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ACCELERATING multimedia WITH ENHANCED MICROPROCESSORS

IEEE MICRO 1995年第2期15卷 22-32页

作者： LEE, RB STANFORD UNIV STANFORDCA 94305

A minimalistic set of multimedia instructions introduced into FA-RISC microprocessors implements SIMD-MIMD parallelism with insignificant changes to the underlying microprocessor. Thus, a software video decoder attains MPEG video and audio decompression and playback at real-time rates of 30 frames per second, on an entry-level workstation. Our general-purpose parallel subword instructions can accelerate a variety of multimedia programs.

关键词： multimedia programming macroprocessor acceleration playbacks Video Decoder MULTI-MEDIA SYSTEM

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A multimedia CONSTRAINT SYSTEM - (OR - DO WE HAVE IT MADE)

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COMPUTER GRAPHICS FORUM 1995年第3期14卷 C135-C148页

作者： VANHINTUM, JEA REYNOLDS, GJ CWI Department of Interactive Systems P.O. Box 94079 1090 GB Amsterdam the Netherlands E-mail: hansh@cwi.nl reynolds@cwi.nl

The MADE constraint system provides excellent opportunities to introduce constraints in a multimedia application. multimedia applications are not only a good place to experiment with constraint systems;constraints in a multimedia environment are almost indispensable. Due to the overwhelming amount of data and the number of relations between several parts of this data, multimedia applications almost demand the support of a constraint management system. The MADE constraint system combines the object oriented programming paradigm, inherited from the mC++ language, the declarative constraint programming paradigm and the special requirements imposed upon the constraint system by the multimedia environment. Among other things, the MADE constraint system provides parallel satisfaction techniques;several constraints may be solved simultaneously and this satisfaction process is performed in parallel with the application. This not only reduces the time needed to solve the constraints, it also allows the multimedia application to proceed with its presentation while (beneath the surface) the constraints are maintained. This not only holds for the parts of the presentation that are not constrained at all, but also for those parts that are. Furthermore, the constraint system is transparent to the multimedia application no special coding or preparation of the objects in the application is necessary. Constraints can be added later to the application without much work. Besides that, it is also possible to add and remove constraints at runtime;objects may be constrained for only a period of the time the application is running.

关键词： CONSTRAINTS CONSTRAINT programming OBJECT ORIENTED programming multimedia programming

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Impact of a cybertutor in dermatological teaching

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INTERNATIONAL JOURNAL OF DERMATOLOGY 2013年第6期52卷 722-727页

作者： Soirefmann, Mariana Comparin, Cristiane Boza, Juliana Wen, Chao Lung Cestari, Tania Ferreira Univ Fed Rio Grande do Sul Hosp Clin Porto Alegre Dept Dermatol BR-90046900 Porto Alegre RS Brazil Univ Sao Paulo Hosp Clin Sao Paulo Dept Telemed BR-05508 Sao Paulo Brazil

Background The potential value of multimedia programs as an accessory instrument for medical education has already been demonstrated in several areas. However, most of them lack adequate validation. The authors proposed this study in order to develop and evaluate a computer multimedia program, aiming at providing a more attractive and state of the art learning tool in dermatology. Methods The cybertutor was developed containing clinical cases, self-education classes, and short video presentations. In order to evaluate its impact, 50 undergraduate students attending the third year of Medical School at UFRGS were randomized into two groups: group 1 was submitted to a multimedia program on a specific dermatological subject parasite infestations, and group 2 to standard classes on the same subject. Both classes were taught by an experienced teacher, on the same subject and at the same time. In the end, the level of knowledge acquisition for the two groups was evaluated by a multiple choice test. Results The average of correct answers was 11.16 (SD=1.625) in group 1 and 11.96 (SD=1.645) in group 2. There were no statistically significant differences between the two groups (P=0.09). The majority (80%) of the students who attended the cybertutor group showed interest in taking part in similar activities. Conclusions According to this study, multimedia programs may be used for undergraduate education in Dermatology as a complementary educational tool. Contact with an instructor is still considered to be important and should be offered simultaneously.

关键词： multimedia programming Dermatology video presentation college student medical school Medical Education multiple choice test Students state of the art

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Modelling and implementing asynchronous timed multimedia frameworks using coordination principles

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FUTURE GENERATION COMPUTER SYSTEMS-THE INTERNATIONAL JOURNAL OF ESCIENCE 2005年第5期21卷 687-698页

作者： Papadopoulos, GA Univ Cyprus Dept Comp Sci CY-1678 Nicosia Cyprus

This paper combines work done in the areas of Artificial Intelligence, multimedia Systems and Coordination programming to derive a framework for Distributed multimedia Systems based on asynchronous timed computations expressed in a certain coordination formalism. More to the point, we propose the development of multimedia programming frameworks based on the declarative logic programming setting and in particular the framework of object-oriented timed concurrent constraint programming (OO-TCCP). The real-time extensions that have been proposed for the concurrent constraint programming framework are coupled with the object-oriented and inheritance mechanisms that have been developed for logic programs yielding an integrated declarative environment for multimedia objects modelling, composition and synchronisation. Furthermore, we show how the framework can be implemented in the general-purpose coordination language MANIFOLD without the need for using special architectures or real-time languages. (c) 2004 Elsevier B.V. All rights reserved.

