• 제목/요약/키워드: geographical images

검색결과 142건 처리시간 0.026초

Electromagnetic Field and the Poetry of Ezra Pound

  • Ryoo, Gi Taek
    • 영어영문학
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    • 제57권6호
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    • pp.939-958
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    • 2011
  • Ezra Pound has an idea of poetry as a field of energy in which words interact with each other with kinetic energy. The energy field which Pound creates in his poem is analogous to the theory of electromagnetism developed by Michael Faraday and James Maxwell, who look upon the space around magnets, electric charges and currents not as empty but as filled with energy and activity. Pound argues that "words are charged with force like electricity," demonstrating that words charged with their own images or energies of positive or negative valence interact one another. This idea is similar to Faraday's concept of "line of force" which he used to represent the disposition of electric and magnetic forces in space. Pound's concept of "image" as an "intellectual and emotional complex in an instant" is remarkably consonant with the confluence of electric and magnetic fields that are coupled to each other as they travel through space in the form of electromagnetic waves. The instant profusion of conception and perception, much like that of electric and magnetic fields, enables Pound to move beyond the sequential and linear hierarchy in time and space. Particularly, Maxwell's stunning discovery that the electromagnetic waves propagate in space at 'the speed of light' has allowed Pound a relativistic sense of escape from the limitations of Newtonian absolute time and space. Pound's poetry transcends any geographical space and sequential time by rendering and juxtaposing images simultaneously. Pound was fully aware of light and electricity fundamental to what he called his world "the electric world." Pound's experiments in Imagism and Vorticism can be considered an attempt to rediscover a place for poetry in the modern world of science and technology. Almost all the appliances that we think of today as modern were laid down in the closing decades of the 19th century and the first decades of the 20th century, in response to the availability of electromagnetic energy. This paper explores how Pound responded to the age of modern technology and science, examining his conception of "image" through his many analogies and similes drawn from electromagnetism. Pound's imagist poetics and poetry come to embody, not only the characteristics of the electric age in the early twentieth century, but the principles of electromagnetism the electric age is based upon.

Table Mediator: 정보검색과 테이블톱으로 구현된 디지털스토텔링 시스템 (Table Mediator: Digital Storytelling System based on Information Retrieval and Tabletop)

  • 조현상;장관;박성수;한민수
    • 한국HCI학회:학술대회논문집
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    • 한국HCI학회 2008년도 학술대회 1부
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    • pp.493-498
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    • 2008
  • We proposed "Table Mediator" which is a tabletop system for digital storytelling that uses web-retrieved information for the students' educational field trip. Students can perform their storytelling for their virtual pre-field trip to build up a sequential path as a story with web-retrieved documents, satellite images, geographical information, and group discussion. The proposed system was designed to lessen the limitation of individual interaction such as restricted viewpoint and biased inclination by group digital storytelling. Local interactions also have the limitation such as insufficient information and knowledge and the system supplied the rich live information such as subjective critiques or recently discovered history, or new updates for building a story that makes users arrange their own idea as a consistent story to lessen the limitation of the local interactions. The system can be used for various applications such as travel, education and other collaborative works with group interaction.

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한국 내륙습지 경계설정에 대한 제언 (A Study on Korea Inland Wetland Boundary Delineation)

  • 문상균;구본학
    • 한국환경복원기술학회지
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    • 제17권2호
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    • pp.15-30
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    • 2014
  • Systematic management of wetlands should be a priority to build the data for the extent and distribution of wetlands all over the country. However there are no clear guidelines for the wetland boundary delineation, so researchers have to determine the boundary of wetlands in each different way. As a result, it is very difficult to identify the extent and distribution of wetlands. This study proposes applicable criteria of setting boundary of wetlands which consider their wetland vegetation and geographical characteristics, according to wetland classification. The proposed site in this study is selected wetlands that represent each wetland type and have been ecologically well preserved like the wetland protected areas. GIS data for setting the boundary of wetlands selected were land-cover maps, aerial photographs, high resolution satellite images, and digital topographic maps. In this study, 'wetland unit determination' of the Washington State Wetlands Rating System(WSDE, 1993) and the concept of 'Wetland and Deep-water Habitats' was suggested by Wetland Delineation Manual(USACE, 1987) were used as criteria for setting the boundary of wetlands. As a result, it was found that the boundary of wetlands could be, in general, set consistently. Also, it seemed possible to set systematic and standardized boundary of wetlands and to provide more objective data for establishing national wetland policies, if maps of wetlands are made and an investigation of wetlands is implemented according to the criteria.

