• Title/Summary/Keyword: maps

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Evolutionary Topic Maps (진화연산을 통해 만들어지는 토픽맵)

  • Kim, Ju-Ho;Hong, Won-Wook;McKay, Robert Ian
    • 한국HCI학회:학술대회논문집
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    • 2009.02a
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    • pp.685-689
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    • 2009
  • Evolutionary Computation is not only widely used in optimization and machine learning, but also being applied in creating novel structures and entities. This paper proposes evolutionary topic maps that can suggest new and creative knowledge not easily producible by humans. Interactive evolutionary computation method is applied into topic maps in order to accept human evaluation on feasibility of intermediate topic maps. Evolutionary topic maps are creativity support tools, helping users to encounter new and creative knowledge. Further work can greatly improve the system by providing more operations, preventing over-convergence, and overcoming user fatigue problem by providing more intuitive user interface, better visualization, and interpolation mechanisms.

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Development of Soil Analysis System for Land Readjustment Using GIS (GIS를 이용한 경지정리 토양처리 분석시스템 개발)

  • Lee, Ju-Seung;Goh, Hong-Seok;Lee, So-Yeal
    • Journal of Korean Society for Geospatial Information Science
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    • v.12 no.4 s.31
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    • pp.13-19
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    • 2004
  • It has been a common practice to use manually processed soil maps in planning of land readjustment. This study is intended to develop a geographic information system for computerized processing of soil maps. The pilot region of land readjustment for this study was set at a mountain area with diverse formation of soil. Cadastral maps were employed for the basis map, and the main map was prepared using the information obtained from in-situ soil survey and laboratory tests. The detailed soil maps were drawn using the geographic information system, and analyzed and compared with manually processed maps. The soil maps, in conjunction with a computer program of land readjustment design, can be applied in estimation of soil works appropriate for the given soil condition, and also in selecting the efficient construction equipments.

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A method for Measuring Positional Accuracy of Road Objects in Digital Topographic Maps (수치지도 도로사상의 위치정확도 측정방법)

  • 박수홍;구자용
    • Spatial Information Research
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    • v.7 no.1
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    • pp.119-131
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    • 1999
  • Various digital topographic maps including 1:1,000 and 1:5,000 have been produced for years and these digital maps are expected to serve a wide range of purposes. Most previous research about measuring positional accuracy for digital topographic maps depends int a method that acquires sample points from the tested map and compares to the corresponding known true locations using some statistics. Recently, a simple method for measuring positional accuracy for linear features is introduced but it has substantial problems applying to the spatial features such as roads, railroads, streams represented with double lines on the recently produced 1:1,000 and 1:5,000 digital topographic maps. This study develops and implements an effective method that measures road objects represented in the 1:5,000 digital topographic maps using a conventional GIS software. We also apply this method to a small study area located in Kangnam Gu, Seoul and illustrate the usefulness of this method.

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Status, Distribution, Conservation and Use Value of Medicinal and Aromatic Plants (MAPs) in Sagarmatha National Park, Nepal

  • Gaire, Damodar
    • Journal of Forest and Environmental Science
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    • v.30 no.3
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    • pp.253-258
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    • 2014
  • The study attempts to assess the status, distribution, conservation and use value of Medicinal and Aromatic Plant (MAPs) in the Sagarmatha National Park. Altogether 62 species of MAPs belonging to 47 genera and 33 families have been recorded in the study area. 10 species, belonging to 9 families are categorized as the potential species. Out of the these species, most potential in local but threatened species are Allium hypsistum Stearn, Cordyceps sinensis Sacc, Dactylorhiza hatagirea Soo, Nardostachys grandiflora DC, Aconitum orochryseum, Ephedra gerardiana Wall. Ex. Stapf, Swertia multicaulis D. Don, Picrorhiza scrophulariflora Penne, Rheum australe. D. Don, Malva verticillataL and Swertia pedicallata Benerji. By analysis of data using Simpson's diversity index (SI) and Shannon weaver function (H'), there was high diversity (more heterogeneous) MAPs species composition in the Manjo Gate to Large Dobhan. (0.98349). Less diversity (less heterogeneous) MAPs species composition was in Tyanboche to Pangoche (0.90419). Similarly, the Shannon weaver function shows that in plots laying out in Mongla to Phorche are evenly distributed than others However, higher MAPs species (i.e., 31) was found in the way of Manjo Gate to Larja Dobhan than others.

Depth Map Enhancement and Up-sampling Techniques of 3D Images for the Smart Media (스마트미디어를 위한 입체 영상의 깊이맵 화질 향상 및 업샘플링 기술)

  • Jung, Jae-Il;Ho, Yo-Sung
    • Smart Media Journal
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    • v.1 no.3
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    • pp.22-28
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    • 2012
  • As the smart media becomes more popular, the demand for high-quality 3D images and depth maps is increasing. However, performance of the current technologies to acquire depth maps is not sufficient. The depth maps from stereo matching methods have low accuracy in homogeneous regions. The depth maps from depth cameras are noisy and have low-resolution due to technical limitations. In this paper, we introduce the state-of-the-art algorithms for depth map enhancement and up-sampling from conventional methods using only depth maps to the latest algorithms referring to both depth maps and their corresponding color images. We also present depth map enhancement algorithms for hybrid camera systems in detail.

