Evaluation of spectral similarity indices in unsupervised change detection approaches
نویسندگان
چکیده
منابع مشابه
Combining of Magnitude and Direction of Change Indices to Unsupervised Change Detection in Multitemporal Multispectral Remote Sensing Images
In remote sensing, image-based change detection techniques, analyze two images acquired over the same area at different times t1 and t2 to identify the changes occurred on the Earth's surface. Change detection approaches are mainly categorized as supervised and unsupervised. Generating the change index is a key step for change detection in multi-temporal remote sensing images. Unsupervised chan...
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15 صفحه اولAn Unsupervised Change Detection Algorithm Based on Spectral Signature Analysis in Multispectral Images
In this work an innovative unsupervised change detection technique for multispectral and hyperspectral images is proposed. It consists in the comparison between two co-registered and radiometrically correct multispectral images, carried out by comparing pixels’ spectral signatures. Supposing a change is occurred, we can state that the spectral vector associated to a pixel in the “changed image”...
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ژورنال
عنوان ژورنال: DYNA
سال: 2018
ISSN: 2346-2183,0012-7353
DOI: 10.15446/dyna.v85n204.68355