• Title/Summary/Keyword: feature generation

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Synthesis of Realistic Facial Expression using a Nonlinear Model for Skin Color Change (비선형 피부색 변화 모델을 이용한 실감적인 표정 합성)

  • Lee Jeong-Ho;Park Hyun;Moon Young-Shik
    • Journal of the Institute of Electronics Engineers of Korea CI
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    • v.43 no.3 s.309
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    • pp.67-75
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    • 2006
  • Facial expressions exhibit not only facial feature motions, but also subtle changes in illumination and appearance. Since it is difficult to generate realistic facial expressions by using only geometric deformations, detailed features such as textures should also be deformed to achieve more realistic expression. The existing methods such as the expression ratio image have drawbacks, in that detailed changes of complexion by lighting can not be generated properly. In this paper, we propose a nonlinear model for skin color change and a model-based synthesis method for facial expression that can apply realistic expression details under different lighting conditions. The proposed method is composed of the following three steps; automatic extraction of facial features using active appearance model and geometric deformation of expression using warping, generation of facial expression using a model for nonlinear skin color change, and synthesis of original face with generated expression using a blending ratio that is computed by the Euclidean distance transform. Experimental results show that the proposed method generate realistic facial expressions under various lighting conditions.

Study of Registry Designing for the Hydrographic Data Standard Technology Operation (수로정보 표준기술 운용을 위한 등록소 설계 연구)

  • Kim, Ho-Yoon;Oh, Se-Woong;Shim, Woo-Sung;Suh, Sang-Hyun
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2012.06a
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    • pp.87-88
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    • 2012
  • The IHO developed the S-100 standard for Digital Hydrographic Data in order to assist the proper and efficient use of hydrographic data and information for the safety of navigation and the protection of marine environment. The former model, S-57, was considered outdated to be utilized as the basis for the next-generation Electronic Chart(ENC) product specification. The key feature of the S-100 standard is the use of Registry and its components, Registers. This online-based Registry provides a universal standard that can be implemented in the actual performance of the navigation system with convenience. In the current situation, the only registry is owned by the IHO and it is available to domain experts. However, since S-100 is an international standard operated by an international organization, the process of the changes and updates of the data requires time before immediate implementation when demanded. Therefore, regarding the safety of navigation of the domestic users and mariners, a separate domestic registry is necessary to develop a domestic Information Registry. This study specifically aims to build a Registry based on IHO published S-99 through designing an adequate website dedicated for its purpose to provide collection of definitions and hydrographic data.

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Evaluation on Tie Point Extraction Methods of WorldView-2 Stereo Images to Analyze Height Information of Buildings (건물의 높이 정보 분석을 위한 WorldView-2 스테레오 영상의 정합점 추출방법 평가)

  • Yeji, Kim;Yongil, Kim
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.33 no.5
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    • pp.407-414
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    • 2015
  • Interest points are generally located at the pixels where height changes occur. So, interest points can be the significant pixels for DSM generation, and these have the important role to generate accurate and reliable matching results. Manual operation is widely used to extract the interest points and to match stereo satellite images using these for generating height information, but it causes economic and time consuming problems. Thus, a tie point extraction method using Harris-affine technique and SIFT(Scale Invariant Feature Transform) descriptors was suggested to analyze height information of buildings in this study. Interest points on buildings were extracted by Harris-affine technique, and tie points were collected efficiently by SIFT descriptors, which is invariant for scale. Searching window for each interest points was used, and direction of tie points pairs were considered for more efficient tie point extraction method. Tie point pairs estimated by proposed method was used to analyze height information of buildings. The result had RMSE values less than 2m comparing to the height information estimated by manual method.

The theory and application of holistic innovation policy: Cases of Finland and Korea (총체적 혁신정책의 이론과 적용: 핀란드와 한국의 사례)

  • Seong, Ji-Eun;Song, Wi-Chin
    • Journal of Korea Technology Innovation Society
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    • v.10 no.3
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    • pp.555-579
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    • 2007
  • This study analysed theory and application of holistic innovation policy in the 3rd generation innovation policy with cases of Finland and Korea. Innovation policy areas of both countries are expanding from simple goal of economic development to extensive goals such as sustainable development, quality of life, balanced growth etc. Also administrative system changed in order to let technical innovation on the center of national operation and reorganized relation and structure of relative policies like manpower, education, region policy. Particularly, Korea is in embryo standing for S&T driven society since Noh's government. But, there are differences in embodiment degree and feature between both countries. Finland reinvigorate field of public opinion due to corporatism tradition as a Scandinavian institution. Government support system developed co-program and co-policy beyond territory of individual ministry to raise policy effectiveness. However, concept of the Korean innovation policy is ahead of the times but maintained framework of developing country. And there is no active participation of private sector and civil society because transition process accomplished on the top-down method, It could hardly progress toward transition in spite of various efforts to carry out a reform.