关键词： multimedia programming timed concurrent constraint programming timed asynchronous languages coordination models distributed computing

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Building scalable and high efficient Java multimedia collaboration

Building scalable and high efficient Java multimedia collabo...

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International Symposium on Collaboration Technologies and Systems

作者： Wu, Wenjun Huang, Tao Fox, Geoffrey Indiana Univ Community Grids Comp Lab Bloomington IN 47405 USA

ISBN: (纸本)9780978569907

Java Media Framework (JMF) is platform-independent multimedia programming framework which enables easy and fast development of collaborative applications. This paper describes our work on building a high efficient multimedia collaboration system using JMF. We introduce a new rendering approach to optimize the performance of JMF and add screen capturing capability as well as new codecs. Based on this enhanced framework, a high efficient and platform-independent conferencing client named Global-MMCS AVPortlet is developed. The performance evaluation shows that it outperforms other well-known video collaboration tools.

关键词： JMF RTP multimedia programming render screen capture

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Modelling and implementing asynchronous timed multimedia frameworks using coordination principles

Modelling and implementing asynchronous timed multimedia fra...

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7th International Conference on Parallel Computing Technologies (PaCT 2003)

作者： Papadopoulos, GA Univ Cyprus Dept Comp Sci CY-1678 Nicosia Cyprus

关键词： multimedia programming timed concurrent constraint programming timed asynchronous languages coordination models distributed computing

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Development of a Web-based teaching and learning tool for the engineering students

Development of a Web-based teaching and learning tool for th...

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International Symposium on Intelligent multimedia, Video and Speech Processing

作者： Cheng, KWE Chan, KW Kwok, KF Lee, SK Chan, CH Cheung, TK Cheung, SC Hong Kong Polytech Univ Dept Elect Engn Hong Kong Hong Kong Peoples R China

ISBN: (纸本)9628576623

This paper presents the functions of a multimedia program developed under the project "Using Multi-lingual Web-based Distance Teaching Mode and Problem-based Learning Approach to Enhance Engineering Students' Learning Interest and English Standard". The program comprises of three functions, namely Interactive Exercises, Graph Plotting and Language Translation. The last function is subdivided into web-based dictionary, essay to link, spell check and text to speech. The role and the structures of these functions are examined in this paper.

关键词： Engineering students multimedia programming Function Learning computer-assisted instruction Competency-Based Education Knowledge Base for Teaching interpreters Pedagogy Teaching interest Text to voice transcription

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Integrating support for temporal media into an architecture for graphical user interfaces 97

Integrating support for temporal media into an architecture ...

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19th International Conference on Software Engineering (ICSE 97) - Pulling Together

作者： Graham, TCN Urnes, T Department of Computer Science York University 4700 Keele St. North York Canada M3J 1P3

ISBN: (纸本)0897919149

As computers are increasingly used for communicating information, multimedia has become an important component of interactive applications. Effective communication with multimedia requires tight media integration, highly interactive control over multimedia, and the use of multimedia to support group interactions. This paper shows how the MVC paradigm for user interface development can be extended to support temporal media. The resulting framework allows easy specification of media-integrated interactive applications, including multimedia groupware. All examples in this paper have been implemented in Clock, a novel programming environment, and run on IBM, SGI, and Sun workstations.

关键词： multimedia programming MVC software architecture groupware

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multimedia program Graphs and its benefit

Multimedia program Graphs and its benefit

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International Conference on Information Technology Interfaces

作者： Eva Milkova Martin Pozdilek Jiri Haviger University of Hradec Králové Hradec Kralove Czech Republic

ISBN: (纸本)9789537138127

The main purpose of the program graphs that is a visual representation of basic graph-concepts and graph-algorithms using a colouring process on graphs created within the program. The program was created in the Delphi environment by our student for his thesis, and enables the teacher to complete his/her lectures so that topics can be more comprehensible as well as saving the teacherpsilas time when he/she prepares text materials and presentations. Students using this program can revise subject-matter and understand it more deeply. They can easily prepare their assignments with the aid of program as well. This paper explores just a few ideas that have proved successful in enhancing education and optimization of studentspsila study habits.

关键词： multimedia program Graph theory Virtual study environment multimedia programming Graph theory Students Teachers visual representation Theses COLOR PROCESSING

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