• 제목/요약/키워드: Image Collection Planning

검색결과 28건 처리시간 0.023초

휴리스틱 기법을 적용한 촬영계획 최적화에 대한 연구 (Development of Image Collection Planning Optimization Using Heuristic Method)

  • 배희진;전정남;채태병
    • 대한원격탐사학회지
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    • 제28권4호
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    • pp.459-466
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    • 2012
  • 위성영상 운영은 주문접수, 촬영계획, 영상처리, 영상 배포의 과정으로 구분하며 촬영계획은 주문 접수 과정에서 전달된 신규 주문과 이미 진행 중인 주문을 바탕으로 한정된 위성자원을 최대한 활용하여 사용자의 촬영요청을 가능한 적절한 시기에 반영할 수 있도록 위성의 촬영계획을 수립하는 과정으로 위성 자원의 효율적인 활용이라는 취지와 가장 밀접한 관계를 갖는 과정에 해당한다. 촬영계획은 동시에 많은 변수를 고려해야 하기 때문에 연산량도 많은 편이며, 스케줄링을 수행할 때마다 동일한 과정을 반복적으로 수행해야 한다. 본 논문에서는 촬영계획의 효율성을 높이기 위해 촬영계획의 최적화 연구를 수행하였다. 먼저 촬영계획 수행과정과 제약조건을 정리하여 가능한 많이 촬영할 수 있도록 촬영계획 모형을 수립하고 그 모형을 해결하기 위해 휴리스틱 알고리즘을 제안하였다.

A Study on Automation of Image Collection Planning

  • Han, Jae-Joong;Jung, Kyung-Jin;Choi, Jae-Seung;Kwak, Sung-Hee;Kim, Moong-Yu
    • 대한원격탐사학회지
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    • 제27권6호
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    • pp.743-752
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    • 2011
  • One of main concerns of operators of the Earth observation satellite is taking images as many as possible under the constraints of satellite resources during fixed period. In order to achieve this goal, satellite operators are strongly required to generate the optimized image collection plans, and it is a very time consuming process to achieve an optimized image collection plan when it is done by manual. This paper suggests automation of image collection planning based on the dynamic programming algorithm to reduce the time required for image collection planning. The validity of the proposed method is tested using operating satellite system and the result is given in this paper.

IMAGE COLLECTION PLANNING ALGORITHM FOR SINGLE PASS STEREO IMAGING

  • Kang, Chi-Ho;Ahn, Sang-II;Cheon, Yee-Jin
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2008년도 International Symposium on Remote Sensing
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    • pp.255-258
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    • 2008
  • The DEM (Digital Elevation Model) can be obtained from stereo image pair acquired by LEO satellite. Stereo images may consist of at least two images with different viewing angles to the imaging target for one pass or multiple passes. While each image is generally acquired from each pass in cross-track direction for multiple passes, stereo image pair in along-track direction can be acquired during one pass with attitude control capability for the pitch axis of the satellite. Single pass stereo imaging provides stereo pair image more efficiently on the fact that stereo pair image is generated with less orbit resources and less imaging time consumption. In this paper, the feasibility study result on the stereo pair image collection planning algorithm during single pass is addressed.

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아리랑위성 2호 영상촬영계획 궤도예측 정밀도 분석 (Analysis on the Orbit Prediction Accuracy of the Image Collection Planning for KOMPSAT-2)

  • 정옥철;김해동;정대원
    • 항공우주기술
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    • 제7권1호
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    • pp.223-228
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    • 2008
  • 본 논문에서는 아리랑위성 2호의 영상촬영 계획 절차를 살펴보고, 각 단계에서 발생할 수 있는 궤도예측 오차를 분석하였다. 이를 위해 영상촬영 계획을 수립하는 PSS와 명령계획을 작성하는 MAPS에서 각각 계산된 자세정보를 상호 비교하여 궤도예측 오차의 원인을 규명하였다. 또한, 아리랑위성 2호의 실제 영상자료를 이용하여 촬영된 영상의 중심점과 미리 계획된 목표지점 사이의 이탈거리인 촬영 지향오차를 계산하였다. 영상촬영 계획은 실제 촬영일보다 이전에 수행되어 궤도예측 오차를 어느 정도 포함하게 되므로, 영상촬영 계획 시 일정한 Margin을 적용해야 할 것으로 판단된다.

