• Journal of Korea Multimedia Society
• /
• v.12 no.10
• /
• pp.1418-1426
• /
• 2009

There has been a lot of interest in an effective method for background subtraction in an effort to separate foreground objects from a predefined background image. Promising results on background subtraction using statistical methods have recently been reported are robust enough to operate in dynamic environments, but generally require very large computational resources and still have difficulty in obtaining clear segmentation of objects. We use a simple running-average method to model a gradually changing background, instead of using a complicated statistical technique. We employ a single global threshold vector, optimized by a genetic algorithm, instead of pixel-by-pixel thresholds. A new fitness function is defined and trained to evaluate segmentation result. The system has been implemented on a PC with a webcam, and experimental results on real images show that the new method outperforms an existing method based on a mixture of Gaussian.

• Cartoon and Animation Studies
• /
• s.38
• /
• pp.115-132
• /
• 2015

An animation is a tool to represent the consciousness of an author. It is a medium that converts his/her consciousness to time by the means of spaces. Image is the most inherent element among the elements of an animation. Character is the element that has the very core function among the elements of an image because a character is a shape that can deliver a story through various actions and facial expressions. In this context, is a representative satire animation that describes a ranked and unequal human society and selfishness and absurdity of human beings existed in the human society, based on the original work of George Orwell. Therefore, this study aims to study what the work tries to satirize through the meanings and symbols that the characters, animals, and spaces in the work. As a result of the study, it was found that the characters appeared in the work are metaphoric symbols that imply the meanings of each character, not just simple characters or spaces. In the work, the farm is a symbolic space that symbolizes a human world. John, a human being, is described as a dictator in an absolute Russian monarchy who suppresses people. Old Major, a pig, is described as an old pioneer that preaches the appropriation of a revolution while Snow Ball, a pig that follows the Major is described as a naive leader that dreams to establish a real socialist state where everybody lives equal, through successful revolution. Another pig, Napoleon is described as the more greedy dictator than human being. He killed Snow Ball for his private ambition and suppresses and exploits the same race, animals. That is, setting man and various animals in the relation of dominant class and subordinated class, the author generates conflicts among characters. Although the characters pursue an ideal society through revolution, it requires another revolution in the process, which expresses repetitive contradiction of human history in a symbolic and strong way.

• Journal of Korea Multimedia Society
• /
• v.12 no.7
• /
• pp.893-902
• /
• 2009

Many People are collecting and managing variable information(Image, Graphic, Animation, Text, music files etc.) about personal interests and holding them in common. Most users are using Microsoft Explorer to make a folder and classify many files. but It's difficult to understand the relation of the data instinctively. To resolve this problem, we adopt information visualization method (especially tree-graph control interface). We suggest an interface that all user can drawing a Graph easily and rapidly. So user can see the relations of their data instinctively and control the relation directly with our sketch-based interface.

• Journal of Satellite, Information and Communications
• /
• v.11 no.3
• /
• pp.18-23
• /
• 2016

Internet of things (IoT) is revolutionizing in the patient-Centered medical monitoring and management by authorizing the Smartphone application and data analysis with medical centers. The network connectivity is basic requirement to collect the observed human beings' health information from Smartphone to monitor the health from IoT medical devices in personal healthcare. The IoT environment built in Smartphone is very effective and does not demand infrastructure. This paper presents the smart phone deployed personal IoT architecture for Non-Invasive ECG Capturing. The adaptable IoT medical device cum Gateway is used for personal healthcare with big data storage on cloud configuration. In this approach, the Smartphone camera based imaging technique used to extract the personal ECG waveform and forward it to the cloud based big data storage connectivity using IoT architecture. Elaborated algorithm allows for efficient ECG registration directly from face image captured from Smartphone or Tablet camera. The profound technique may have an exceptional value in monitoring personal healthcare after adequate enhancements are introduced.

• Journal of Intelligence and Information Systems
• /
• v.24 no.4
• /
• pp.85-110
• /
• 2018

A chatbot is an interactive assistant that utilizes many communication modes: voice, images, video, or text. It is an artificial intelligence-based application that responds to users' needs or solves problems during user-friendly conversation. However, the current version of the chatbot is focused on understanding and performing tasks requested by the user; its ability to generate personalized conversation suitable for relationship-building is limited. Recognizing the need to build a relationship and making suitable conversation is more important for social chatbots who require social skills similar to those of problem-solving chatbots like the intelligent personal assistant. The purpose of this study is to propose a text analysis method that evaluates relationships between chatbots and users based on content input by the user and adapted to the communication situation, enabling the chatbot to conduct suitable conversations. To evaluate the performance of this method, we examined learning and verified the results using actual SNS conversation records. The results of the analysis will aid in implementation of the social chatbot, as this method yields excellent results even when the private profile information of the user is excluded for privacy reasons.

• The Korean Journal of Archival Studies
• /
• no.21
• /
• pp.117-167
• /
• 2009

Assemblypersons' activities have organizational and individual nature. The activities of assemblypersons and their assistant staffs become a motive for major work performance of Korean legislature, and are also critical public services affecting contemporary political history, history of political parties and history of assemblyperson's hometown. Moreover, their activities are also characterized by work performance in favor of assemblyperson's personal interests to effectively communicate his or her achievements during term of office to electors with a view to winning reelection after the end of 4-year term of office. Assemblyperson's organization produces various types of record in the performance of these works. From the viewpoint of public archive as a product of assemblypersons' public service performance and from their own personal viewpoints, they can create their own identity by arranging their personal records that can demonstrate their own political philosophy, policy orientation, achievements during term of office, and personal features. In addition, their personal records can have much more values and significance in the sense that those records are available to electors to make it possible to highlight their own images in objective and reliable manner. Conclusively, this study underlined that the efforts for assemblypersons and their assistant staffs to keep their records well could be helpful to streamline their internal works and be also helpful for personal interests of assemblypersons. And this study proposed procedures and methods for deducing and screening a list of production archives to meet a viewpoint of streamlined internal works and needs for keeping personal records, ultimately with a view to giving practical helps for these works.

