• Title/Summary/Keyword: 사진영상

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Retrieving of Compositionally Similar Images Using Straight Line Elements (직선 성분을 이용하는 구도가 유사한 사진 검색 방법)

  • Hwang, Joo-Yeon;Lim, Dong-Sup;Paik, Doo-Won
    • Journal of Korea Multimedia Society
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    • v.12 no.11
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    • pp.1539-1546
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    • 2009
  • According to photography, lines are important elements that make composition and mood of photo. In this paper, we proposed a measure for compositional dissimilarity between photos using lines which are basic elements of photography. To identify patterns of lines which classify composition of photos, we investigated both features of compositionally same photos and compositionally different photos. Then we developed effective measure for compositional dissimilarity between photos by applying the investigated features to the measure, and we implemented an image searching system which retrieves photo compositionally similar to given query to evaluate performance of proposed method. The searching system showed the precision of about 85% maximally for the highly matched 10 results and was capable of reliably retrieving compositionally similar to given query even if some objects were included in photos.

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3D Image Restitution of Weolmido by using Old Maps and Photos (고지도와 사진에 의한 월미도의 3차원 영상 복원)

  • Park, Kyeong-Sik
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.28 no.1
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    • pp.117-124
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    • 2010
  • Lots of changes in Weolmido have occurred in the historical and cultural aspects owing w the geographical features. This study aims at restoring Weolmido to the past shape three-dimensionally and analyzing its changes. For achieving this goal, I made use of paper maps made in 1918, 1928, and 1969, a digital map produced in 2008, and aerial photos photographed in 1954. And I attempted to grasp the architectural shape and the topographical limn by using photos in those times and put them to practical use for restitution. Image restitution was carried out under the method of mapping and photogrammetry. As the result of restitution, I could restore each shape of Weolmido for those past times to the original condition three-dimensionally and catch its changes according to the difference of times.