• Journal of Advanced Navigation Technology
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• v.13 no.6
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• pp.1011-1016
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• 2009

In this paper, we propose the method of fire detection. A wide distribution of CCTV cameras (Closed Circuit Television) in many public areas can be used not only for video surveillance systems but also for detecting fire occurrence. A proposed approach is based on visual information through a static camera. Video sequences are analyzed to find fire candidates and then spatial analyses procedure for detected fire-like color foreground is carried out. From the simulation results, our method showed the best performance when spatial and temporal fire candidates changes rapidly and close to fire motion.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.05a
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• pp.401-403
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• 2016

정부기관이나 공공기관의 폐쇄망하에서 상용 모바일망을 통한 모바일 영상정보 및 스마트워크를 지원하기 위해서는 단말 보안 및 네트워크 보안이 필수적으로 제공되어야만 한다. 폐쇄망하에서 상용 모바일을 통한 단말 보안 및 네트워크 보안을 위해서 SSLVPN 기술을 활용이 필수적이다. 본 논문에서는 폐쇄망 환경하에서 모바일 영상정보 및 스마트 환경에 적합한 모바일 SSLVPN을 활용한 네트워크망의 설계 및 구축방안을 제시하고자 한다. 제안하는 시스템에서는 폐쇄망에서 상용망을 사용하여 모바일 장비를 사용하여 영상정보를 제공하고 업무를 지원할 수 있는 특징을 가지고 있다.

• The Journal of the Korea Contents Association
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• v.6 no.6
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• pp.33-41
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• 2006

Nowadays, CCTV can be come across easily in public institutions, banks, and etc. These CCTV play very important roles for preventing many kinds of crimes and resolving those crime affairs. But in the case of recording image of a specific person far from the CCTV, the original image needs to be enlarged and recovered in order to identify the person more obviously. Interpolation is usually used for the enlargement and recovery of the image in this case. However, it has a certain limitation. As the magnification of enlargement is getting bigger, the quality of the original image can be worse. This paper uses FDP(Facial Definition Parameter) proposed by the MPEG-4 SNHC FBA group and introduces a new algorithm that uses face outline information of the original image based on the FDP, which makes it possible to recover better than the known methods until now.

• Journal of the Korea Society of Computer and Information
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• v.25 no.6
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• pp.57-64
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• 2020

Video surveillance is consists of cameras, transmission devices, storage and playback devices, and is used for crime prevention and disaster monitoring. Recently, it has been spreading to a wide variety of fields, and has developed into an intelligent video surveillance system that can automatically recognize or track characteristic objects of people and things. The purpose of this study was to investigate the cases of video surveillance service applying the latest technology by dividing it into the home, public, and private sectors. also this study tried to investigate and research what advantage it brings from a business perspective. By looking at the cases introduced in this study, it was confirmed that the viedo security service is developing intelligently, such as excellent compatibility with CCTV, multiple video surveillance, CCTV screen motion detection, and alarm through automatic analysis.

• Journal of Wetlands Research
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• v.20 no.3
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• pp.219-226
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• 2018

Interceptor sewer is installed underground near to the river side mostly ofstate-owned land and the management efficiency of public sewage disposal facilities is decreasing as too much infiltration/inflow(I/I) and river flow to interceptor sewer are caused by broken or deteriorated sewer. This also affects the sewer pipeline project and decreases its efficiency. Therefore, the aim of this study is to investigate interceptor sewer which has influence on the reduction of the project effect. The investigation were performed for three study areas. The study includes the investigation of current condition of interceptor sewer(sewer extension, pipe diameter, pipe type, installed year, installed locations, etc), investigation of inside of sewer by CCTV accompanied by pumping and dredging works where required, investigation of inside of manholes by eyes, calculation of pollutant load using the results of investigation of flow quantity and quality. Multipoint investigations were simultaneously performed for flow quantity at confluence area and other investigations were also performed for flow quantity and BOD for interceptor sewer and comparison of pollutant load, investigation of infiltration/inflow(I/I) caused by deterioration of interceptor sewer. As the result of the study, a main reason for reduced effect of sewer pipe improvement project was analyzed as the low-density sewage and I/I in public seweage treatment Facility due to deteriorated and unmanaged interceptor sewers.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.9
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• pp.120-125
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• 2016

