• Journal of Digital Convergence
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• v.12 no.10
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• pp.329-335
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• 2014

With the spread of mobile phones and wireless networks, medical imaging needs to be accessible outside the hospital for patients. We develop the mobile PACS platform that allows doctors or patients to store, search, query and transfer medical images for their convenience. This system is a mobile based platform that patients DICOM images can be viewed from the hospital PACS server, then they can be converted according to smart standardization. For this, we designed the platform to transfer the data between PACS, mPACS and users. Also we suggest to use DICOM transformation processing to display DICOM images in PACS server.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2007.06a
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• pp.117-120
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• 2007

It has able to be possible that expression and store visual image from analog to digital without picture quality damaged via improvement of video compression technology. And also, It is possible to broadcasting digital image via transmission of digital image on MPEG-2 standardization. for this reason, the broadcasting business owners have converted broadcasting service from analog to digital. But, local SO(System Operator) has a difficult point which secure HD(High Definition) broadcasting program. In this paper, we designed and implemented Scheduling System for MPEG-2 Digital broadcasting which gather HD broadcasting program from major broadcasting business owners(as like MBC, KBS, SBS, etc) and broadcast them.

• Journal of Digital Convergence
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• v.11 no.9
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• pp.195-200
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• 2013

In visual surveillance system abandoned objects in public places are the deliberately left things, which should be automatically detected by intelligent systems in the environment where the number of cameras is increasing. This research deals with the design scheme of a smart security disk system which can detect these abandoned objects automatically and save the relevant image information with the wireless interface of high definition images. By implementing the proposed system in this research it is confirmed that the transmission performance shows 60 frames per second without compression of high definition images and the capability of the disk system shows the relevant images can be saved in a RAID configuration. Also, the proposed visual surveillance software shows a good detection rate of 80% in PAT performance.

• Journal of Digital Convergence
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• v.11 no.10
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• pp.359-366
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• 2013

Due to the development and market expansion of image analysis and recognition technology, video security such as CCTV cameras and digital storage devices, are required for real-time monitoring systems and intelligent video security systems. This includes the development of more advanced technologies. A rotatable PTZ camera, in a CCTV camera system, has a zoom function so you can acquire a precise picture. However it can cause blind spots, and can not monitor two or more moving objects at the same time. This study concerns, the intelligent tracking of multiple moving objects, CCTV systems, and methods of video surveillance. An intelligent video surveillance system is proposed. It can accurately shoot broad areas and track multiple objects at the same time, much more effectively than using one fixed camera for an entire area or two or more PTZ cameras.

• Proceedings of the Korean Information Science Society Conference
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• 2004.04b
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• pp.904-906
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• 2004

영화를 제작하는 과정에 필수적으로 사용되고 있는 대본에는 필요한 부분마다 영상기법이 명시되어 있어서 실제 장면을 구현하는 과정에 원작자가 의도하는 상황을 비교적 정확하게 재현하는 것이 가능하다. 이에 비하여 교통사고 사건보고서나 동화 등을 기반으로 디지털 영상을 자동으로 제작하려는 경우 이러한 영상기법이 명시되어 있지 않다. 그러므로 자연언어로 기술된 자료로부터 디지털 영상을 자동으로 제작하기 위해서는 작가의 의도를 파악하여 적절한 영상기법을 추출하는 방안이 있어야 한다. 본 논문의 선행 연구에서는 동화를 대상으로 하는 애니메이션 자동 생성을 위해서 시간 관리, 참조 해결, 위치 설정, 세부 명령 결정 및 다수 캐릭터 제어 등의 요소 기술이 필요하다는 것을 보이고 특히 시간 관리 중에서 적절한 장면전환이 필요한 경우를 자동으로 파악하는 방안을 제시하였다. 본 논문에서는 결합범주문법을 사용하여 동화 문장에 나타나는 작가의 의도를 분석하고, 이에 부합하는 다양한 카메라 운용기법을 자동으로 파악하여 적용한 디지털 영상 제작 방안을 제시하고 구현한 시스템을 보인다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.10a
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• pp.561-564
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• 2009

This paper present design and implementation of U-city infrared image surveillance system based on the digital media processor. The hardware is designed and implemented by using commercial chips such as DM642 processor and video encoder, video decoder and the functions of software are to analyze temperature distribution of a monitoring image and to monitor disaster situation such as fire. The required functions and performances are confirmed by testing of the prototype and we verified practicality of the system.

