کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10359996 869580 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Automatic normalization of satellite images using unchanged pixels within urban areas
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر چشم انداز کامپیوتر و تشخیص الگو
پیش نمایش صفحه اول مقاله
Automatic normalization of satellite images using unchanged pixels within urban areas
چکیده انگلیسی
Radiometric normalization is often required in remote sensing image analysis particularly in land change analysis. The normalization minimizes different imaging condition effects in analysis and rectifies radiometry of images in such a way as if they have been acquired at the same imaging conditions. Relative radiometric normalization which is normally applied in image preprocessing stage does not remove all unwanted effects. In this paper, an automatic normalization method has been developed based on regression applied on unchanged pixels within urban areas. The proposed method is based on efficient selection of unchanged pixels through image difference histogram modeling using available spectral bands and calculation of relevant coefficients for dark, gray and bright pixels in each band. The coefficients are applied to produce the normalized image. The idea has been implemented on two TM image datasets. The capability of the approach in taking into account the imaging condition differences and effectively excluding real land change pixels from the normalization process has shown better performance in the evaluation stage.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Information Fusion - Volume 6, Issue 3, September 2005, Pages 235-241
نویسندگان
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