• Journal of Korea Multimedia Society
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• v.10 no.3
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• pp.325-334
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• 2007

In order to increase the promotion of multimedia processing techniques in MPEG standard, MPEG Multimedia Middleware (M3W) which supports middleware interface for multimedia processing is set up. In this paper, multimedia protection and management service interfaces based on MPEG Multimedia Middleware (M3W) are introduced. The service interfaces are based on component models of M3W and support normative IPMP messages. The proposed interfaces are composed of Tool interfaces and Trust management interfaces: Tool interfaces provide the functionality supporting terminal and tool based on the governed decoder model and Trust management interfaces provide the supporting functionality such as license managing and authentication required in DRM devices. As an application of the proposed interfaces, a JAVA based player simulator is shown. The proposed interfaces can be easily implemented under various device and application environments as an ISO/IEC 23004-2 standard middleware platform.

• Journal of Korea Multimedia Society
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• v.10 no.3
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• pp.381-390
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• 2007

3D object contents are used for various applications in the Web virtual space, where the main concerns are to navigate the 3D virtual space and visualize 3D objects. The techniques to manipulate 3D objects like disassembling and assembling and to record the manipulation process are the very first step. Until now, we can record only the result of 3D object manipulation. Thus, we have tried to study the representation technique to record meaningfully and replay the manipulation process of 3D structured objects. We analyzed the structures and their relations between components to construct 3D objects that are described in XML or VRML. Compared to the previous method, we studied a XML based annotation technique to record and store selectively by user. This technique makes 3D structured objects be used in the various applications by the selective recording and also selective replaying.

• Journal of The Korean Association of Information Education
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• v.13 no.4
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• pp.497-508
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• 2009

As the educational use of intelligent service robots has been proved to be effective, educational service robots have been utilized in kindergarten. In addition, service robots will be used in elementary schools from 2010 for the after-school English program. This trend indicates that r-Learning using service robots will become a major educational paradigm in preparing for future education. This article consists of the following four parts. First, the concept and the type of educational robots were defined and the trend of previous research was examined. Second, the characteristics of robot-assisted learning were analyzed as a part of r-Learning, and difference between r-Learning and u-Learning was compared. Third, the contents and service using a robot-assisted learning system were discussed, the models and trend of service using the robot-assisted learning system were examined, and the aspects of viewing evolution were compared. Finally, suggestions for activating the service market of robot-assisted learning were made for the educational institution, research institution, government and robot companies.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.15 no.8
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• pp.1704-1713
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• 2011

This paper proposes a method to generate multiview images which use a synthesized image consisting of layered objects. The camera system which consists of a depth camera and a RGB camera is used in capturing objects and extracts 3-dimensional information. Considering the position and distance of the synthesizing image, the objects are synthesized into a layered image. The synthesized image is spaned to multiview images by using multiview generation tools. In this paper, we synthesized two images which consist of objects and human and the multiview images which have 37 view points were generated by using the synthesized images.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2012.10a
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• pp.665-668
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• 2012

This paper describes research results that 2-D contents, which display in smart phone or tablet PC to be able to see the 3-D stereoscopic by use projection technique. For this research, we have construct four brown-glass into pyramid shape, project each of the four LCD monitors that output from the PC screen into of the four inverted pyramid-shaped mirror and display the 3-D image to the center of the mirror system. For the test, We use tablet PC and server PC(desktop PC) connected by wireless network, tablet PC select contents which is displayed in the server PC, and displayed selected contents into the 3-D image to the center of the mirror system. Through the test, we have showed that it is possible to display 3-D stereoscopic to the 2-D contents by use projection technique. Although, display image is depending on the observer's viewing angle.