An Implementation of Change Detection System for High-resolution Satellite Imagery using a Floating Window

  • Lim, Young-Jae;Jeong, Soo;Kim, Kyung-Ok
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2002년도 Proceedings of International Symposium on Remote Sensing
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    • pp.275-279
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    • 2002
  • Change Detection is a useful technology that can be applied to various fields, taking temporal change information with the comparison and analysis among multi-temporal satellite images. Especially, Change Detection that utilizes high-resolution satellite imagery can be implemented to extract useful change information for many purposes, such as the environmental inspection, the circumstantial analysis of disaster damage, the inspection of illegal building, and the military use, which cannot be achieved by low- or middle-resolution satellite imagery. However, because of the special characteristics that result from high-resolution satellite imagery, it cannot use a pixel-based method that is used for low-resolution satellite imagery. Therefore, it must be used a feature-based algorithm based on the geographical and morphological feature. This paper presents the system that builds the change map by digitizing the boundary of the changed object. In this system, we can make the change map using manual or semi-automatic digitizing through the user interface implemented with a floating window that enables to detect the sign of the change, such as the construction or dismantlement, more efficiently.

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Applications of Satellite Imagery to Surveying Archeological Sites and Remains

  • 진용옥;박경윤
    • 한국위성정보통신학회논문지
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    • 제2권2호
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    • pp.75-79
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    • 2007
  • 선조의 유골 매장지와 함께 고구려 왕조($37BC{\sim}771AD$)의 산성과 이조 왕조($1392{\sim}1910AD$) 때의 봉화대와 같이 중국 동북부 지역 만주와 한반도에 산재한 유적지들의 소재지들을 확인하기 위해 위성영상을 적용했다. 이러한 유적지에 관한 정보는 여러 문헌들에서 접하게 되지만 이들 문화제의 실체들은 최근의 지역 개발 프로그램들에 의해 점차 사라지고 있는 실정이다. 이번에 답사하면서 측정한 위성위치정보(GPS) 자료를 사용하여 위성영상에서 일부 역사 유적지들의 위치를 확인해 보았다. 이들의 상세한 위치 정보는 좀 더 확인이 필요할 것으로 판단된다.

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Remote sensing and GIS technologies for route selection of 'West-East Nature Gas pipeline'

  • Zhu Xiaoge;Zhang Yaoyan;Zhang Yiming;Van Hu;Shihong Wang
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2004년도 Proceedings of ISRS 2004
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    • pp.28-30
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    • 2004
  • The West-East Nature Gas Pipeline is a great project in China. Advanced remote sensing technology combined with GIS and GPS is used to select the favorable plan from various possible routes through interpreting the information of topographic landform, regional geology, disaster geology, traffic conditions and nature environment from remote sensing images. There are a lot of changes in geographical and environmental factors along such pipelines due to the rapid development in China. Image maps produced from new satellite data can identify these changes and be used successfully not only on route-selection studies but also on in situ investigation, together with GPS. Results from detail analysis provide necessary information and parameters for plan, design and construction of the pipeline and they are also the basic data for the pipeline database. The set of techniques has been applied on planning and designing several pipelines successfully.

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SEBAL모형을 이용한 증발산량의 추정 금강 상류지역을 대상으로 (Estimation of Evapotranspiration with SEBAL Model in the Geumgang Upper Basin, Korea)

  • 유진웅
    • 한국GIS학회:학술대회논문집
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    • 한국GIS학회 2003년도 공동 춘계학술대회 논문집
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    • pp.517-522
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    • 2003
  • 증발산량의 정확한 산정은 자연현상과 인문현상을 이해하는데 있어 중요하다. 증발산량의 점추정이 갖는 한계를 극복하기 위해 원격탐사를 이용하여 증발산량을 추정하는 방법이 활발히 연구되고 있다. 이 중 SEBAL 모형은 원격탐사 자료를 이용하는 기존의 방법에 비해 소요되는 자료가 적으면서도, 증발산량을 정확하게 추정하는 방법으로 알려지고 있다. 이 연구에서는 우리나라 지형에서 SEBAL 모형의 적용 가능성을 검증하였고, 증발산량 분포의 시공간적 특성을 살펴보았다. 연구 지역은 금강 상류의 보청천 유역이며, Landsat 5 TM영상(1995년 1월 11일, 4월 1일, 5월 3일, 10월 10일, 11월 27일)을 이용하였다.