For the purpose of protecting personal property and lives from incidents, accidents, and threats such as terrorism, video surveillance equipment has been installed and operates in many places. Video surveillance technology has gradually developed into high-quality, high-definition equipment, and a lot of products have been launched. However, closed circuit television (CCTV) equipment for security purposes can invade a person's privacy. In this paper, we propose a way to protect personal video images using meta-data in an intelligent Internet protocol (IP) camera. We designed the system to mask personal video information from meta-data, define the method of image-information access according to user privileges, and show how to utilize the meta-data during storage and recorded data searches. The suggested system complies with guidelines for CCTV installation and operation from Korea's Ministry of the Interior. Installed on only a single server so far, due to the limitations and technical difficulties of hardware performance, it has been difficult to find a method that can be applied to personal image information using real-time protection techniques. Applying the method proposed in this paper can satisfy the guidelines, reduce server costs, and reduce system complexity.

• Convergence Security Journal
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• v.19 no.5
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• pp.37-45
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• 2019

Video security systems change from analog based systems to network based CCTVs. Therefore, such network based systems are always exposed not only to threats of eavesdropping and hacking, but to personal damage or public organizations' damage due to image information leakage. Therefore, in order to solve the problem, this study conducts a comparative analysis on proposes the optimal ECC(Elliptic Curve Cryptography) scalar multiplication algorithms for image information protection in data communication process and thereby proposes the optimal operation algorithm of video security system.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.11a
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• pp.900-902
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• 2012

자치단체를 대상으로 영상정보자원의 통합 관리를 목적으로 통합관제센터 구축 사업이 활발히 진행되고 있다. 자치단체의 영상정보자원을 효율적으로 통합 관리할 수 있는 통합관제센터 인프라가 본격적으로 구축됨으로써 영상정보자원의 효율적 통합 관리를 위한 정책적 선행과제 발굴이 시급한 상황이다. 국가영상정보자원의 통합 관리 기반을 조기에 마련하기 위해 자치단체의 영상정보 통합관리 체계가 구축되어야 한다. 본 논문에서는 자치단체 영상정보자원 통합관리 체계 구축을 위한 선행과제를 정책 수립, 인프라 조성, 서비스 적용, 법제도 지원 관점에서 제시하고자 한다. 본 연구를 통하여 정부에게는 국가영상정보자원의 통합관리를 위한 정책과제 발굴에 대한 방향성을 제시하는데 도움을 줄 수 있고, 자치단체에게는 통합관제센터의 구축 및 운영을 위한 가이드라인을 제공해 줄 수 있을 것이라 기대한다.

• Convergence Security Journal
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• v.17 no.5
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• pp.49-55
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• 2017

In case of security of IoT-based areas in ICBM industry, the anxiety about safety goes to extremes in public and national safety area, so that the demand for security service related to disaster/safety management is increasing. Like this, as a security service for safety, CCTVs are installed/operated for the purpose of maintenance of public order and crime prevention. Especially, as the recorded images are presented as crucial evidences of crimes, they are rapidly increasing. However, as adverse effects of CCTVs, it is highly possible to unintentionally leak personal information in the process of performing the original purpose, or to violate someone's privacy in case when such technologies are abused. Therefore, it would be necessary to have researches on the multilaterally-combined mechanism for the protection of image privacy.

• Proceedings of the Korean Society of Computer Information Conference
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• 2020.07a
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• pp.667-668
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• 2020

최근에는 범죄예방과 시설물 안전 및 출입관리, 화제예방 등 다양한 목적으로 감시카메라(CCTV)가 널리 보급되어 공공기관이나 상업시설 등 어느 곳에서나 찾을 수 있다. 이렇듯 많은곳에서 저마다의 이유로 사용되고 있는 감시카메라지만, 가장 흔하게 사용되는 이유는 범죄예방에 있다. 시설 내·외부에 감시카메라를 설치하여 도난사건 등을 사전에 방지하고 사후 증거확보에 유용하게 쓰일 수 있기 때문인데 문제는 감시카메라를 통해 사건을 사전에 방지하기 위해서는 실시간으로 사람이 카메라 영상을 지켜보고 있어야 한다. 하지만 사람이 항상 감시할수있을수는 없기 때문에 예방보다는 사후 증거확보를 위해 사용되는 실정이다. 즉 대부분의 감시카메라가 본래의 역할에 절반밖에 하지 못하고 있다는 것이다. 본 과제는 이러한 문제점을 해결하기 위해 감시카메라 자체의 기능을 추가하여 감시카메라가 인력을 필요로 하지않고 스스로 본래의 역할을 다할수있게 할 것이다.