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Sorting for Plastic Bottles Recycling using Machine Vision Methods

  • SanaSadat Mirahsani;Sasan Ghasemipour;AmirAbbas Motamedi
    • International Journal of Computer Science & Network Security
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    • 제24권6호
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    • pp.89-98
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    • 2024
  • Due to the increase in population and consequently the increase in the production of plastic waste, recovery of this part of the waste is an undeniable necessity. On the other hand, the recycling of plastic waste, if it is placed in a systematic process and controlled, can be effective in creating jobs and maintaining environmental health. Waste collection in many large cities has become a major problem due to lack of proper planning with increasing waste from population accumulation and changing consumption patterns. Today, waste management is no longer limited to waste collection, but waste collection is one of the important areas of its management, i.e. training, segregation, collection, recycling and processing. In this study, a systematic method based on machine vision for sorting plastic bottles in different colors for recycling purposes will be proposed. In this method, image classification and segmentation techniques were presented to improve the performance of plastic bottle classification. Evaluation of the proposed method and comparison with previous works showed the proper performance of this method.

구술사료의 기록학적 관리방법 연구 (A Study on Archival methodology for Oral History Management)

  • 권미현
    • 기록학연구
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    • 제10호
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    • pp.112-144
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    • 2004
  • Oral history has value that steps over the class consciousness and party feeling that records have, and enables a general representation of a human experience. Beside, It must be managed urgently because a collection of oral history has unique and limited. However, domestic related institution do not keep management for release and use of oral history in their mind are only concentrating on accession. Lately, National History Compilation Committee passes through faithful planning procedures and is collecting an oral history collection project. A merit of this project is to have attempted an image photographing. This study is propose that to examines over the all steps to say oral history collection activity to information service and a preservation from collection planning of organization. However, this study is insufficient in the management method how it is connected if does in order to manage the oral history which is collected with a part of a record in a archival institution because this study was only for the purpose of management of oral history. This problem will be studied through a process of checking the real thing of oral history. This study proposed general methodology for oral history management, if institution had a plan of collection and management or had some collection result.

커넥티드 차량 보급률 기반 고속도로 돌발상황 검지시간 추정 (Estimation of Incident Detection Time on Expressways Based on Market Penetration Rate of Connected Vehicles)

  • 남상기;정연식;김회경;김원길
    • 한국ITS학회 논문지
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    • 제22권3호
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    • pp.38-50
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    • 2023
  • 최근 인공지능 (Artificial Intelligence: AI) 기술 발전으로 폐쇄회로 TV(Closed-Circuit television: CCTV)와 같은 영상 센서에 AI 기술을 도입하여 특정 돌발상황을 검지하고 있으나 대부분 고정식 장비 기반으로 돌발상황 검지가 진행되어왔다. 따라서 모든 도로 공간에 대한 돌발상황 검지에는 한계가 존재해왔다. 그러나 영상 센서와 edge-computing 기술 등의 발전으로 이동식 영상정보수집 및 분석 기술이 확산되고 있다. 본 연구는 이러한 이동식 영상 수집 및 분석 장비(커넥티드 차량)의 도입 수준에 따른 돌발상황 검지시간 감소효과를 추정하는 것이 목적이다. 이를 위해 2021년 경부고속도로 수원지사에서 수집된 돌발상황 발생 건수 자료를 활용하였다. 분석 결과 편도 2차로 고속도로는 커넥티드 차량의 보급률(Market Penetration Rate: MPR)이 4% 이상, 편도 3차로 고속도로는 3% 이상이면 돌발상황 검지 시간이 1분 이하로 나타났고, 편도 2차로와 편도 3차로 고속도로에서 MPR이 각각 0.4% 이상, 0.2% 이상이면 한국도로공사에서 발표한 평균 돌발상황 검지시간 보다 감소하는 것으로 나타났다.