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Small Scale Map Projection and Coordinate System Improvement in Consideration of Usability and Compatibility

  • Choi, Byoung Gil;Na, Young Woo;Jung, Jin Woo
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.34 no.2
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    • pp.171-183
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    • 2016
  • Small-scale maps currently used are made by scanning and editing printed maps and its shortcoming is accumulated errors at the time of editing and low accuracy. TM projection method is used but its accuracy varies. In addition, small-scale maps are made without consideration of usability and compatibility with other scale maps. Therefore, it is necessary to suggest projection and coordinates system improvement methods in consideration of usability and compatibility between data. The results of this study reveal that in order to make the optimum small-scale map, projection that fits the purpose of map usage in each scale, coordinate system and neat line composition should be selected in consideration of interrelation and compatibility with other maps. Conic projection should be used to accurately illustrate the entire country, but considering usability and compatibility with other maps, traversing cylindrical projection should be used instead of conic projection. For coordinates system of the small-scale map, Universal Transverse Mercator (UTM-K) based on the World Geodetic System should be used instead of conventional longitude and latitude coordinate system or Transverse Mercator.

Characteristics and Growth of Media Maps in Korean Newspapers (우리나라 신문에 나타난 미디어 지도의 성장과 특성에 관한 연구)

  • 장영진
    • Journal of the Korean Geographical Society
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    • v.38 no.1
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    • pp.127-140
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    • 2003
  • This study attempts to summarize the progress of Journalistic Cartography and to investigate the quantitative growth and the transition of the forms and contents of the media maps in Korean newspapers. And this study examines the characteristics of media maps with the technological development. The results of this study are summarized as follows. First, 'Jigujeondo' in Hanseongsunbo in 1880s is the first media map in Korea. Secondly, the number of the media maps in Korean newspapers is influenced by the political and economic environments. As the time goes, the contents of the media maps have been raried. Thirdly, the representation of the media maps has their own special characteristics according to the technological developments from the handwriting to CTS.

Text Region Extraction Using Pattern Histogram of Character-Edge Map in Natural Images (문자-에지 맵의 패턴 히스토그램을 이용한 자연이미지에세 텍스트 영역 추출)

  • Park, Jong-Cheon;Hwang, Dong-Guk;Lee, Woo-Ram;Jun, Byoung-Min
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.7 no.6
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    • pp.1167-1174
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    • 2006
  • Text region detection from a natural scene is useful in many applications such as vehicle license plate recognition. Therefore, in this paper, we propose a text region extraction method using pattern histogram of character-edge maps. We create 16 kinds of edge maps from the extracted edges and then, we create the 8 kinds of edge maps which compound 16 kinds of edge maps, and have a character feature. We extract a candidate of text regions using the 8 kinds of character-edge maps. The verification about candidate of text region used pattern histogram of character-edge maps and structural features of text region. Experimental results show that the proposed method extracts a text regions composed of complex background, various font sizes and font colors effectively.

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Hybrid High-Density Depth Map Generation Using 360-Degree Camera Images (360 카메라 이미지를 통한 하이브리드 고밀도 Depth Map 생성)

  • WooSung Shin;WooRi Han;Yong Hwan Lee;YoungSeop Kim
    • Journal of the Semiconductor & Display Technology
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    • v.23 no.4
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    • pp.172-176
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    • 2024
  • In modern applications such as virtual reality (VR), augmented reality (AR), and autonomous vehicles, the accuracy and reliability of Depth Maps play a critical role in enhancing user experience and optimizing system performance. These applications fundamentally rely on Depth Maps for visual information processing, interaction, and decision-making. While 360-degree cameras have emerged as an innovative solution, offering comprehensive visual coverage of the surrounding environment, current technologies face significant challenges in efficiently processing large volumes of data and generating precise Depth Maps. This study addresses the critical role of Depth Maps in VR, AR, and autonomous vehicles, proposing a novel hybrid depth estimation framework. The framework combines patch-based depth estimation with Vision Transformers (ViT) to enhance the accuracy and reliability of Depth Maps in 360-degree imaging applications. Patch-based depth estimation leverages Structure from Motion (SFM) to improve local spatial precision, while ViTs address distortions caused by wide field-of-view projections and learn global features. By integrating these approaches, the framework improves the accuracy and resolution of Depth Maps, enabling the generation of dense 3D point clouds for detailed spatial representation and reconstruction. This method overcomes challenges of computational complexity and accuracy, marking significant advancements in 360-degree imaging technology for immersive and autonomous systems.

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A Study on the Current Status and Utilization of Old Map in Library and Museums in Korea (국내 도서관·박물관 소장 고지도의 현황 및 활용에 관한 연구)

  • Gi Young Kim
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.35 no.1
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    • pp.97-125
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    • 2024
  • The purpose of this study is to increase access to information on old maps and to discuss efficient ways to utilize old maps, such as providing services and information using old maps. To this end, the information search system of domestic institutions that provide old map information was investigated, and methods of searching for old map data and accessing information were searched on the website. In addition, the current status of the collection of old maps in domestic libraries and museums was analyzed by referring to the homepage, book, research book, and publication of each institution. As a result of the analysis, about 2,200 old maps were housed in 76 institutions, including national, public, and university libraries and museums nationwide. Each institution in the collection of old maps was carrying out publication business, such as publication of English manuscripts, exhibitions and books, publication of research document edits such as lists and summaries. However, reading and using of original documents are limited due to the rare nature of old maps and the data characteristics of the only one. In order to effectively utilize old maps, first, it is necessary to improve access to old map information services and expand academic information services. Second, it is proposed to use old maps as data for archival construction that reflects the identity of the region. Third, it is necessary to cultivate professional manpower who selects and provides information based on knowledge of old map data and humanities literacy.