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An experimental study on the smoke-spread region before reaching the critical velocity for the case of fires in tunnels employing longitudinal ventilation system (종류식 환기 시스템에서 임계속도 도달 전 스모크 확산 영역에 관한 실험적 연구)

  • Ki, Young-Min;Yoon, Sung-Wook;Yoon, Chan-Hoon;Kim, Jin
    • Tunnel and Underground Space
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    • v.16 no.6 s.65
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    • pp.526-535
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    • 2006
  • An experimental study was carried out on a reduced scale tunnel model to grasp the behavioral feature of fire-induced smoke in the long tunnels. Based on Froude modeling, the 1/50 scaled tunnel model (20 m long) was constructed by acrylic tubes and paraffin gas was released inside the tunnel to simulate the 20 MW fire-induced smoke. me test results show, that after approximately 2 minutes of fire generation, was descended from the tunnel ceiling through the decrease of buoyancy, then it was symmetrically propagated about 90 meters for 4 minutes before jet fans were operated. The smoke was effectively controlled when the jet fans were operated and an air stream velocity was getting closed to reach a critical velocity (the minimum air velocity that requires to suppress the smoke spreading against the longitudinal ventilation flow during the tunnel fire situations). It was also found out that a range of smoke was spreaded about 3 meters from the origin of fire but the range was not propagated to the escape direction anymore. The early stage of the In operation, however, showed that the smoke was hardly controlled. It means that the operation of emergency ventilation system has many dangerous factors such as an intercepting breathing zone.

The Design and Implementation of The Amendment Statement Automatic Generated System for Attached Tables in Legislation (법령 내 별표 서식에 대한 개정지시문 자동 생성 시스템의 설계 및 구현)

  • Cho, Sung Soo;Jo, Dae Woong;Kim, Myung Ho
    • Journal of the Korea Society of Computer and Information
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    • v.19 no.4
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    • pp.111-122
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    • 2014
  • Legislation are social norms that give directly or indirectly, huge impact on the social or corporate, personal problems, unlike a normal document. Also, over time it has a feature constantly changing by the laws enactment and amendment, repealed. The amendment statement automatic generated system is used for purpose of proclamation to those. However, existing system is able to generate amendment statement just text body of law how compare and analyze the current legislation and amendment legislation. However, actual legislation to be created attached table of the table form in complex structure besides simple text form as body text. In this paper, we additional implement attached table processing to existing the amendment statement automatic generated system that containing the table does not handle attached table. We were analyse to the amendment statement generated grammar and table structure in attached table of the legislation for processing to attached table. Also proposed a method to compare attached table in the table. So, it is enable the automatic generation with amendment statement which various forms of legislation the documents.

A Detect and Defense Mechanism of Stateful DRDoS Attacks (상태기반 DRDoS 공격에 대한 탐지 및 방어기법)

  • Kim, Minjun;Seo, Kyungryong
    • Journal of the Institute of Electronics and Information Engineers
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    • v.51 no.5
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    • pp.127-134
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    • 2014
  • In DRDoS(Distributed Reflective Denial of Service) attacks, the victim is bombarded by packets from legitimate reflector unlike DDoS(Distributed Denial of Service) attacks through zombie, which is more dangerous than DDoS attack because it is in stronger disguise. Therefore, the method of filtering packet method on router are useless. Moreover SCTP(Stream Control Transmission Protocol) multi-homing feature, such as with an improved transmission protocol allows detecting attacks is more difficult and the effect of the attack can be maximized. In this paper we propose a DRDoS detection mechanism based on DRDoS utilizing attention to the characteristics of stateful protocols. The proposed scheme is backed by stateful firewall, and detect DRDoS attacks through a rules table and perform a defense treatment against DRDoS attack. Rules table with a simple structure is possible to easily adapt for any kind of stateful protocol can used by DRDoS attack. The experimental result confirm that our proposed scheme well detect DRDoS attacks using SCTP, the next-generation transmission protocol which not known by victim, and reduce the attacking packets rapidly.

