• Journal of the Korean Society for information Management
• /
• v.6 no.2
• /
• pp.3-20
• /
• 1989

Hypertext system is a new type of electronic information system which offers users great freedom in writing and reading electronic documents. Hypertext means non-linear or non-sequential text, which consists of a collection of nodes connected by links. Nodes may contain segments of text, video images, and sound. In this paper, the concept and characteristics of hypertext are reviewed, components of hypertext are explored in detail, and Guide is illustrated with application examples.

• Proceedings of the Korean Society of Machine Tool Engineers Conference
• /
• 1999.10a
• /
• pp.554-559
• /
• 1999

The purpose of this study is the machining of texture shapes by the contour fitting data. The hardware of the system comprises PC and scanning system, CO2 laser machine. There are four steps, (1) text image loading using scanning shapes or 2D image files, (2) generation of contour fitting data by the line and arc, cubic Bezier curve, (3) generation of NC code from the contouring fitting data, (4) machining by the DNC system. It is developed a software package, with which can conduct a micro CAM system of CNC laser machine in the PC without economical burden.

• Proceedings of the Korea Water Resources Association Conference
• /
• 2016.05a
• /
• pp.233-233
• /
• 2016

현재 한국건설기술연구원에서 X-밴드 이중편파레이더를 운영하고 있으며, 이 결과 NetCDF 파일형식의 레이더 관측자료가 생성되고 있다. 레이더 자료포맷인 Netcdf 자료의 경우 레이더 관측과정에서 발생한 결과를 극좌표 형식으로 저장하고 있어 이를 분석이나 시스템에 적용하여 활용하기 위해서는 격자좌표로 변환하는 것이 필요하고, 또한 다양한 자료 변환 및 추출작업을 텍스트 기반으로 하기 위해 다양한 사전 작업이 필요하여 일반사용자가 사용하는데 어려운 상황이다. 그래서 이를 쉽게 수행할 수 있도록 JAVA를 이용하여 윈도우 기반으로 사용할 수 있는 프로그램(KICTRadar4WIN) 프로그램을 개발하였다. KICTRadar4WIN 프로그램의 경우 레이더 자료 품질관리, 레이더 자료 관리, 레이더 자료 추출, 레이더 자료 표출의 4가지 기능을 포함하고 있다. ${\bullet}$ 레이더 자료 품질관리 - 원시자료에 QC 기준을 입력하여 QC된 레이더자료를 생성 ${\bullet}$ 레이더 자료관리 - CAPPI 자료생성 : 관측된 PPI 및 RHI 자료를 이용하여, CAPPI 자료를 생성 - QPE 자료생성 : CAPPI 자료를 이용하여 QPE 자료를 생 - QPE 자료보정 : 지점우량을 이용한 G/R비를 산정하여 QPE 보정자료를 생성 ${\bullet}$ 레이더 자료 추출 - 격자자료 추출 : PPI, CAPPI, QPE 자료를 TEXT 자료로 변환하여 저장 - 지점자료 추출 : 입력된 지점좌표 중심으로 선택한 범위의 평균값을 TEXT 파일로 저장 - 면적자료 추출 : 입력된 면적자료의 평균값을 추출하여 TEXT파일로 저장 ${\bullet}$ 레이더 자료 표출 - 영상표출 : PPI, CAPPI, QPE 관측변수 자료를 그림파일 생성 - KMZ 자료생성 : PPI, CAPPI, QPE 자료를 KMZ 파일 생성

• Journal of the Korean earth science society
• /
• v.25 no.4
• /
• pp.222-231
• /
• 2004

The purpose of this study is to analyze the seventh curriculum textbooks and teacher's guides of high school science courses in relation to the generation (mechanism) of magma in subduction boundary and find the incorrect descriptions of the texts and the figures (illustrations) and then suggest some improved schemes. According to the result there are many discrepancies in definition of 'magma' among the textbooks and further little scientific explanations about the formation mechanism of magma in most textbooks, and even no descriptions about that. In addition, the figures are inconsistent with the description of the text and also have some incorrect depiction which might contribute to the forming and reinforcing misconceptions about Plate Tectonics as well as a volcanic activity in subduction boundary. On the basis of the previous researches, therefore, some improved schemes (text descriptions and figures) are suggested. The results of this study should be used as a reference for publishing science textbook, developing science curriculum, and teaching effectively in the high school.

• Journal of Korea Society of Industrial Information Systems
• /
• v.8 no.2
• /
• pp.14-20
• /
• 2003

This paper presents a text extraction method of camera based document image. It is more difficult to recognize camera based document image in comparison with scanner based image because of segmentation problem due to variable lighting condition and versatile fonts. Both document binarization and character extraction are important processes to recognize camera based document image. After converting color image into grey level image, gray level normalization is used to extract character region independent of lighting condition and background image. Local adaptive binarization method is then used to extract character from the background after the removal of noise. In this character extraction step, the information of the horizontal and vertical projection and the connected components is used to extract character line, word region and character region. To evaluate the proposed method, we have experimented with documents mixed Hangul, English, symbols and digits of the ETRI database. An encouraging binarization and character extraction results have been obtained.

