Papers › Zernike moments description of solar and astronomical features: Python code
Zernike moments description of solar and astronomical features: Python code
Hossein Safari, Nasibe Alipour, Hamed Ghaderi, Pardis Garavand
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Due to the massive increase in astronomical images (such as James Webb and Solar Dynamic Observatory), automatic image description is essential for solar and astronomical. Zernike moments (ZMs) are unique due to the orthogonality and completeness of Zernike polynomials (ZPs); hence valuable to convert a two-dimensional image to one-dimensional series of complex numbers. The magnitude of ZMs is rotation invariant, and by applying image normalization, scale and translation invariants can be made, which are helpful properties for describing solar and astronomical images. In this package, we describe the characteristics of ZMs via several examples of solar (large and small scale) features and astronomical images. ZMs can describe the structure and morphology of objects in an image to apply machine learning to identify and track the features in several disciplines.
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