Quality Assessment of Four DEMs Generated Using In-Track KOMPSAT-3 Stereo Images
المؤلفون المشاركون
Oh, Kwan-Young
Lee, Kwangjae
Kim, Younsoo
Jeong, Eui-Cheom
المصدر
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-06-13
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
The purpose of this research was to analyze the quality and characteristics of four digital elevation models (DEMs) generated using in-track Korea Multi-Purpose Satellite (KOMPSAT)-3 stereo images.
The sensor modeling methods were based on ground control points (GCPs), the initial rational polynomial coefficients (RPCs), relative adjustment, and the automatic bias-compensation method.
The GCPs and check points (CPs) were extracted from the 0.25 m aerial orthoimage and the 5 m DEM provided by the National Geographic Information Institute (NGII).
The DEMs had the same resolution as the reference DEM (5 m) and comparative analysis was carried out.
The results indicate that when relative adjustment was applied alone (DEM 3), the percentage of matched points with a correlation of 0.8 or more was improved by at least 17% compared to the case where only initial RPCs were used (DEM 2).
Although the absolute horizontal position error of DEM 3 could not be eliminated, the relative elevation error at the same position was reduced significantly.
Therefore, if the relative positions of DEMs produced at different times can be corrected, they can be used for the detection of changes in altitude.
When applying the automatic bias-compensation method (DEM 4) without GCPs, the percentage of matched points with a correlation of 0.8 or more was 70.1%.
When GCPs were used (DEM 1), the value was 70.2%, i.e., almost identical to that of DEM 4.
The mean difference in resolution among DEMs 1 and 4 was -1.8 ± 3.4 m (median, -1.0 m).
The results show that DEMs of sufficient quality can be generated without GCPs.
Furthermore, although discrepancies among the DEMs were noted in forest and shadow areas, it is possible to produce a 5~10 m resolution DEM by using additional image processing techniques, such as shadow removal.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Oh, Kwan-Young& Lee, Kwangjae& Jeong, Eui-Cheom& Kim, Younsoo. 2019. Quality Assessment of Four DEMs Generated Using In-Track KOMPSAT-3 Stereo Images. Journal of Sensors،Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1187321
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Oh, Kwan-Young…[et al.]. Quality Assessment of Four DEMs Generated Using In-Track KOMPSAT-3 Stereo Images. Journal of Sensors No. 2019 (2019), pp.1-12.
https://search.emarefa.net/detail/BIM-1187321
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Oh, Kwan-Young& Lee, Kwangjae& Jeong, Eui-Cheom& Kim, Younsoo. Quality Assessment of Four DEMs Generated Using In-Track KOMPSAT-3 Stereo Images. Journal of Sensors. 2019. Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1187321
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1187321
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر