• Title/Summary/Keyword: Correspondences

Search Result 156, Processing Time 0.024 seconds

Improvement of korean Braille-Code System for Automatic Reverse Braille Translation (자동 역점역을 가능하게 하는 한글점자 부호체계의 개선)

  • Kihi, Tae-Yeong;Kim, Suk-Il;Kim, Hong-Gi
    • The Transactions of the Korea Information Processing Society
    • /
    • v.5 no.3
    • /
    • pp.703-714
    • /
    • 1998
  • Translation of a Korean text into a braille text causes no problem under the existing Korean braille-code System that maintains I: I correspondence between Korean characters and braille codes. However, reverse translation of a braille text into a Korean text would cause unavoidable mis-translation due to I : N correspondences between braille codes and Korean characters. The analysis shows that in Korean braille-code System, the major reasons for mis-translation are the conflicts between Korean Chosung (initial consonant) letters and numbers, between Korean Jongsung (final consonant) letters and punctuations, between Korean Jongsung (final consonant) letters and English mode delimiter codes, and overlapping use of the same braille code such as opening and closing parentheses. In this paper, we firstly established a reverse translation rule, that is to use an ordinary braille code unless the braille code causes any conflict in braille code sequences. If any ordinary braille code may cause some conflict during the reverse translation, an extended braille code that we propose in this paper must be used. In the experimentation, we cannot get any translation errors with the newly designed braille-code System compared with 25% of errors with the existing braille-code System.

  • PDF

Vision-Based Self-Localization of Autonomous Guided Vehicle Using Landmarks of Colored Pentagons (컬러 오각형을 이정표로 사용한 무인자동차의 위치 인식)

  • Kim Youngsam;Park Eunjong;Kim Joonchoel;Lee Joonwhoan
    • The KIPS Transactions:PartB
    • /
    • v.12B no.4 s.100
    • /
    • pp.387-394
    • /
    • 2005
  • This paper describes an idea for determining self-localization using visual landmark. The critical geometric dimensions of a pentagon are used here to locate the relative position of the mobile robot with respect to the pattern. This method has the advantages of simplicity and flexibility. This pentagon is also provided nth a unique identification, using invariant features and colors that enable the system to find the absolute location of the patterns. This algorithm determines both the correspondence between observed landmarks and a stored sequence, computes the absolute location of the observer using those correspondences, and calculates relative position from a pentagon using its (ive vortices. The algorithm has been implemented and tested. In several trials it computes location accurate to within 5 centimeters in less than 0.3 second.

Stereo image compression based on error concealment for 3D television (3차원 텔레비전을 위한 에러 은닉 기반 스테레오 영상 압축)

  • Bak, Sungchul;Sim, Donggyu;Namkung, Jae-Chan;Oh, Seoung-jun
    • Journal of Broadcast Engineering
    • /
    • v.10 no.3
    • /
    • pp.286-296
    • /
    • 2005
  • This paper presents a stereo-based image compression and transmission system for 3D realistic television. In the proposed system, a disparity map is extracted from an input stereo image pair and the extracted disparity map and one of two input images are transmitted or stored at a local or remote site. However, correspondences can not be determined in occlusion areas. Thus, it is not easy to recover 3D information in such regions. In this paper, a reconstruction image compensation algorithm based on error block concealment and in-loop filtering is proposed to minimize the reconstruction error in generating stereo image pair. The effectiveness of the proposed algorithm is shown in term of objective accuracy of reconstruction image with several real stereo image pairs.

Referring to The Stupa of Master ChengGuang, Reconsideration of the History of Buddhist Monks' Octagonal Tempietto Shaped Stupa (승광선사탑(乘廣禪師塔)를 통한 팔각정형(八角亭形) 승탑사(僧塔史)의 재고(再考))

  • Hawong, Moon Ho
    • Journal of architectural history
    • /
    • v.28 no.1
    • /
    • pp.25-34
    • /
    • 2019
  • "Stupa of Buddhist Monk, YeomGeo"(844) is known as the earliest Seon-stupa relic remains in Korean peninsula, from which, during late Silla and ealy Goryeo period, there were more than 30 of stupa was built on such canon. and became the well-known material culture in Seon Buddhism in late Silla period. In $9^{th}$ century, with the JeonDeong(delivering the light of Seon)from Tang to Silla, the culture of "GeonTapIpBi(building the pagoda and erecting stele)" was also moved in. And it was right after the style of monk's stupa had been methodically changed in china, from having the room in stupa for the corpse, named as "QuanShenSheLi", to the lessened stupa that contain the cremated. Analyzing the "Master ChengGuang's stupa"(807)and its stele, it can be found the correspondences of octagonal plan and the subjects of ornamentation to that of Stupas built in Silla, reveals they were made by the same canon. By the document in the stele, surmising the historical cause of alteration in Chan stupa, there was the most famous zen master ShenHui at the time, who has the most important role of making the NanZongChan to get the authenticity in Chan Buddhism. His reliqury was the first ${\acute{s}}ar{\bar{i}}ra$ casket discovered among Chan monks' relics, consequentially it was to influence to Chan cuture and size the monks 'stupa for his ${\acute{s}}ar{\bar{i}}ra$. The stupa of master ChengGuang, by its shape and geological location, is the lost piece in the Puzzle of Chan stupa culture between Silla and Tang.

