Title :
Adjusting astronomical images using a censored Hausdorff distance
Author :
Paumard, José ; Aubourg, Éric
Author_Institution :
ENS de Cachan, France
Abstract :
We present in this paper a fast method to find a translation between a pair of astronomical images. Being able to match stars very precisely is necessary in numerous problems in astronomy. The method we describe here can be used to get a first estimate with a precision of a few pixels. It can be used to initiate a second method to achieve the desired sub-pixel accuracy. Implementation on a massively parallel computer has been made, showing that real-time is feasible, and the development of a specific hardware looks promising
Keywords :
astronomical techniques; astronomy computing; image processing; stars; astronomical images adjustment; censored Hausdorff distance; massively parallel computer; real-time; stars; sub-pixel accuracy; translation; Astronomy; Brightness; Extraterrestrial measurements; Hardware; Lenses; Microoptics; Photometry; Pixel; Real time systems; Telescopes;
Conference_Titel :
Image Processing, 1997. Proceedings., International Conference on
Conference_Location :
Santa Barbara, CA
Print_ISBN :
0-8186-8183-7
DOI :
10.1109/ICIP.1997.632069
