• Proceedings of the Korean Information Science Society Conference
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• 2010.11a
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• pp.171-172
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• 2010

• Journal of Korean Library and Information Science Society
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• v.51 no.3
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• pp.53-80
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• 2020

Library Week was established in 1964 and has continued without interruption for 56 years. It has grown to become one of the largest and most important activities within the library field today. The Korean Library Association publicly selects slogans to be used for Library Week publicity purposes and their poster advertising campaign. A study and evaluation analyzing slogan contents was performed to determine the overall effects of these slogans on the public and provide suggestions for more effective and focused slogans as part of a branding strategy. To achieve this purpose, the contents of 116 official slogans of the library week were analyzed according to the linguistic techniques and key words suggested by Young-Jun Park (2001). As a result, there were 103 slogans (88.79%) composed of only 'Korean characters'. And the key scoring type with the highest number of hits was the word 'sentences' 46 units (39.66%). Furthermore the word in the slogans resulting in the highest number of hits was 'library' with 111 units (96.52%). Therefore, it can be said that most of the weekly slogans of the library are 'sentence type' consisting of 'Korean characters' containing the word 'library'.

• Proceedings of the Optical Society of Korea Conference
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• 2002.07a
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• pp.216-217
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• 2002

액정표시소자(Liquid Crystal Device)가 흑백의 문자표시소자로 개발된 이래로, 설계 기술 및 제조기술의 발전으로 그 응용분야도 현저히 확대퇴고 있다. 그 응용분야 가운데 노트북 컴퓨터, 휴대전화, IMT-2000, 전자책(e-book)등 최근 현저한 진보를 보이고 있는 정보통신기기들은 그 휴대성 때문에 좀더 가볍고, 얇으며, 소비전력이 적은 디스플레이 소자를 요구하고 있다. 이러한 조건을 만족시키기 위해 무겁고 전력소모가 많은 배면조명을 사용하지 않는 반사형 액정표시소자 연구가 활발하다. (중략)

• Electronics and Telecommunications Trends
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• v.14 no.1 s.55
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• pp.97-98
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• 1999

차세대 멀티미디어 휴대 단말인 핸디콤비는 "핸드헬드 콤비스테이션(Handheld ComBiStation)"의 약자로서 인터넷상에서 다양한 멀티미디어 응용서비스를 어디서든지 쉽게 이용할 수 있는 휴대형 컴퓨터 비서이다. 음성인식 처리나 멀티미디어 데이터 저장, 검색 등과 같이 복잡한 계산이나 방대한 양의 정보 저장과 처리는 서버의 도움을 받아 다양한 멀티미디어 응용 프로그램을 핸디콤비에서 이용할 수 있으며, 한글-영문문자 인식과 펜 제스처 등과 같은 지능형 사용자 인터페이스를 제공하여 사용자들에게 최대의 편의성을 제공한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2008.05a
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• pp.337-342
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• 2008

최근 들어 기존의 녹색 바탕 차량 번호판에서, 흰색 바탕의 신 차량 번호판으로 교체되고 있다. 하지만 아직 기존 차량 번호판이 신 차량 번호판으로 전면 교체되지 않아 두 번호판 모두 사용되고 있다. 따라서 주차관리 시스템, 속도위반, 신호 위반 등 무인 카메라를 이용한 시스템에서, 기존 차량 번호판과 신 차량 번호판의 특징에 맞는 인식 시스템이 요구된다. 본 논문에서는 이러한 문제를 해결하기 위해 기존 차량 번호판과 신 차량 번호판을 통합한, 지능형 차량 번호판 인식 시스템을 제안한다. 무인 카메라에서 획득된 차량 영상에서 번호판의 색상 정보를 이용하여 기존 차량 번호판과 신 차량 번호판을 구분한다. 기존 차량 번호판인 경우에는 HSI 컬러 공간을 이용하여 이진화를 적용하며, 신 차량 번호판인 경우에는 블록 이진화를 적용한다. 이진화된 영상을 대상으로 차량의 형태학적 특징을 이용하여 잡음을 제거한 후, 차량 번호판 영역을 추출한다. 추출된 차량 번호판 영역에 대해 Labeling 알고리즘을 적용하여 개별 문자를 추출한다. 추출된 개별 문자는 FCM 알고리즘을 적용하여 인식한다. 제안된 차량 번호판 추출 및 인식 방법의 성능을 평가하기 위해 160장의 기존 차량 영상과 100장의 신 차량 영상을 대상으로 실험한 결과, 제안된 차량 번호판 추출 및 인식 방법이 실험을 통해서 효율적인 것을 확인하였다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.3
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• pp.634-640
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• 2013

