• Title/Summary/Keyword: table layout

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Line Tracking Algorithm for Table Structure Analysis in Form Document Image (양식 문서 영상에서 도표 구조 분석을 위한 라인 추적 알고리즘)

  • Kim, Kye-Kyung
    • Journal of Software Assessment and Valuation
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    • v.17 no.2
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    • pp.151-159
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    • 2021
  • To derive grid lines for analyzing a table layout, line image enhancement techniques are studying such as various filtering or morphology methods. In spite of line image enhancement, it is still hard to extract line components and to express table cell's layout logically in which the cutting points are exist on the line or the tables are skewing . In this paper, we proposed a line tracking algorithm to extract line components under the cutting points on the line or the skewing lines. The table document layout analysis algorithm is prepared by searching grid-lines, line crossing points and gird-cell using line tracking algorithm. Simulation results show that the proposed method derive 96.4% table document analysis result with average 0.41sec processing times.

Local Similarity based Document Layout Analysis using Improved ARLSA

  • Kim, Gwangbok;Kim, SooHyung;Na, InSeop
    • International Journal of Contents
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    • v.11 no.2
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    • pp.15-19
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    • 2015
  • In this paper, we propose an efficient document layout analysis algorithm that includes table detection. Typical methods of document layout analysis use the height and gap between words or columns. To correspond to the various styles and sizes of documents, we propose an algorithm that uses the mean value of the distance transform representing thickness and compare with components in the local area. With this algorithm, we combine a table detection algorithm using the same feature as that of the text classifier. Table candidates, separators, and big components are isolated from the image using Connected Component Analysis (CCA) and distance transform. The key idea of text classification is that the characteristics of the text parallel components that have a similar thickness and height. In order to estimate local similarity, we detect a text region using an adaptive searching window size. An improved adaptive run-length smoothing algorithm (ARLSA) was proposed to create the proper boundary of a text zone and non-text zone. Results from experiments on the ICDAR2009 page segmentation competition test set and our dataset demonstrate the superiority of our dataset through f-measure comparison with other algorithms.

Detection of Random Effects in a Random Effects Model of a One-way Layout Contingency Table

  • Kim, Byung-Soo
    • Journal of the Korean Statistical Society
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    • v.13 no.1
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    • pp.1-19
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    • 1984
  • A random effects model of a one-way layout contingency table is developed using a Dirichlet-multinomial distribution. A test statistic, say $T_k$, is suggested for detecting Dirichlet-multinomial departure from a multinomial distribution. It is shown that the $T_k$ test is asymptotically superior to the classical chi-square test based on the asymptotic relative efficiency. This superiority is further evidenced by a Monte Carlo simulation.

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Automatic Layout of High Density PLA (고밀도 PLA의 자동 Layout System의 구성)

  • 이제현;경종민
    • Journal of the Korean Institute of Telematics and Electronics
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    • v.22 no.6
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    • pp.13-18
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    • 1985
  • A set of utility programs for automatic generation, minimization and verification of high density PLA layout was developed, which includes equation-to-truth table translator, logic minimizer, PLA product term sorter, file generator for plotting stick diagram, dynamic CMOS PLA layout generator and bipartite row folded CMOS PLA layout generator. Size reduction is performed mainly by logic minimizer and bipartite row folder, and the maximal delay is reduced by sorter. The fOe for automatically generated layout is stored in CIF. Each program was written in Clanguage, and was run on VAX-11/750 (UNIX).

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Analytical Design Methodology for Recommending VDT Workstation Settings and Computer Accessories Layout

  • Rurkhamet, Busagarin;Nanthavanij, Suebsak
    • Industrial Engineering and Management Systems
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    • v.3 no.2
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    • pp.140-150
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    • 2004
  • Repetitive stress injury at the wrist has been reported as a common injury among visual display terminal (VDT) users (i.e., computer users). Adjusting a VDT workstation (computer table and chair) to maintain a correct seated posture while operating a keyboard is perhaps the most frequently recommended preventive solution. This paper proposes an analytical design methodology based on ergonomic design principles for recommending appropriate VDT workstation settings and layout of individual computer accessories on the computer table. The proposed design methodology consists of two interrelated phases: (1) determination of VDT workstation settings, and (2) design of computer accessories layout. Based on the information about the VDT user, dominant task to be performed, typing skill, and degrees of physical and visual interactions between the user and computer accessories, adjustment and layout solutions are recommended to allow having a correct seated posture while minimizing both physical and visual movements. The results from an experiment show that when adjusting the workstation and locating the computer accessories according to the recommendations given by the proposed design methodology, the user's hand movements can be significantly reduced.