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Water Flow Model을 이용한 에지 검출 (Edge Detection Using a Water Flow Model)

  • 이건일;김인권;정동욱;송정희;곽원기;박래홍
    • 대한전자공학회논문지SP
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    • 제38권4호
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    • pp.422-433
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    • 2001
  • 본 논문에서는 영상의 그래디언트 (gradient)를 구하여 그래디언트 값의 분포를 마치 3차원 지형과 같은 개념으로 간주하고 여기에 물이 흐르는 개념을 적용한 에지 (edge) 검출 방법을 제안하였다 영상에서 그래디언트 값이 큰 부분은 배경과 객체간의 에지라 볼 수 있으며, 이 에지에 물이 고이게 하기 위해서는 반전된 그래디언트 영상을 사용한다. 반전된 그래디언트 영상에서 물의 흐름을 기반으로 한 enhancing 작업과 국부적응 임계값 적용을 실시하여 잡음을 줄인 에지 영상을 찾는 방법을 제안한다. 합성영상과 실제영상에 대한실험을 통해 제안한 방법의 효율성을 검증하였다.

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전자코를 이용한 홍삼 농축액의 원산지 판별을 위한 향기패턴 분석 (Analysis of Aroma Pattern for Geographical Origin of Red Ginseng Concentrated by Electronic Nose)

  • 허상선
    • 한국응용과학기술학회지
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    • 제37권1호
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    • pp.38-48
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    • 2020
  • 중국산과 국내산 홍삼 농축액의 혼합비율에 따는 원산지 판별 가능성을 검토하기 위해 전자코를 이용하여 향기 패턴을 분석하였다. 중국산 홍삼 농축액과 국내산 홍삼 농축액의 원산지 판별이 가능하였고 중국산 홍삼농축액의 혼합비율이 증가할수록 검출되어지는 향기 성분의 패턴은 감소하는 경향을 나타내었다. Frequency pattern, derivative pattern을 Vapor printTM 으로 도형화 하여 비교한 결과 서로 다른 패턴을 보여주어 중국산 홍삼 농축액 첨가비율에 따른 차이는 물론 원산지의 차이도 뚜렷하게 나타났다.

Estimating Leaf Area Index of Paddy Rice from RapidEye Imagery to Assess Evapotranspiration in Korean Paddy Fields

  • Na, Sang-Il;Hong, Suk Young;Kim, Yi-Hyun;Lee, Kyoung-Do;Jang, So-Young
    • 한국토양비료학회지
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    • 제46권4호
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    • pp.245-252
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    • 2013
  • Leaf area index (LAI) is important in explaining the ability of crops to intercept solar energy for biomass production, amount of plant transpiration, and in understanding the impact of crop management practices on crop growth. This paper describes a procedure for estimating LAI as a function of image-derived vegetation indices from temporal series of RapidEye imagery obtained from 2010 to 2012 using empirical models in a rice plain in Seosan, Chungcheongnam-do. Rice plants were sampled every two weeks to investigate LAI, fresh and dry biomass from late May to early October. RapidEye images were taken from June to September every year and corrected geometrically and atmospherically to calculate normalized difference vegetation index (NDVI). Linear, exponential, and expolinear models were developed to relate temporal satellite NDVIs to measured LAI. The expolinear model provided more accurate results to predict LAI than linear or exponential models based on root mean square error. The LAI distribution was in strong agreement with the field measurements in terms of geographical variation and relative numerical values when RapidEye imagery was applied to expolinear model. The spatial trend of LAI corresponded with the variation in the vegetation growth condition.