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Paper: |
Point Source Detection Software in the SKA Era |
Volume: |
512, Astronomical Data Analysis Software and Systems XXV |
Page: |
233 |
Authors: |
Dehghan, S.; Johnston-Hollitt, M.; Hollitt, C. |
Abstract: |
The generation of a sky model for calibration of Square Kilometre Array observations requires a fast method of automatic point source detection and characterisation. In recent years, point source detection in two-dimensional images has been implemented by using several thresholding approaches. In the first phase of the SKA we will need a fast implementation capable of dealing with very large images (80,000×80,000 pixels). While the underlying algorithms scale suitably with image size, the present implementations do not. We make some comments on the pertinent trade-offs for scaling these implementations to SKA-levels. |
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