에스닉 패션 유형별 메이크업 특성에 관한 연구 (A Study on the Characteristics of Makeup by Ethnic Fashion Type)

  • 오세희;최해주
    • 복식
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    • 제61권2호
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    • pp.116-130
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    • 2011
  • Ethnic fashion and makeup were studied. 264 fashion designs from pret-$\`{a}$-porter collections in Milan and New York from 2001 S/S to 2005 F/W were analyzed. The major conclusions of the study are as the following: 1. The major types of ethnic fashion and makeup were Africa. American Indian. Japan, India. China and Inca. Makeup types expressed in ethnic fashion were soft smoky, smoky, retro, nature, avant-garde, eastern. 2. Makeup types expressed in ethnic fashion were used for the image for the designer's collections rather than ethnic features. Soft smoky and smoky makeup types were more used than others. 3. Soft smoky makeup types were more expressed in S/S seasons than in F/W seasons. In F/W seasons soft smoky and smoky makeup types were more expressed than other types. 4. Soft smoky and smoky makeup types were more expressed than others in Milan and New York collections commonly. 5. To emphasize the ethnic image for ethnic fashion, ethnic makeup arts like China, Japan, India, Africa, American Indian, Inca makeup arts and soft smoky, smoky makeup arts were represented.

타투 패션에 따른 패션감성과 감정연구 (Study on Fashion Sensibility and Emotion through Tattoo Fashion)

  • 김미영;이경희
    • 한국의류학회지
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    • 제31권3호
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    • pp.331-342
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    • 2007
  • The objective of this study is to provide the basis to planning the design of commercial products and effective image coordination for various situation in investigating the existence of Tattoo with an examination of fashion sensibilities and emotions as well as in analyzing Tattoo fashions which have an effect on the unique image coordinations in the fashion collection. Stimulus pictures have collected from fashion photographs appeared Tattoo expression released on the fashion collection and selected 35 pieces of pictures out of total through the analysing process in many times. Valuation tools have used with 19 pairs of adjective as fashion sensibilities valuation tool and 13 questionnaire as emotion valuation tool. Data has been collected from August 30th to September 17th on the subject of 20's men and women who live in Busan city area and those data has been analyzed by using SPSS statistics package program. The summary and conclusion of verified outcomes on this study are as follows: 1. Main factors of fashion sensibilities about Tattoo fashion are composed of three factors, such as Attractiveness, Visibility, Maturity and those factors have explained by 60.9%. On the other han, the fashion emotions are composed of negative emotion and positive emotion and explained by 66.3%. 2. The image of Tattoo fashion has shown four groups; Sexy, Romantic, Grotesque, Natural. 3. The positioning according to the image of Tattoo fashion has interpreted that X-axis as Grotesque-Romantic, Y-axis as Simple-Dazzling according to design features.

형태생성과정에서 색채의 역할에 관한 연구 (A Study on the role of color in the process of form Creation)

  • 이선민;이민석
    • 한국실내디자인학회논문집
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    • 제17권5호
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    • pp.123-132
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    • 2008
  • It would be investigated how to take advantage of and structure color as form creation of modern architecture and tool of conception. Through this study, it was analyzed that color was introduced actively in the beginning stage of form creation as an image, as collection of data and analysis system, and as creation system of diagram. Also, it was used from the model making stage with experimental device, and was handling to experimental system of various materials and substances. Therefore, with the characteristics of color's originality, color was dealt to space creation system by tool from the process-oriented thought and had given the absolute value in form creation process. Meaning is that the color to be used as a tool in the planning contains a lot of possibilities and values in the architecture planning. Therefore the development of the system without initial planning of overall color scheme could affect the harmony and integration of the developed architecture. And the system could loose many vital concepts in the creation of the form. In execution of thinking process through the color, it'll be ensured that we can acquire the much better and more various result.