Siamese Cats - Analysis of Six Thai Independent Animators

  • YOUNG, Millie
    • Cartoon and Animation Studies
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    • s.45
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    • pp.367-396
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    • 2016
  • As an animation educator at Mahidol University International College, Bangkok, for eight years I have been in a privileged position to be educating a small section of a new generation of Thai animators. Thailand has had little animation experimentation of their own and pre-internet had limited access to such diversity so I have attempted to bring some of the wealth of animation history, in particular British and European, as this is my background, into the classroom. In particular my teaching aim has been to introduce various possibilities to the choices of medium, styles and textual narratives that early (and current) experimental and independent animators have explored. Since the release of the first commercial feature film, Khun Kluay 2006, the Thai animation industry has gone through various highs and lows in the commercial sector, building a skilled workforce, many of whom trained and worked abroad then returned. Now there is strong evidence of an independent animation starting to emerge. In a continuation to my research on Thai Animation this paper will analyze selected independent works in more detail, exploring the themes, style and technology used. Whilst also acknowledging the possible mis- interpretation as that this is coming from the perspective of an outsider whose cultural language and interpretation may transcend the creators' given experiences and add alternative interpretation. The aim will be to contextualize the content, ideas and cultural perspective and bring more Thai works into the gaze of animation studies academics

A Study on the Korea Folktale of Sign Language Place Names (전국 수어(手語)지명의 유래에 관한 연구)

  • Park, Moon-Hee;Jeong, Wook-Chan
    • The Journal of the Korea Contents Association
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    • v.19 no.11
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    • pp.664-675
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    • 2019
  • This study examined Korean sign Language of the linguistic form and the etymological forms about the origins of the Korean national sign languages. The general sign language has been shown through previous research all of place names from Chinese character except Seoul and Lmsil. And then, Sign language's form and origins which are current using in order to examine what kind of feature were analysed through interviews and publications in Korean association of the deaf people. As a result, it was analysed that was composed majority. indigenous sign language Korean place names were made and used by deaf than loan word character of Chinese characters, Hangul and loanword. When we consider that place names were correspond to a precious cultural heritage, representing the history with the culture and identity of the relevant area, we can worth of preservation and transmission to the abundant iconicity in the name of Sui. On the other hand the indigenous sign language korea place manes can worth deaf culture or korean sign language. Even lf geographical characteristics of area have been changed or local product was disappeared in this situation by The origin of sign language reach in modern time local specialty by geographical form lt continued over generation. This can be regarded as the Korean sign language of the form in the way of visual. lt will be very valuable heritage in the preservation deaf culture.

Changes in Demographic and Housing Characteristics of New Towns in Korea: Focused on Five New Towns in Seoul Metropolitan Area (우리나라 신도시의 인구 및 주거특성 변화: 분당, 일산 등 1기 신도시를 중심으로)

  • Yoon, Jeong-Joong;Kim, Eun-Mi
    • Land and Housing Review
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    • v.5 no.4
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    • pp.235-246
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    • 2014
  • In the late 1980s, 5 new towns such as Bundang, Ilsan, Pyeongchon, Sanborn, Jungdong were constructed to solve housing problems and to disperse functions concentrated within Seoul. As the city got matured, it began to appear the initial signs of urban problems such as aging of high rise-density apartment sites, traffic congestion, lack of parking spaces and aging of infrastructure. Therefore, in order to cope with urban problems, it is very important to apprehend the process of urban growth, its change and the feature of physical/human elements. So, the purpose of this thesis is to analyze the changes in housing and population characteristics for past 20 years by use of Census data from 1995 to 2010. First, the new town's goal of population and housing plan at the time of construction was analyzed how it was achieved, and it is close to the performance of the goal. And the trend of changes in the population and household characteristics was analyzed by every five year's data. As the result of analysis, it shows socio-demographic changes such as aged and elderly population growth, rapid increase in one generation's household and single person household, highly educated city, monthly rent household's increase and charter household's reduction. Results of this analysis can be utilized to aforethought management of new towns. But it is required more sustained and systematic urban monitoring and data analysis because the one-off analysis of the city's characteristics alone is difficult enough to grasp them.