• Proceedings of the Korea Information Processing Society Conference
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• 2012.11a
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• pp.969-972
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• 2012

기존의 CCTV와는 달리 IP Camera는 네트워크에 유선 또는 무선으로 직접 연결되며 IP Camera에 임베디드된 웹 서버를 통하여 서비스를 제공한다. 한 건물 또는 지역 안에는 다수의 IP Camera가 설치될 수 있다. 이때 각 각의 IP Camera에 웹 서버가 존재하기 때문에 웹서버 마다 다른 key를 가지고 관리하게 되어 서버 관리에 있어서 비효율적이다. 또한 단순 ID, Password로 사용자 인증을 하며 별도의 암호화 과정을 거치지 않기 때문에 취약점을 갖는다. 따라서 본 논문에서는 그룹 키를 이용하여 다수의 웹 서버의 키를 관리하고 PKI 암호를 통하여 사용자 인증 및 세션 키를 생성함으로써 위장 공격, 기밀성, 무결성, 재사용 공격 등의 보안 취약점을 강화한다.

• Journal of Korea Society of Industrial Information Systems
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• v.12 no.4
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• pp.148-152
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• 2007

This paper develops an integrated optic transmitter/receiver based on ring-type WDM PON. The optic transmitter/receiver can transmit real-time images from the CCTV of a remote street without compression and transmit TCP/IP data using an optic fiber. This system can also perform remote controls of the CCTV camera. The developed optic transmitter/receiver can provide the monitoring service of an advanced image quality of remote traffic using a broadband technology.

• Proceedings of the Korean Information Science Society Conference
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• 2003.10c
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• pp.244-246
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• 2003

현재 정부기관이나 은행 등과 같이 침입 탐지의 보안 서비스를 필요로 하는 곳에서는 주로 CCTV(Closed Circuit TV)와 DVR(Digital Video Recording)과 같은 보안 장비들이 사용되고 있다. 하지만 이러한 장비들은 고가이므로 일반 가정이나 소규모 사업장에 이를 도입하는 것은 어렵다. 이에 본 논문에서는 CCTV나 DVR과 같은 고가의 보안 장비를 저렴하게 대체할 수 있는 인터넷 카메라를 이용한 침입탐지 시스템인 IDS(Intrusion Detection System)를 설계 및 구현하였다. IDS는 침입 탐지 보안 시스템이 기본적으로 갖춰야 하는 모니터링, 녹화, 재생. 침입 탐지 등의 기능을 제공할 뿐만 아니라 인터넷을 이용하므로 거리상의 제약점을 극복하였으며, TCP/IP를 이용한 인터넷 카메라를 사용하여 CCTV나 DVR보다 매우 저렴하게 설치 가능하다.

• Proceedings of the KIEE Conference
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• 2007.07a
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• pp.1187-1188
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• 2007

Most of the surveillance systems are based on CCTV, closed circuit Television. A surveillance system for urban transit is also based on CCTV. Urban transit operation corporations have a CCTV system and a lot of cameras to monitor the situation for the passengers, and the important facilities. But this system has some problems that it cannot respond to a state of emergency immediately. In this paper, we describe a configuration of an intelligent surveillance system for urban transit to solve that problems. Our proposed configuration include a camera with some intelligent module, and a processor to integrate various data from not only cameras, but also sensors such as a temperature sensor, a heat sensor, sound sensor and etc. and some other data generator. This system configuration can decide the state of the passengers and the facilities. The surveillance system with this configuration can available with the existing surveillance system without a considerable improvement.

• Journal of Internet Computing and Services
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• v.12 no.2
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• pp.123-133
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• 2011

This paper introduces security problems on the video surveillance systems where the network cameras are equipped at remote places and isolated from the updated and secure environment and proposes a framework for a proxy server that is delegated to connect to network cameras by providing a secure connections from the clients. The server in the framework is deployed within a secure network, secretes the information for connection to cameras and authenticates the clients. Additionally, it provides a secure video service incorporating multi-level privileges for both images and clients through a encryption key distribution and management facility. Through an implementation of the server and a its deployment, it was proved that In this server implement to multi network camera and we confirm compare direct access to network camera equal video quality of service and it can be protection network camera. We expect that can be secure and integral management about traditional network camera through experimental result.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.24 no.1
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• pp.97-106
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• 2014

CCTV(Closed Circuit television) is one of the widely used physical security technologies and video acquisition device installed at specific point with various purposes. Recently, as the CCTV capabilities improve, facial recognition from the information collected from CCTV video is under development. However, in case these technologies are exploited, concerns on major privacy infringement are high. Especially, a computer connected to a particular space images taken by the camera in real time over the Internet has emerged to show information services. In the privacy law, safety measures which is related with biometric template are notified. Accordingly, in this paper, for the protection of privacy video information in the video surveillance system, the technical and managerial requirements for video information security are suggested.