Existing patterns and database search, string search unit search results for a lot of false positives, a simple search technique unreliable. In addition, the same conditions in addition to other search methods implemented due to wasted of resources and enforcement have been causing a waste of time. Therefore, regular expression and correlation analysis method by applying an integrated linkage information search module is to develop in this paper. From this, existing string search technique that has been noted as a problem by reducing the economic impact false positive and reliability to develop method that will information search secure.

• Convergence Security Journal
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• v.12 no.1
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• pp.63-70
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• 2012

Recently, as the smart phone market grows explosively, there exists a large difference of utilization of the smart phone between an usual people and the visually impaired people. In this paper, We propose the character and numer ic input system based on the low cost of braille film and braille for the visually impaired people in order to reduce to information literacy gap for the visually impaired people. The proposed system is designed with the braille film and keyboard layout based on the braille character layout. Additionally, the telephone, the SMS, the abbreviated dial and location transfer function for the emergency situation are designed. The character which inputs using the braille keyboard can be automatically copied in the clip board and used in the other applications. Hence, the visually impaired people can easily use the smart phone for getting plentiful information on the device and network.

• The Journal of the Korea Contents Association
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• v.11 no.12
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• pp.122-135
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• 2011

Mobile spam message is a harmful factor which makes receivers to be annoyed and leads to unnecessary social cost. Unwanted junk messages flowing to a smart phone ruin main purpose of the smart work system to enhance the productivity, so we need to study on this area. In this paper, we proposed a novel spam filter on the smartphone in order to reduce computing process and improve the accuracy rate by feedback of error results to a training sample set. As the spam classifier operates on the smartphone independently with training on only user's received data, it could reflect user preference. The authorized personal computer takes on heavy works, such as preprocessing, feature selecting and training process, and the smartphone takes on light works to block junk messages. Experimental results showed reasonable accuracy rate of over 95%, and we found that the application occupied constant computing resources while running on the phone.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.10 no.4
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• pp.680-686
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• 2006

Document images captured by scanners have only skewing distortion. But camera captured document images have not only skew but also vignetting effect and geometric distortion. Vignetting effect, which makes the border areas to be darker than the center of the image, make it difficult to separate characters from the document images. But this effect has being decreased, as the lens manufacturing skill is developed. Geometric distortion, occurred by the mismatch of angle and center position between the document image and the camera, make the shape of characters to be distorted, so that the character recognition is more difficult than the case of using scanner. In this paper, we propose a method that can increase the performance of character recognition by correcting the geometric distortion of document images using a linear approximation which changes the quadrilateral region to the rectangle one. The proposed method also determine the quadrilateral transform region automatically, using the alignment of character lines and the skewed angles of characters located in the edges of each character line. Proposed method, therefore, can correct the geometric distortion without getting positional information from camera.

• The Journal of the Korea Contents Association
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• v.8 no.11
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• pp.33-40
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• 2008

The application of OCR moves from traditional formatted documents to the web document and natural scene images. It is usual that the new applications use not only standard fonts of Myungjo and Godic but also various fonts. The conventional databases which have mainly been constructed with standard fonts have limitations in applying to the new applications. In this paper, we generate 243 image samples for each of 2350 Hangul character classes which differs in font size, quality, and resolution. Additionally each sample was varied according to binarization threshold and rotational transformation. Through this process 2187 samples were generated for each character class. Totally 5,139,450 samples constitutes the printed Hangul character database called the PHD08. In addition, we present the characteristics and recognition performance by an commercial OCR software.