• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2006.05a
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• pp.792-795
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• 2006

In this paper, we propose a method of vehicle license plate recognition on PDA for illegal parking car regulation. we classified three kinds of vehicle license plates being used down to date since the introduction of each vehicle license Plate using features of each one. And we recognized vehicle license plates segmentation the AreaName, the AreaCode, the TypeCharacter and the Numbers. A 88.7% recognition accuracy was obtained through the experiment of the proposed vehicle license plate recognition system using the obtained images of PDA.

• The KIPS Transactions:PartB
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• v.9B no.5
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• pp.517-522
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• 2002

Mobile agent systems offer a new paradigm for distributed computation and a one of solution for limitation of existent Client-server model. Mobile agent systems provide interface that can migrate from host to host in a heterogenous network. For secure execution, it must solve security problem of mobile code before. In this paper, we are propose the protocol that applied signature technique and hash chain technique. This protocol enable one to offer forward integrity, non-repudiation, and forgery detection, when mobile agents are perform the task by migrating a network.

• The KIPS Transactions:PartD
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• v.11D no.2
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• pp.471-478
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• 2004

This paper describes the plagiarism inspection supporting system of typical cultural contents or properties such as game programs, cultural contents of natural language documents and art works and proposes the cultural contents the plagiarism inspection supporting system For this, firstly, a survey of plagiarism inspection methods and tools for supporting Plagiarism inspection about programs, cultural contents of natural language documents are discussed. Secondly, the technical method for supporting plagiarism inspection of cultural art works by analyzing the drawing characteristics of authors is proposed. Finally, the experimental results show the effectiveness of this paper.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.12 no.3
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• pp.563-568
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• 2008

We present a method to implement an $M{\times}N$ switching system by use of an $M{\times}1$ multimode planar waveguide and N hologram filters. The $M{\times}1$ multimode planar waveguide provides the pass of optical signals and changes the output speckle patterns by applying an electrical signal. The complex speckle patterns generated from the multimode planar waveguide are recorded into the N hologram filters and used as the code for destination. The feasibility of our method is experimentally demonstrated.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.11 no.6
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• pp.1083-1088
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• 2007

In this paper, We investigate the search patterns that are applied to the character based word search and make the search algorithm. We used to various hangout coded set that are KS X 1001 hangeul coded set and unicode 3.0 for the character based word search algorithm. In each case, We study of efficiency of algorithms that are related to hangeul coded set.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.12 no.10
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• pp.1883-1889
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• 2008

In order to realize future ubiquitous, it needs to establish an environment witch service is provided to an user without user's awareness. This study suggests the mobile context awareness algorithm for that. With DB collected using LBS technology, it aims to recognize service status of a terminal and to maximize user's convenience by offering service through continuous inter-operability for various demand and environment of users against the status of a terminal. To realize the algorithm, it adds a terminal status deduction process to MSC. And then, it suggests the algorithm witch determines terminal status depending on status parameter defined by analyzing LBS-based short information by MSC. It realize C code.

• Convergence Security Journal
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• v.18 no.3
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• pp.27-35
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• 2018

The certificate is electronic information issued by an accredited certification body to certify an individual or to prevent forgery and alteration between communications. Certified certificates are stored in PCs and smart phones in the form of encrypted files and are used to prove individuals when using Internet banking and smart banking services. Among the rapidly growing Android-based malicious applications are malicious apps that leak personal information, especially certificates that exist in the form of files. This paper proposes a method for judging whether malicious codes leak certificates by using DroidBox, an Android-based dynamic analysis tool.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.19 no.2
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• pp.97-102
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• 2019

The GNSS(Global Navigation Satellite System) provides important information such as Position and Navigation, Timing(PNT) to various weapon systems in the military. as a result, applications that employ satellite navigation systems are increasing. therefore, a number of studies have been conducted to deceive the weapon systems that employ GNSS. GNSS spoofing denotes the transmission of counterfeit GNSS-like signals with the intention to produce a false position and time within the victim receiver. In order to deceive the victim receiver, spoofing signal should be synchronized with GNSS signal in doppler frequency and code phase, etc. In this paper, Civilian GPS L1 C/A spoofing signals have been evaluated and analyzed by SDR receiver.

• 기호학연구
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• no.54
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• pp.37-63
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• 2018

In this study, we tried to represent representative animals in traditional dance and study about cultural symbolic representations that symbolize them, thus meaning Korean worship of animal worship and philosophy of life and discuss the identity of Korean traditional art. This is to ask fundamental questions about Korean culture and art, and to express the cultural philosophical reason for the representation of animal imitation. Therefore, Korean animal imitation dance was able to get a glimpse of Koreans' recognition of artistic value which is reflected in dance beyond simple cultural code. In other words, it was found that not only magic and sexual metaphors but also the adaptive attitude through natural friendly life and the ethical practice in reality were inspired by artistic aesthetics.

• Journal of the Korea Society of Computer and Information
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• v.26 no.2
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• pp.39-44
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• 2021

In this paper, we propose a method of disease diagnosis system that can diagnose the health status of household pets for the people who lack veterinary knowledge. The proposed diagnosis system holds 50 different kinds of diseases with the symptoms for each of them as a database to provide results from symptom input. Each disease database has its own symptom codes for a disease, and by using the disease database, FCM clustering technique is applied to disease which outputs membership degree to determine diseases close to the input symptom as a pet diagnosis result. The implementation results of the proposed pet diagnosis system were obtained by the number of selected symptoms and the possibility values of the diseases that have the selected symptoms being sorted in descending order to derive top 3 diseases closest to the pet's symptom.