• Proceedings of the KAIS Fall Conference
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• 2011.05a
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• pp.239-242
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• 2011

기존 CCTV는 대부분 방범을 목적으로 많이 쓰인다. 이러한 CCTV는 과거엔 대부분 아날로그 방식이었으나 CCTV에 IP를 부여하고 Network화가 되면서 CCTV가 웹상의 위협에 노출이 되었다. CCTV영상이란 사생활 관련 영상이며 이러한 영상이 불특정 다수에 노출되어 있다는 건 충분히 민감한 문제라 할 수 있다. 본 논문에서는 CCTV의 네트워크화로 인해 발생한 취약점을 분석 및 보안하였다. 또한 CCTV영상 유출을 미연에 방지하기 위한 RTSP 사용자 인증 프로토콜을 제안한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2020.07a
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• pp.445-446
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• 2020

최근 사물인터넷의 발전에 따른 많은 기기들이 디지털화 되면서 네트워크의 새로운 주요 장비로 등장하고 있으며 이 중 CCTV의 경우 대부분 IP를 갖는 독립적인 네트워크 디바이스가 되고 있다. 하지만 이러한 CCTV의 네트워크 접근에 따른 해킹 가능성이 끊임없이 제공되면서 CCTV를 통한 내부망의 침투가 현실적으로 가능한 상황이다. 현재 대부분의 영상 화면이 암호화되어 운영되고는 있지만 CCTV를 통제하는 제어 데이터는 어떠한 보안조치도 이루어지지 않은 것이 현실이다. 이러한 점을 보완하기 위해 면에서 본 논문에서는 CCTV 통제를 위한 제어 데이터도 인증 및 암호화를 통해 일반적인 접근을 완전히 차단할 수 있는 방안을 제시하고 이를 통한 사물인터넷의 안정성을 검증하는 방안을 제안하고자 한다.

• 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.

• Journal of Broadcast Engineering
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• v.21 no.6
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• pp.986-994
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• 2016

In this paper, a digital closed-circuit television (CCTV) transmission system called the extended reach high definition serial digital interface (ER-SDI) is proposed to increase the transmission distance while preserving the quality using digital modulation. The current standard of HD-serial digital interface (HD-SDI) has the maximum transmission distance of 200 m. Recently, one system which transforms the digital signal to an analog signal and modulates color signal to extend the transmission distance is proposed. Another system which uses IP network is also proposed. However, the former system has a disadvantage of video quality and the latter system has high latency. The proposed ER-SDI is designed to extend the transmission distance of 518 m by adopting multilevel constellations and a channel code for a data rate of 1.485 Gbps. The maximum transmission distance of the proposed system is calculated using the specification of HD-SDI and the experiment result under coaxial cable environment.

• 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.

• Bulletin of the Society of Naval Architects of Korea
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• v.50 no.3
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• pp.56-64
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• 2013

• The Journal of Korean Institute of Communications and Information Sciences
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• v.30 no.7B
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• pp.464-468
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• 2005

The DVR industry has been grown with their own, proprietary systems without the need of standards because the security products are independently installed in small scale and the communication needs are very limited. The industry might have tighter security than having standardized products, but the appearance of IP surveillance and the need of communications with IP products such as IP Phones and IP-PBX made the standardization unavoidable. In this paper, we built an IP surveillance system with SIP based session control and investigated the applications of it other than the security itself.

• KIPS Transactions on Computer and Communication Systems
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• v.12 no.3
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• pp.111-118
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• 2023

Cyber attacks are increasing worldwide, and attacks on personal privacy such as CCTV and IP camera hacking are also increasing. If you search for IP camera hacking methods in spaces such as YouTube, SNS, and the dark web, you can easily get data and hacking programs are also on sale. If you use an IP camera that has vulnerabilities used by hacking programs, you easily get hacked even if you change your password regularly or use a complex password including special characters, uppercase and lowercase letters, and numbers. Although news and media have raised concerns about the security of IP cameras and suggested measures to prevent damage, hacking incidents continue to occur. In order to prevent such hacking damage, it is necessary to identify the cause of the hacking incident and take concrete measures. First, we analyzed weak account settings and web server vulnerabilities of IP cameras, which are the causes of IP camera hacking, and suggested solutions. In addition, as a specific countermeasure against hacking, it is proposed to add a function to receive a notification when an IP camera is connected and a function to save the connection history. If there is such a function, the fact of damage can be recognized immediately, and important data can be left in arresting criminals. Therefore, in this paper, we propose a method to increase the safety from hacking by using the connection notification function and logging function of the IP camera.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2016.06a
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• pp.381-383
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• 2016

본 논문에서는 영상보안시스템을 구성하는 장비 간의 상호연동 적합성을 평가하는 방법과 분석 결과를 제시한다. 꾸준한 성장세를 보이고 있는 영상보안시스템 분야는 기존의 아날로그 CCTV(Closed Circuit TeleVision) 체계 대신 네트워크 인터페이스 기반의 시스템으로 변화하고 있다. 이에 따라 IP(Internet Protocol) 기반의 네트워크 환경에서 장비 간 연동을 위해 국제적으로 ONVIF(Open Network Video Interface Forum), PSIA(Physical Security Interoperability Alliance)와 같이 여러 CCTV 제조사들이 모인 산업계 포럼에서 장비 간 상호호환성을 위해 인터페이스 프로토콜을 정의하고 자체 표준화를 주도하고 있다. 이에 본 논문은 TTA에서 국내 영상보안시스템의 상호운용성을 위해 개발한 ONVIF 기반의 상호연동 인증 기준을 기반으로 영상보안시스템 장비 중 하나인 IP 카메라와 NVR(Network Video Recorder)에 대해 상호연동 적합성을 평가하는 방법을 설명하고 분석 결과를 제시한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2007.11a
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• pp.513-515
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• 2007

본 연구에 구축한 실시간 광역 교통 정보시스템은 도심지내의 간선도로 및 교차로에대한CCTV 교통감시 카메라를 이용하여 교통관제센타에서 동영상에의한 교통감시와 실시간 교통정보를 수집하는 시스템으로서 도로현장의 CCTV 감시카메라와 광통신장비, 센타의 영상검지기 및 VDS Sever컴퓨터 시스템과 동영상표시 Color Monitor로 구성 되어 있는 IP Surveillance 시스템 체계를 제시하고자 한다.