Dynamic Reconstruction Algorithm of 3D Volumetric Models (3D 볼류메트릭 모델의 동적 복원 알고리즘)

  • Park, Byung-Seo;Kim, Dong-Wook;Seo, Young-Ho
    • Journal of Broadcast Engineering
    • /
    • v.27 no.2
    • /
    • pp.207-215
    • /
    • 2022
  • The latest volumetric technology's high geometrical accuracy and realism ensure a high degree of correspondence between the real object and the captured 3D model. Nevertheless, since the 3D model obtained in this way constitutes a sequence as a completely independent 3D model between frames, the consistency of the model surface structure (geometry) is not guaranteed for every frame, and the density of vertices is very high. It can be seen that the interconnection node (Edge) becomes very complicated. 3D models created using this technology are inherently different from models created in movie or video game production pipelines and are not suitable for direct use in applications such as real-time rendering, animation and simulation, and compression. In contrast, our method achieves consistency in the quality of the volumetric 3D model sequence by linking re-meshing, which ensures high consistency of the 3D model surface structure between frames and the gradual deformation and texture transfer through correspondence and matching of non-rigid surfaces. And It maintains the consistency of volumetric 3D model sequence quality and provides post-processing automation.

A Study on the Prospective Mathematics Secondary Teachers' Introduction of Concepts of Function (예비 중등 수학교사들의 함수 개념의 도입 방식 탐색)

  • Ma, Minyoung
    • Journal of the Korean School Mathematics Society
    • /
    • v.25 no.3
    • /
    • pp.225-241
    • /
    • 2022
  • The purpose of this study is to analyze and present what aspects of the concept of function prospective mathematics secondary teachers emphasize when designing a class that introduces the concept of function using curriculum and textbooks. For this purpose, virtual instruction and reflections on virtual instruction were analyzed. The results are as follows. The prospective mathematics secondary teachers consider and introduce the concepts of function as correspondences and processes. Their conception of function was consistently observed during virtual instruction and reflections on virtual instruction. The prospective mathematics secondary teachers' conception of function was closely related to the form of expressing functions. These results provi e implications for prospective mathematics secondary teachers' education for introducing the concept of function based on the dependent relation between variables presented in the 2015 revision of the national mathematics curriculum.

3D Human Shape Estimation from a Silhouette Image by using Statistical Human Shape Spaces (통계적 신체 외형 데이터베이스를 활용한 실루엣으로부터의 3차원 인체 외형 예측)

  • Dasol Ahn;Sang Il Park
    • Journal of the Korea Computer Graphics Society
    • /
    • v.29 no.1
    • /
    • pp.13-22
    • /
    • 2023
  • In this paper, we present a method for estimating full 3D shapes from given 2D silhouette images of human bodies. Because the silhouette only consists of the partial information on the true shape, it is an ill-posed problem. To address the problem, we use the statistical human shape space obtained from the existing large 3D human shape database. The method consists of three steps. First, we extract the boundary pixels and their appropriate normal vectors from the input silhouette images. Then, we initialize the correspondences of each pixel to the vertex of the statistically-deformable 3D human model. Finally, we numerically optimize the parameters of the statistical model to fit best to the given silhouettes. The viability and the robustness of the method is demonstrated with various experiments.

Vegetation of Moojechi Moor in Ulsan: Syntaxonomy and Syndynamics (울산 무제치늪의 식생: 군락분류와 군락동태)

  • 김종원;김중훈
    • The Korean Journal of Ecology
    • /
    • v.26 no.5
    • /
    • pp.281-287
    • /
    • 2003
  • We present the first analysis of moor vegetation on the Moojechi of Ulsan including syntaxonomy and syndynamics. We classified plant communities according to the Braun-Blanquet approach. In order to better understand ecological alteration processes and changing species compositions along successional gradients we also examined synecological differences using Principal Coordinate Analysis(PCoA) in terms of moisture gradient, species richness, and community structure. Classification resulted in one association and five plant communities occupying distinct moor habitats: Hypericum laxum-Eleocharis acicularis for. longiseta community, Drosera rotundifolia-Eleocharis congesta community, Platanthero-Molinietum japonicae ass. nova hoc loco, Molinia japonica-Alnus japonica community, Miscanthus sinensis-Pinus densiflora community, and Convallaria keiskei-Quercus serrata community. Due to synecological correspondences and floristic similarities in supraregional perspective, Platanthero-Molinietum can be assigned to existing higher syntaxonomic units of Molinion and Molinietalia in Braun-Blanquet system, established in Japan. We propose to extend their range and designate the new class Molinietea japonicae representative to the intermediate moor (Zwischenmoor) vegetation in Northeast Asia. PCoA resulted in four types showing a sequencess of succession: Needle spike-rush type, moor-grass type (incl. alder forest type), eulalia type, and oak forest type. A combination of edaphic conditions (soil eutrphication and soil moisture) and hydrologic patterns of moor ecosystem related to topography, occurring as result of external geophysical forces, controls inter alia spatial patterns and floristic compositions of moor plant communities.