• Journal of Korean Home Economics Education Association
• /
• v.30 no.1
• /
• pp.99-114
• /
• 2018

Textbooks are one of the most crucial variables that determine the quality of education and one of the most influential sources for education. Textbooks should be designed with inquiring tendencies so as to help students to practice self-directed learning. inquiring textbooks can not only intrigue students but also enhance the quality of class. Here, this author is going to analyze the inquiring tendencies of a core construct, 'management', in 12 different types of high school Technology & Home Economics textbooks reflecting the 2015 revised national curriculum based on the Romey method. According to the analysis results, only one type of textbook shows inquiring tendencies in the text, which means that the text is more oriented to delivering knowledge rather than to pursuing students' inquiry learning. Because analysis indexes for figures and diagrams fall under the range of desirable inquiring tendencies in 10 types of textbooks, the figures and diagrams presented in Home Economics textbooks are intended to induce particular learning activity. Learning activity indexes reveal 9 types of textbooks' inquiring tendencies, which means that Home Economics textbooks present a reasonable amount of learning activity in general in order to intrigue students and stimulate their inquiring mind. In terms of evaluation indexes, only 2 types of textbooks show inquiring tendencies. According to the results of examining each individual textbook, some of the Home Economics textbooks reflecting the 2015 revised national curriculum include inquiring elements in the text, figures and diagrams, activities, and evaluation all; however, some still need improvements. Regarding how to better the Home Economics textbooks, this researcher will suggest the following implications and complements. Home Economics textbooks should include inquiring elements to induce interactions properly in the class, and when they write the textbooks, the text, figures and diagrams, activities, and evaluation should be designed balancedly, and the questions need to be expressed in a way to develop students' inquiring mind.

• Journal of the Korea Convergence Society
• /
• v.8 no.8
• /
• pp.33-40
• /
• 2017

In this paper, we propose a text extraction method by pattern analysis on contour for effective text detection in image. Text extraction algorithms using edge based methods show good performance in images with simple backgrounds, The images of complex background has a poor performance shortcomings. The proposed method simplifies the color of the image by using K-means clustering in the preprocessing process to detect the character region in the image. Enhance the boundaries of the object through the High pass filter to improve the inaccuracy of the boundary of the object in the color simplification process. Then, by using the difference between the expansion and erosion of the morphology technique, the edges of the object is detected, and the character candidate region is discriminated by analyzing the pattern of the contour portion of the acquired region to remove the unnecessary region (picture, background). As a final result, we have shown that the characters included in the candidate character region are extracted by removing unnecessary regions.

• Journal of Digital Contents Society
• /
• v.17 no.6
• /
• pp.545-553
• /
• 2016

In this study, we propose an information providing and learning system using augmented reality in the exhibition (museum, performance) environment. In a typical exhibition space, a description of a picture or a photograph is provided in a printed matter or a space in the form of an information space (explanatory space), or an auxiliary explanation using an 'audio guide' or a 'docent' program. Augmented reality technology is applied to the exhibition space in the form of a fusion of these methods, and the description of the exhibition is provided to the user in various forms such as text, picture, audio and image, thereby providing stereoscopic information and learning. We apply the augmented reality technology in a specific exhibition space and utilize it as a tool of providing information and learning using image description of pictures.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.17 no.10
• /
• pp.1131-1146
• /
• 1992

In this paper, we suggest a new algorithm applied to the segmentation of published documents to obtain constituent and layout information of document. Firstly, we begin the process of blocking and labeling on a 300dpi scanned document. Secondly, we classify the blocked document by individual sub-regions. Thirdly, we group sub-regions into graphic areas and text areas. Finally, we extract information for layout recognition by using the data. From an experiment on papers of an academic society, we obtain the above 98% of region classification rate and extraction rate of information for the layout recognition.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.27 no.8A
• /
• pp.805-813
• /
• 2002

Document image should be classified into detailed regions as text, picture, table and etc through the geometric layout analysis if paper documents can be converted automatically into electronic documents. However, complexity of the document layout and variety of the size and density of a picture are the reason to make it difficult to analyze the geometric layout of the document images. In this paper, we propose the method which have a better performance of the region segmentation and classifications, and the line extraction in the table region than the commercial softwares and previous methods. The proposed method can segment the document into detailed regions by using connected components method even if its layout is complex. This method also classifies texts and pictures by using separable median filter even. Though their size and density are diverse, In addition, this method extracts the lines from the table adapting one dimensional median filter to the each horizontal and vertical direction, even though lines are deformed or texts attached to them.