• The KIPS Transactions:PartB
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• v.15B no.3
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• pp.245-252
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• 2008

We present a classification algorithm based on ant colony system(ACS) for classifying digital images. The ACS has been recently emerged as a useful tool for the pattern recognition, image extraction, and edge detection. The classification algorithm of digital images is very important in the application areas of digital image coding, image analysis, and image recognition because it significantly influences the quality of images. The conventional procedures usually classify digital images with the fixed value for the associated parameters and it requires postprocessing. However, the proposed algorithm utilizing randomness of ants yields the stable and enhanced images even for processing the rapidly changing images. It is also expected that, due to this stability and flexibility of the present procedure, the digital images are stably classified for processing images with various noises and error signals arising from processing of the drastically fast moving images could be automatically compensated and minimized.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.33 no.3
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• pp.123-155
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• 2022

This study focuses on the management of the news production system in broadcasting companies. This paper concentrates on the process of data registration and metadata management in order to examine whether the currently produced news can have value as a 'public record' in the long term, and whether reliable and accurate information is preserved. In addition, the user experience in the current system is analyzed through in-depth interviews with Ingest Managers, Editors, and Archive Managers, who are closely related to metadata creation compared to other members of the its News Department. Finally, a sustainable metadata quality management method is sought to increase the value of news footage as a 'public record'. In this study, these points can be found out: the metadata of the news agency footage is input manually according to the user's will or working style, that is, the user-friendly metadata input system is insufficient. Accordingly, it can be seen that the quality of the metadata of the news video continues to deteriorate. As an alternative to overcome this, it is found that work flow improvement, system improvement, classification system and metadata improvement plan, etc. are definitely necessary in the short and long term.

• Proceedings of the Korea Information Processing Society Conference
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• 2014.04a
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• pp.20-23
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• 2014

기존 사용되고 있는 디지털 도어락은 사용자의 편의에 중점을 두어 보안 측면에서는 매우 취약한 단점이 있다. 이에 본 논문은 카메라와 센서, 통신 모듈이 결합된 디지털 도어락과 중계기, 서버를 시스템화하여 도어락 설치장소 전방에서 접근하는 객체를 감지 및 인식하고 이미지와 문 열림 정보를 사용자의 스마트 디바이스로 전송해 주는 영상 디지털 도어락 시스템을 제안하고자 한다. 제안한 시스템은 실험 결과 대상거리 내에서 96~98%의 접근자 인식률과 사용 통신망에 따라 평균 약 17.1~23.9초의 전송시간이 소요되었다. 따라서 도어락 시스템 전방의 상황을 모니터링하여 실시간 보안 대응이 가능할 것으로 판단된다.

• Journal of radiological science and technology
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• v.26 no.3
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• pp.13-17
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• 2003

By converting movable indirect mass chest X-ray devices for vehicles into digital systems and upgrading it to share information with the hospital's medical image information system, excellencies have been confirmed as a result of installing and running this type of system and are listed hereinafter. 1. Upgrading analog systems, such as indirect mass chest X-ray devices dependent on printed film, to digital systems allows them to be run and managed much more efficiently, contributing to the increase in the stability and the efficiency of the system. 2. Unlike existing images, communication based on DICOM standards allow images to be compatible with the hospital's outer and inner network PACS systems, extending the scope of the radiation departments information system. 3. Assuming chest-exclusive indirect mass chest X-rays, a linked development of CAD (Computer Aided Diagnosis, Detector) becomes possible. 4. By applying wireless Internet, Web-PACS for movable indirect mass chest X-ray devices for vehicles will become possible. Research in these fields must continue and if the superior image quality and convenience of digital systems are confirmed, I believe that the conversion of systems still dependent on analog images to modernized digital systems is a must.