کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10694309 | 1020036 | 2015 | 17 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An optimized orbital parameters model for geometric correction of space images
ترجمه فارسی عنوان
یک مدل پارامتر بهینه برای تصحیح هندسی تصاویر فضایی
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
مدل پارامترهای مدار، ارزیابی اجزای متغیر، همبستگی، وزن ماتریس، مشاهدات چهارگانه،
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم فضا و نجوم
چکیده انگلیسی
The Orbital Parameters Model (OPM) is a physically constrained model for geometrical correction of satellite images with dynamic geometry. In this model, Keplerian parameters are used to establish an exact relationship between image space and object space. However, insufficient information regarding the precision of the observed Keplerian elements requires certain complementary parameters to be imposed on the model. These parameters lead to an undesirable increase in the number of required Ground Control Points (GCPs). To overcome this problem, unknown parameters may be introduced as quasi-observations in the adjustment procedure. This paper demonstrates that quasi-observation weights have a large impact on the OPM solution. For the first time, a Variance Components Estimation (VCE) technique is used to optimize the weights of quasi-observations when information on their observed precision is lacking. The proposed method is evaluated on two different SPOT datasets and one RapidEye dataset of stereo images. The results demonstrate the efficiency of VCE-based OPM where the highest expected accuracy of 3D information is reached even with three or four GCPs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Space Research - Volume 55, Issue 5, 1 March 2015, Pages 1328-1338
Journal: Advances in Space Research - Volume 55, Issue 5, 1 March 2015, Pages 1328-1338
نویسندگان
Alireza Safdarinezhad, Mohammad Javad Valadan Zoej,