• The Journal of Korean Institute for Practical Engineering Education
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• v.2 no.2
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• pp.16-22
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• 2010

Accounting is a practical study as a fundamental of a corporate management. In recent years, the necessity of 'Engineering Accounting' and 'Accounting and Society' for non management and accounting major is on the rise. To accelerate the learning effect of accounting, the individual learning and learning by repetition is required. And ERP practice is on the rise as a new trend. The e-learning will be helpful to the individual learning and learning by repetition. The learner study repeatedly and individually by e-learning, and then practice the accounting process by ERP practice. It's also adoptable for Engineering Accounting to use repeated and individual study using e-learning and ERP practice. This paper is focused on the case study of Engineering Accounting using e-learning and ERP practice in Korea University of Technology and Education. To review this case, the development direction of the accounting education and engineering accounting education will be introduced.

• Journal of Game and Entertainment
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• v.2 no.3
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• pp.24-29
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• 2006

Nowadays, 'Interaction' is discussed not only in the multimedia field but also as a topic of daily life at the various viewpoints. And as the permmited limit of Interaction by Mutimedia Technology and audiovisual function is getting more activated, It is the time for us to have new understanding of a 'POSTER'. The Poster, as a one-sided information transmission media till now, is faced with its limitation in transmitting messages due to its unconformity between satisfaction of receiver' sdesire for information and installation space. This fact speaks for need of study about Digital Poster as an alternative communication method, and activation of Digital Poster Design Field. Therefore, I would like to present Design process and Examples by using Digital Poster for Maximizing the Communication Effect. And I expect the activation of Digital Poster Field by studying the possibility of development and various method of practical use of digital posters through presenting the examples.

• Journal of Internet Computing and Services
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• v.7 no.5
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• pp.95-108
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• 2006

The digital contents expand into software source code and maintenance of technology and IPR about source code have a very important meaning to international competition, The recognition about software security is very low specially among these Intellectual Property Rights. On occurring disputation property, we have to prove the fact, there is a problem to discriminate the original source code, Also, it is hard to accurate decision that is correct to complexity and the lack of read and understand ability even if software is reproduced. In this paper, we don't enforce distinction about software reproduction by one individual code unit. And we developed digital license prototype of XML that can distinguish reproduction based on structural conformability of whole source codes. Software has Context Free Grammar in structure and presents BNF notation type, it is apt to present hierarchical structure. Then, we can express architecture of software source code by hierarchical structure to discriminate structural conformability. In this paper, we make a study of the digital licence prototype for discriminate the original source code. Reserved words of software source code by parsing express to XML file that have hierarchical structure. Then, we can express architecture of software source code by tree structure form instead of complex source code.

• Education of Primary School Mathematics
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• v.20 no.4
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• pp.305-319
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• 2017

In the process of finding the triangle height, 26 students in the 6th grade were surveyed to understand the students' triangle height through the eye movement data and to investigate the cognitive load of the students. As a result, the correctness rate of the pre-test was significantly increased in the post-test, and the frequency and retention of gaze data were smaller in the post-test than in the AOI of each question. The Participants's subjective cognitive load indicated that it was more difficult to understand the concept of rotated triangles compared with upright triangles that were parallel to the ground. More frequent and more retentions in the eye-tracking data were detected in the right triangles and acute triangles by rotating configuration. Eye movement data show that eye tracking technology can provide an objective measure of students' cognitive load for feedback on instructional design.

• Journal of the Korean Society for Library and Information Science
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• v.48 no.1
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• pp.257-276
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• 2014

The purpose of this study is to investigate the patterns and barriers of the Internet for the elderly adults in Korea. Data was collected through the face to face interview using a questionnaire for the residence of Daegu and Kyungsang Buk-Do areas targeted over the 60-years-olds elder adults. A total of 119 valid response data were analyzed with the descriptive statistics and the group differences by age and gender using SPSS 18.00. It found that the most of the elder adults access the Internet to seek the entertainment contents, the knowledge-related contents, and the cultural and art contents. They spend most of the Internet online session to do searching information and enjoying movie and music. However, there were age differences and gender differences within the subjects. The complexity of computer and the Internet usage is one of the barriers for the Internet access, and they suggest that a customized education and training courses of computer literacy for the elderly adults would be the ways of resolve those obstructions.