platforms, global virtual teams Key Takeaways: Collaboration across local and global contexts is an imperative disciplinary assumption in technical and professional communication (TPC). TPC instructors must prepare students for the collaborative frameworks and tools that -
Use and Adaptation of Written Language to the Conditions of Computer-Mediated Communication
Use and Adaptation of Written Language to the Conditions of Computer-Mediated Communication Ylva Hård af Segerstad Department of Linguistics University of Gothenburg, Sweden 2002 Use and Adaptation of Written Language to the Conditions of Computer-Mediated Communication Ylva Hård af Segerstad Doctoral Dissertation Publicly defended in Stora Hörsalen, Humanisten, University of Gothenburg, on December 21, 2002, at 10.00, for the degree of Doctor of Philosophy Department of Linguistics Göteborg University, Sweden 2002 This volume is a revised version of the dissertation. ISBN 91-973895-3-6 Use and Adaptation of Written Language to the Conditions of Computer-Mediated Communication Abstract The purpose of the present study is to investigate how written language is used and adapted to suit the conditions of four modes of computer-mediated communication (CMC). Texts from email, web chat, instant messaging and mobile text messaging (SMS) have been analyzed. The general human ability to adapt is deemed to underlie linguistic adaptation. A linguistic adaptivity theory is proposed here. It is proposed that three interdependent variables influence language use: synchronicity, means of expression and situation. Two modes of CMC are synchronous (web chat and instant messaging), and two are asynchronous (email and SMS). These are all tertiary means of expression, written and transmitted by electronic means. Production and perception conditions, such as text input technique, limited message size, as well as situational parameters such as relationship between communicators, goal of interaction are found to influence message composition. The dissertation challenges popular assumptions that language is deteriorating because of increased use in CMC. It is argued that language use in different modes of CMC are variants, or repertoires, like any other variants.