• 인터넷정보학회논문지
• /
• 제7권5호
• /
• pp.43-57
• /
• 2006

차세대 이동통신 시스템은 유 무선 네트워크의 통합과 더불어 이동성 및 고속 데이터 전송을 제공하는 형태로 진화할 전망이다. 따라서 이러한 상황에서 다양한 서비스를 제공하기 위해 이기종 무선망에 대한 연동 서비스에 대한 연구가 필요하다. 지금까지 연동망 구조에 대한 연구로서 하나의 핵심망을 기준으로 핵심망에서 네트워크들을 제어하는 형태의 연동망 구조가 연구되었고, 핵심망에서 서비스 통합 관리가 이루어져 다양한 서비스를 제공하게 된다. 하지만 핵심망에서 모든 이동성을 관리하기 때문에 네트워크 간 이동을 위한 버티컬 핸드오프 시에 핸드오프의 지연이 발생하며, 이전 통신한 네트워크로의 패킷은 손실된다. 이러한 문제를 해결하기 위해 본 논문에서는 CDMA2000, WiBro 및 WLAN 네트워크에 대해 그 특성에 따라 연동망 구조를 계층적인 구조로서 제안한다. 따라서 각 네트워크의 범위 특성에 따라 오버레이 구조로 구성되어 있으므로 핸드오프 지연 및 패킷 손실을 최소화 할 수 있다. 또한 제안된 연동망 구조상에서 동작하기 위한 핵심 기술로서 독립적으로 표준화된 프로토콜들을 적용하여 차세대 이동통신 시스템에 대한 연동 서비스의 프레임워크를 제시한다.

• 한국멀티미디어학회논문지
• /
• 제23권10호
• /
• pp.1236-1249
• /
• 2020

In a most recent object tracking research work, applying Convolutional Neural Network and Recurrent Neural Network-based strategies become relevant for resolving the noticeable challenges in it, like, occlusion, motion, object, and camera viewpoint variations, changing several targets, lighting variations. In this paper, the LSTM Network-based Tracking association method has proposed where the technique capable of real-time multi-object tracking by creating one of the useful LSTM networks that associated with tracking, which supports the long term tracking along with solving challenges. The LSTM network is a different neural network defined in Keras as a sequence of layers, where the Sequential classes would be a container for these layers. This purposing network structure builds with the integration of tracking association on Keras neural-network library. The tracking process has been associated with the LSTM Network feature learning output and obtained outstanding real-time detection and tracking performance. In this work, the main focus was learning trackable objects locations, appearance, and motion details, then predicting the feature location of objects on boxes according to their initial position. The performance of the joint object tracking system has shown that the LSTM network is more powerful and capable of working on a real-time multi-object tracking process.

• 한국정보통신학회논문지
• /
• 제7권1호
• /
• pp.142-148
• /
• 2003

병원에서 발생하는 대용량 의료영상들을 저장 및 전송 할 경우에 저장 매체 수요의 증가와 네트워크 속도의 저하 등의 문제점들이 야기된다. 이러한 문제점들을 해결하기 위한 방안으로 의료영상의 압축이 필요하게 되었다. 본 논문에서는 개개의 여러 압축방법들로 하나의 통합된 환경에서 다양한 종류의 의료영상들을 압축할 수 있는 통합압축환경시스템을 설계 및 구현하였다. 이 통합압축환경에 구현된 압축방법들 중에는 DICOM 3.0규약을 따르는 RLC, 무손실 JPEG 압축방식, JPEG방식들이 있다. 그리고 JPEG2000에 사용되어진 이산웨이블릿변환을 이용한 압축방식과 병 변에 대한 정확성을 높이고 압축률을 좋게 하기 위해서 하나의 영상에서 무손실 압축과 손실 압축을 동시에 하는 방법을 제안하였다. 그리고 영상 정보를 효율적 관리할 수 있게 데이터베이스와 연동이 가능하도록 하였다.

• 한국주거학회논문집
• /
• 제21권2호
• /
• pp.49-58
• /
• 2010

This study aims to examine how residents' perception of Neighborhood in the surrounding area changes to the spatial configuration changes due to co-residential area development in old urban area, and find out the characteristics of the perception changes. The research findings are as follows: First, the results of the spatial configuration changes analyzed by Space Syntax Model show that the integration value is between 0.5 and 0.7, which implies that the development in the old urban area does not contribute to the establishment of hierarchy. When the development takes place with the renewal of streets with consideration of the urban context, however, the integration improves relatively. Second, the actual distance and accessibility due to the street network appear to influence the residents' perception of Neighborhood. After the development, the residents' scope of perception increases on average. Third, the changes in the integration value of the streets after the development appear to influence the residents' scope of perception of Neighborhood. It turns out that there are frequent changes in the residents' scope of perception in the surrounding area around the streets with large increase in integration value, and the perception scope also moves to the center.

