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arXiv 2201.047142022-01-12astro-ph.IMastro-ph.GAcs.CV

Partial-Attribution Instance Segmentation for Astronomical Source Detection and Deblending

University of California, Santa Cruz（加州大学圣克鲁兹分校）

Ryan Hausen, Brant Robertson

备注：: Accepted to the Fourth Workshop on Machine Learning and the Physical Sciences, NeurIPS 2021, 6 pages, 1 figure

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Astronomical source deblending is the process of separating the contribution of individual stars or galaxies (sources) to an image comprised of multiple, possibly overlapping sources. Astronomical sources display a wide range of sizes and brightnesses and may show substantial overlap in images. Astronomical imaging data can further challenge off-the-shelf computer vision algorithms owing to its high dynamic range, low signal-to-noise ratio, and unconventional image format. These challenges make source deblending an open area of astronomical research, and in this work, we introduce a new approach called Partial-Attribution Instance Segmentation that enables source detection and deblending in a manner tractable for deep learning models. We provide a novel neural network implementation as a demonstration of the method.

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