[صفحه اصلی ]   [Archive]  
:: صفحه اصلي :: درباره نشريه :: آخرين شماره :: تمام شماره‌ها :: جستجو :: ثبت نام :: ارسال مقاله :: تماس با ما ::
:: دوره 9، شماره 34 - ( 9-1397 ) ::
جلد 9 شماره 34 صفحات 55-63 برگشت به فهرست نسخه ها
Extraction of coastlines from satellite images using sub-pixel algorithms
علیرضا تیل کو*، سیدمصطفی سیادت موسوی، برات مجردی
چکیده:   (395 مشاهده)
Abstract
Coastal environments are always under the pressure of natural processes such as erosion, sedimentation, natural disasters as well as human projects. These threats have made coastal areas a priority for coastline monitoring and sustainable coastal management programs. In this paper, algorithms for separating water and land boundaries as well as new sub-pixel methods are presented with the aim of dividing large pixels (with low resolution and spatial accuracy) into smaller pixels and creating a classified map with better spatial resolution. Different water identification indices and machine learning algorithms were investigated, and two models of Spatial Attraction Models were implemented. Results showed that the Sub-pixel / Sub-pixel Spatial Attraction Model had more capacity in providing higher resolution and precision, while provided 10% reduction in error when compared with observations. To skill assess these two methods, the difference in areas created by each method compared to the reference shoreline (high resolution aerial image) was computed. Also, in order to accurately evaluate and show the high accuracy of sub-pixel algorithms, the results of these algorithms should be examined by conventional classification methods. The creation of such models is proposed to support integrated coastal management in the Persian Gulf region for future studies.
متن کامل [PDF 668 kb]   (35 دریافت)    
نوع مطالعه: كاربردي | موضوع مقاله: بیولوژی و بیوتکنولوژی دریا
دریافت: 1399/12/5 | پذیرش: 1397/9/27 | انتشار الکترونیک: 1397/9/27


XML   English Abstract   Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Tilkoo A, Siadatmousavi S M, Mojaradi B. Extraction of coastlines from satellite images using sub-pixel algorithms. JPG. 2018; 9 (34) :55-63
URL: http://jpg.inio.ac.ir/article-1-621-fa.html

تیل کو علیرضا، سیادت موسوی سیدمصطفی، مجردی برات. Extraction of coastlines from satellite images using sub-pixel algorithms. نشریه علمی پژوهشی خلیج فارس. 1397; 9 (34) :55-63

URL: http://jpg.inio.ac.ir/article-1-621-fa.html



دوره 9، شماره 34 - ( 9-1397 ) برگشت به فهرست نسخه ها
نشریه علمی پژوهشی خلیج فارس Journal of the Persian Gulf
Persian site map - English site map - Created in 0.08 seconds with 29 queries by YEKTAWEB 4312