• The Journal of the Korea institute of electronic communication sciences
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• v.9 no.6
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• pp.665-671
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• 2014

Recent researches show that the traffic fatality rate in fog is higher than that in rain and snow. In that sense, methods to measure visibility accurately and to notify the measured visibility information to drivers are required. We thus developed a system for measuring the road visibility in realtime by employing CCTV cameras. In this paper, we also propose a wide-area visibility information system through measuring the visibility of every highway by using the developed system. The proposed wide-area visibility information system uses the video clips from the CCTV camera instead of the output from the expensive fog sensor. Hence, we expect that it can reduce the cost of installation and operation dramatically and the measured visibility information has a number of applications.

• Journal of Navigation and Port Research
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• v.31 no.9
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• pp.779-784
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• 2007

This paper describes a new progressive embedded Internet Protocol(IP) camera available for real-time image transmission. It was applied for ship safety and security on seashore area. The functions of developed embedded system was more effective and excellent than conventional systems. Nowadays, each nation has established harbor security systems to jump up their ports to international port. Recently Incheon port has tried to change man security into center security system used by image security system. The security system of Incheon port has some advantages like effectivity of security system and reduction of manpower and cost, installed by image security system with CCTV cameras at the entrance gate and around the fence. Thus in this paper, we have designed and implemented a Personal Digital Assistants(PDA) based Image Surveillance System for Harbor Security using IP Camera under ubiquitous environment. This system has big advantages which are more effective in an emergency and low cost and small manpower than conventional systems.

• Proceedings of the Korea Society of Information Technology Applications Conference
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• 2007.05a
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• pp.1-8
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• 2007

본 논문은 저해상도와 많은 노이즈를 갖는 일반 CCTV의 입력 영상에서 실시간으로 움직이는 물체를 검출하고 그 물체의 움직임을 추적하는 방법을 제안 한다. 본 논문은 CCTV영상으로부터의 입력 영상을 순차를 갖는 명암도 영상으로 실시간 변환 하여 진행 한다. 움직이는 물체의 추출은 첫째, 획득한 영상의 그레이 영상을 포스터라이징을 이용하여 명암 분포를 축소하고 차영상을 통해 윤곽을 추출한다. 둘째, 본 논문이 제안하는 영역 단위 이진화를 통해 이진화와 잡음의 제거를 동시에 수행한다. 셋째, 손실된 정보의 보정을 위해 이진 영상의 팽창을 수행한다. 넷째, 이진 영상의 가로/세로 명암 밀도 분포를 통해 움직이는 물체 영역을 검출한다. 검출된 물체의 추적은 현 재 프레임의 물체 영역과 이전 프레임의 물체 영역의 중심을 계산한 후, 두 중심의 거리 차를 계산한다. 계산된 거리가 임계값보다 작을 경우 같은 물체로 인식하고 계속 추적하며, 임계값 이상의 값일 경우 새로운 물체로 인식한다. 추적된 이동물체의 중심점이 화면의 중앙 부분에 있지 않을 경우, 이동물체의 중심으로 카메라의 방향을 조정한다. 실험결과, 제안한 방법으로 저해상도와 많은 노이즈를 갖는 일반 CCTV 의 입력 영상에서도 실시간으로 움직이는 물체를 검출하고, 그 물체의 움직임을 추적 할 수 있었다.

• The Journal of the Korea institute of electronic communication sciences
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• v.7 no.5
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• pp.967-974
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• 2012

In this paper, a vehicle detection algorithm with HD CCTV camera images using GMM(Gaussian Mixture Model) algorithm and mathematical morphological processing is proposed. At the first stage, background could be estimated using GMM from CCTV input image signal and then object could be separated from difference image of the input image and background image. At the second stage, candidated object were reformed by using mathematical morphological processing. Finally, vehicle object could be detected using vehicle size informations depend on distance and vehicle type in tunnel. Through real experiments in tunnel, it is shown that the proposed system works well.