• 한국방송∙미디어공학회:학술대회논문집
• /
• 한국방송공학회 2009년도 IWAIT
• /
• pp.184-188
• /
• 2009

To interactively share High Definition (HD)-quality visualization over emerging ultra-high-speed network infrastructure, several lossless and low-delay real-time media (i.e., uncompressed HD video and audio) transport systems are being designed and prototyped. However, most of them still rely on expensive hardware components. As an effort to reduce the building cost of system, in this paper, we propose the integration of both transmitter and receiver machines into a single bi-directional transport system. After detailed bottleneck analysis and subsequent refinements of embedded software components, the proposed integration can provide Real-time Transport Protocol (RTP)-based bi-directional transport of uncompressed HD video and audio from a single machine. We also explain how to interface the Gbps-bandwidth display output of uncompressed HD media system to the networked tiled display of 10240 $\times$ 3200 super-high-resolution. Finally, to verify the feasibility of proposed integration, several prototype systems are built and evaluated by operating them in several different experiment scenarios.

• Journal of Contemporary Eastern Asia
• /
• 제4권1호
• /
• pp.1-7
• /
• 2005

In this paper uses Kaname Akamatsu's 'Flying Geese' model to analyse Japan's role in East Asian integration. Japan made the first attempt to lead Asian countries before the Second World War. At that time, the Japanese Government embarked on a brutally expansionist policy the result of which was creation of the first gaggle of 'flying geese' under the name of the 'Greater East Asia Co-Prosperity Sphere.' During the 'flight' Japan was forcefully imposing its own ideals and values on the rest of the 'gaggle.' At the same time, the Japanese Government assumed hostile attitude toward Western countries. Japan's defeat in the Second World War signified the end of flight for the first 'flying geese' gaggle. After the war, Japan made another attempt at regional integration. This time it was done through establishing a production network in East Asia. Thus the second gaggle of 'flying geese' came into existence. During the flight of the 'second gaggle' of geese, Japan was fostering good ties with Western countries as well, especially the United States. However, some leaders of the 'second gaggle's' member-countries emboldened by their countries' economic success proclaimed that future belongs to Asia and put forward the 'Asian values' argument. The Asian economic crisis of 1997 interrupted the flight of the 'second gaggle' and effectively put an end to the 'Asian values' debate. It is interesting to note that some elements of the 'Asian values' argument resembled ultranationalist discourse that had been dominant in Japan before and during the Second World War. This paper compares historical patterns of East Asian regional integration and highlights future challenges for Japan's Asia policy.

• 한국정밀공학회:학술대회논문집
• /
• 한국정밀공학회 1997년도 춘계학술대회 논문집
• /
• pp.395-399
• /
• 1997

An international standard for the product model data, STEP, and a standard for the distributed object technology. CORBA, will play a very important role in the future manufacturing environment. These two technologies provide background for the sharing of product data and the integration of applications on the network. This paper describes a prototype CAD/CAE enviroment that is integrated on the network by STEP and CORBA. Several application servers and client software were developed to verify the proposed concept.

• 한국CDE학회논문집
• /
• 제5권1호
• /
• pp.50-60
• /
• 2000

XML and CORBA have vast potential to improve software interoperability and to facilitate data exchange across applications and people from various disciplines and vendors. This Paper describes a framework for the integration and validity evaluation of injection mold design problems in a network-oriented design environment, based on In and CORBA. An overview of the framework is provided and an application to a design phase of injection mold is illustrated. The example illustrates how design validities are notified and design directions are provided to the designer during design process.

• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 1995년도 Proceedings of the Korea Automation Control Conference, 10th (KACC); Seoul, Korea; 23-25 Oct. 1995
• /
• pp.166-169
• /
• 1995

An intelligent system which is an integration of multi-functional instrumentation (MFI) and a neural network is discussed. According to some experiments of temperature and wind velocity it is clear that this system can learn the data structure of two parameters above. So it makes good performances for estimations of non-sample data.

• 대한전자공학회:학술대회논문집
• /
• 대한전자공학회 1999년도 하계종합학술대회 논문집
• /
• pp.162-167
• /
• 1999

ATM technology is well developed. Small-scale access node and edge switches are introduced in the network. Large scale ATM core switches are prepared for backbone application. Currently, Internet traffic is increasing so rapidly and we need to consider effective way of accommodating the volume of traffic. In the other hand, QoS and traffic engineering concept is required in the Internet services. Here, in this paper, two technologies are explained and suggested for integration of networks for future ATM based IP network.