• Proceedings of the Korean Information Science Society Conference
• /
• 2007.06d
• /
• pp.356-360
• /
• 2007

인터넷이 폭 넓게 보급되어 개인의 의견을 개진할 기회가 확대됨에 따라 정치, 경제 등의 사안이나 제품 기업의 이미지, 공인에 대한 긍정.부정의 글을 개진할 수 있게 되었다. 이러한 현상에 따라 기업, 제품, 혹은 공공의 분야에서 일반 개인들이 어떻게 생각하는가에 대한 분석 및 자료수집의 필요성이 높아지고 있다. 감성용어 문서분류시스템은 문서의 내용 중 감성기반의 용어들에 기반하여 이에 대한 패턴을 정의하고 이에 대응하는 범주에 문서를 자동으로 할당하는 작업으로써 효율적인 정보 관리 및 검색을 가능하게 한다. 하지만 자동문서 분류를 하기 위해서는 방대한 양의 데이터를 수집 보관하기 위한 분산 환경이 반드시 필요하다. 본 논문에서는 감성기반 문서분류 시스템을 위한 감성용어 추출 및 긍정, 부정의 패턴을 검색해 자동 문서분류를 위해 RTI(Run Time Infrastructure)를 통한 분산 시스템 환경으로 구성하였다.

• Review of KIISC
• /
• v.22 no.3
• /
• pp.25-36
• /
• 2012

기존 불법유해정보 분류체계를 비교 분석하여 재정립하고, 국내외 불법유해정보 법 제도 현황을 살펴 보았다. 이와 함께 불법유해정보 접근 차단 방안에 대한 이용자 설문 결과를 기초로 불법유해정보 차단에 대한 정책적 제언을 다음과 같이 제시하고자 한다. 먼저 기존 유해정보차단 프로그램의 문제점인 메모리 사용량 증가에 따른 컴퓨터 성능 저하현상을 개선할 수 있는 기술적인 대책이 마련되어야 하며, 청소년 이용자의 보호자 또는 학부모가 사이트별로 제한할 수 있는 기능을 추가하여 다중 필터링 시스템 환경을 조성해야 한다. 또한 기존의 불법유해정보 신고 프로그램은 신고주소, 신고제목, 증거자료 입력 등 복잡한 구성으로 인해 효율성이 떨어지므로, 신고를 원하는 사이트를 이미지화 하여 바로 저장 및 전송이 가능한 형태로 신고 프로그램을 제작하여 신고완료까지의 시간을 단축해야 할 것이다. 기존의 주민등록번호 입력 방식에서 개인식별번호를 이용한 i-PIN 도입을 의무화하고, 기존 i-PIN 사용자의 전환사용을 통해 불편함을 최소화하여 개인정보유출 방지를 위한 i-PIN 사용을 의무화해야 한다. 마지막으로 '자율 등급 서비스' 이외에도 제3의 기관을 통한 '제3자 등급 서비스'를 동시에 사용하여 정보제공자의 부정확한 등급 표시의 문제점을 보완하도록 해야 한다.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2019.01a
• /
• pp.289-290
• /
• 2019

사람들의 대화에 사용되는 단어는 사전적으로 정의되어 있으나 개인마다 단어의 의미를 다르게 받아들이기도 한다. 단어에는 단순히 사전의 정의만 담겨 있는 것이 아니라 개인의 감정과 삶의 시간 또한 담겨 있기 때문이다. 각기 다른 의미로 단어를 사용함에 따라 야기되는 소통 장애를 해소하기 위하여 본 연구에서는 단어의 일반적 정의뿐 아니라 개개인 각자의 의미를 담을 수 있는 오픈사전 앱을 개발하였다. 일반사전에서는 공공 API를 통해 국립국어원의 우리말샘 사전을 사용하며, 오픈사전에서는 웹서버를 연동하여 MySQL에 사용자가 정의한 단어를 등록한다. 또한 본 앱에서는 해상도별 이미지를 구현하여 다양한 화면에 대응하였다.

• Archives of design research
• /
• v.19 no.1 s.63
• /
• pp.79-88
• /
• 2006

A human face figure is a visual symbol of identity. Each different face per person is a critical information differentiating each person from others and it directly relates to individual identity. When we look back human history, historical change of recognition for a face led to the change of expression and communication media and it in turn caused many changes in expressing a face. However, there has not been no time period when people pay attention to a face more than this time. Technically, the advent of computer graphics opened new turning point in expressing human face figure. Especially, a visual image which can be produced, saved, and transferred in digital has no limitation in time and space, and its importance in communication is getting higher and higher. Among those visual image information, a face image in digital is getting more applications. Therefore, 3d (3-dimensional) expression of a face using computer graphics can be easily produced without any professional techniques, just like assembling puzzle parts composed of the shape of each part ands texture map, etc. This study presents a method with which a general visual designer can effectively express 3d type face by studying each producing step of 3d face expression and by visualizing case study based on the above-mentioned study result.