CIFASIS 20631
CENTRO INTERNACIONAL FRANCO ARGENTINO DE CIENCIAS DE LA INFORMACION Y DE SISTEMAS
Unidad Ejecutora - UE
artículos
Título:
Astroalign: A Python module for astronomical image registration
Autor/es:
BEROIZ, M.; SANCHEZ, B.; CABRAL, J.B.
Revista:
Astronomy and Computing
Editorial:
Elsevier
Referencias:
Año: 2020
ISSN:
2213-1337
Resumen:
We present an algorithm implemented in the Astroalign Python module for image registration in astronomy. Our module does not rely on WCS information and instead matches three-point asterisms (triangles) on the images to find the most accurate linear transformation between them. It is especially useful in the context of aligning images prior to stacking or performing difference image analysis. Astroalign can match images of different point-spread functions, seeing, and atmospheric conditions.