The Geometric Layout Analysis of the Document Image Using Connected Components Method and Median Filter (연결요소 방법과 메디안 필터를 이용한 문서영상 기하학적 구조분석)

  • Jang, Dae-Geun;Hwang, Chan-Sik
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.27 no.8A
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    • pp.805-813
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    • 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.

A Study on the Reform-Curriculum of Interior-Architecture in a Junior College (전문대학 실내건축과 교과과정개편에 관한 연구)

  • 신정진
    • Korean Institute of Interior Design Journal
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    • no.7
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    • pp.38-44
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    • 1996
  • To improve and replete many problems which are discovered the present condition and cases of interior architecture education previously, 1) Adopted the sixth semester, the ninth semester of 3 -year course of study as a reform of the school system. 2) Building up Design -basic understandings of design , Design Resources -layout course, factor course and Design Communication three -steps of systematic -educational course of methodical course fro transmitting and 3) Classifying interior space designer , interior factor designer, interior decorator, special -space designer as practical parts. 4) Divided three fields : layout, construction work, factor design , related to interior design works. 5) Also, divided like (Table-2), job-analysis and formation of relating course into layout and construction work. 6) Analyzed and (Table-3) the present condition of four domestic Junior college (Seoul and kyong -ki areas) as a case study. 7) Analyzed and surveyed (Table-4) three American colleges, sixth semester and ninth semester of three year course of study and 8) Have to solidify practical computer education, foreign language education as the terms desired keeping pace with internationalization and the changes of opening periods. 9) As above-mentioned, reenforcing the fundamental education of lower grades and needs fractionizing special education of higher grades. Finally, needs to be prepared the environments which enable to develop the marked educational goals & contents and then be exeucted, which make one do his responsibility after setting out in the world, satisfying a periods wishies : many competent experts that can be produced.

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Implementation of permanent Magnetic Repulsion Type of Magnetic Levitation Table Using One Degree-of-freedom Active Control (1 자유도 능동제어에 의한 영구자석 반발형 자기부상 테이블의 구현)

  • Jo, Yeong-Geun;Choe, Gi-Bong;Tadahiko Shinshi;Akira Shimokohbe
    • Journal of the Korean Society for Precision Engineering
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    • v.19 no.7
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    • pp.125-132
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    • 2002
  • This paper shows an experimental magnetic levitation table using one degree-of-freedom active control. The magnetic levitation table using repulsions of permanent magnets was theoretically presented already. Thus the objective of this paper is to prove stable levitation with only one degree-of-freedom active control experimentally. For the design of the system, at first, permanent magnets are selected. Secondly, the spring constants of the virtual spring are obtained by simulation. Thirdly, the moving magnets are arranged using a stable layout relation. Fourthly, a linear voice coil motor is designed. Finally, the magnetic levitation system is manufactured. The phenomenon of stable levitation in the manufactured table is proven by means of dynamic time and frequency responses. The differences between the theoretical natural frequencies and experimental ones are analyzed. Also, stable range in the control direction is shown experimentally.

A Study on Optimal Spot-weld Layout Design of the Shock Tower Structure Considering Fatigue Life under Random Vibration Load (불규칙 진동하중을 받는 쇽 타워의 피로수명을 고려한 점용접 위치 최적설계)

  • Lee, Yong-Hoon;Lee, Seung-Yoon;Bae, Bok-Soo;Yim, Hong-Jae
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2011.04a
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    • pp.538-543
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    • 2011
  • In this paper, optimal spot weld layout design of the shock tower structure is performed for increasing fatigue life of spot weld and fatigue life of shock tower simultaneously. To predict the fatigue life, linear static analysis is conducted then fatigue analysis is performed by applying random vibration load. To optimize the spot weld layout, design variables that have an effect on spot weld fatigue life are selected. Based on the DOE table, spot weld fatigue analysis is conducted. Finally, response surface model is made from fatigue analysis results and optimized spot weld layout model which increases fatigue life of sport weld and fatigue life of shock tower is determined.

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The Process for Development of the Optimum Layout Model in Slab Formwork of High-rise Building Construction (초고층 건축공사의 바닥거푸집 최적배치 모델 구축 프로세스 연구)

  • Cha, Minsoo;Kim, Taehoon;Cho, Hunhee;Kang, Kyung-In
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2011.05a
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    • pp.171-172
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    • 2011
  • Formwork accounts for a large proportion of the framework in high-rise construction projects in terms of the duration and cost. Especially, slab formwork has a significant influence on these factors. However, the current selection of formwork method in general contractors depends on the decisions of few experienced engineers, and layout planning of the formwork in specialty contractors requires lots of time by different floor types. As a preliminary study for developing an optimum layout model in slab formwork of high-rise building construction, this study proposes the process of the optimum layout model and determines a fitness function for use of the genetic algorithm aimed at table formwork.

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