Landsat TM 영상을 이용한 영광 연안의 양식장 정보 추출

DC Field Value Language
dc.contributor.author 안유환 -
dc.contributor.author Shanmugam -
dc.contributor.author 유홍룡 -
dc.date.accessioned 2020-07-17T11:31:07Z -
dc.date.available 2020-07-17T11:31:07Z -
dc.date.created 2020-02-11 -
dc.date.issued 2004-03-26 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/31965 -
dc.description.abstract The objective of the present study is to compare various conventional and recently evolved satellite image-processing techniques and to ascertain the best possible technique that can identify and position of aquaculture farms accurately in and around the Younggwang coastal area. Several conventional techniques performed to extract such information from the Landsat-TM imagery do not seem to yield better information about the aquaculture farms, and lead to misclassification. The large errors between the actual and extracted aquaculture farm information are due to existence of spectral confusion and inadequate spatial resolution of the sensor. This leads to possible occurrence of mixture pixels or “mixels” of the source of errors in the classification techniques. Understanding the confusing and mixture pixel problems requires the development of efficient methods that can enable more reliable extraction of aquaculture farm information. Thus, the more recently evolved methods such as the step-by-step partial spectral end-member extraction and linear spectral unmixing methods are introduced. The farmer one assumes that an end-member, which is often referred to as “spectrally pure signature” of a target feature, does not appear to be a spectrally pure form, but always mix with the other features at certain proportions. The assumption of the linear spectral unmxing is that the measured reflectance of a pixel is the linear sum of the reflectance of the mixture components that make up that pixel. The classification accuracy of the step-by-step partial end-member extraction improved significantly compared to that obtained from the traditional supervised classifiers. However, this method did not distinguish the aquaculture ponds and non-aquaculture ponds within the region of the aquaculture farming areas. In contrast, the linear spectral unmixing model produced a set of fraction images for the aquaculture, water and soil. Of these, the aquaculture fraction yields good estim -
dc.description.uri 2 -
dc.language English -
dc.publisher 대한원격탐사학회 -
dc.relation.isPartOf 2004 GIS/RS 공동춘계학술대회 -
dc.title Landsat TM 영상을 이용한 영광 연안의 양식장 정보 추출 -
dc.title.alternative Extraction of the aquaculture farms information from the Landsat-TM imagery of the Younggwang coastal area -
dc.type Conference -
dc.citation.conferencePlace KO -
dc.citation.endPage 498 -
dc.citation.startPage 493 -
dc.citation.title 2004 GIS/RS 공동춘계학술대회 -
dc.contributor.alternativeName 안유환 -
dc.contributor.alternativeName Shanmugam -
dc.contributor.alternativeName 유홍룡 -
dc.identifier.bibliographicCitation 2004 GIS/RS 공동춘계학술대회, pp.493 - 498 -
dc.description.journalClass 2 -
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