A Study on the Library of Congress's Subject Headings as an Information Access Point (정보의 접근점으로서 미국의회도서관 주제명 표목에 관한 연구)

  • Chung, Yeon-Kyoung
    • Journal of the Korean Society for Library and Information Science
    • /
    • v.44 no.2
    • /
    • pp.51-72
    • /
    • 2010
  • The purpose of this study is to explore usefulness of the Library of Congress Subject Headings(LCSH)for librarians as an information access point. Sixty four librarians at the University of Washington(UW)and 67 librarians from the Council on East Asian Libraries(CEAL) participated through web surveys about LCSH and 9 librarians from UW and 10 librarians from CEAL joined in-depth interviews and e-mail correspondences. It was concluded that LCSH was very useful for finding other related materials as a subject access point. However, there were two necessary improvements recommended for the LCSH. First of all, in aspect of terminology, subject headings should be more familiar to the public with currency and show clear definitions and relationships. Second, with regard to the structure of LCSH, it should have simplicity, ease of use, and consistency when using combinations of subject headings. Since many other countries are using or adapting LCSH, its effect can be very strong. Therefore, the meaning of "Tok Island (Korea)" as well as diplomatic and scholarly efforts with sensing movements of other countries.

A Study on the status of school health and analysis of factors affecting school nurse's activity in the elementary school (서울지역(地域) 중고등학교(中高等學校) 학교보건실태(學校保健實態) 및 양호교사 업무수행(業務遂行)에 관(關)한 요인분석(要因分析))

  • Ko, Young Aie
    • Journal of the Korean Society of School Health
    • /
    • v.1 no.2
    • /
    • pp.34-49
    • /
    • 1988
  • The purpose of this study is to identify the status of school health and analyze affecting factors of school nurses' self confidence and nursing activities of the secondary school in Seoul. The data was collected from 13th of August to 30th of October. The self reported questionairs were distributed during one of the school nurses seminars held in Seoul and 93 secondary school nurses answered. Analysis of the data was done utilizing SPSS for percentage, mean, T-test ANOVA and Pearson Correlation Coefficients. The results of study are summerized as follows; 1. General Characteristics The mean age of the subjects was 33.4 and mean length of experience as a school nurse was 7.3 years. 79.5 percent of them had clinical experiences and the mean clinic experience was 2.1 years. The majority of them were graduate of the baccalaureate nursing programs and 82.8 percent of them were married. 72.0 percent of the sample had religion, and 60.2 percent of them were in the national or public schools. 90.3 percent of them had independent duty. 2. The status of school health resources In average, there were 2,445 students, 37 classes and 63 teachers per school nurse. 48.4 percent of them were aware of the school budget. The budget for school health was 585,000 won per school in average. 30.0 percent of the schools had school health organization. The schools whose health clinics were on the first floor consisted of 79.3 percent, among them 42.9 percent were on the center of the building office. 3. Activities of school health nursing The average number of students using health clinic were 430 per month. The majority of the problem was digestive problem. There were 7.5 times of mean correspondences with parents per year. The activities of the school nurses were clinic management (29.0%), health care services (23.5%) and health education (14.1%). 4. The degrees of self confidence of the school nurse and nursing activities Self confidence measured by 6 items of self-reported questionaires scored by 4 point Likert Scale revealed. The nurses' self-confidence was 2.922 in clinic management, 2.909 in health education, 2.759 in program planning and evaluation, 2.757 in health care services, 2.692 in management of school environment, and 2.250 in operation of school health organization. The nursing activities scored by 2 point. The nursing activities was 1,870 in program planning and evaluation, 1.853 in health education, 1.843 in clinic management, 1.739 in health care services, 1.696 in management of school environment and 1.265 in operating of school health organization. 5. Factors affecting self confidence and nursing activities of school nurses The general characteristics of the school nurses and the school health resources were related to self confidence and nursing activities. The most significant variable to nurses' self confidence was type of the school ownership and the presence of school health organization was the most significant factor to nursing activities.

  • PDF