Semantic Scholar Open Access 2019 67 sitasi

Deblending and classifying astronomical sources with Mask R-CNN deep learning

C. J. Burke P. Aleo Yu-Ching Chen Xin Liu J. Peterson +2 lainnya

Lihat Sumber DOI

Abstrak

We apply a new deep learning technique to detect, classify, and deblend sources in multiband astronomical images. We train and evaluate the performance of an artificial neural network built on the Mask Region-based Convolutional Neural Network image processing framework, a general code for efficient object detection, classification, and instance segmentation. After evaluating the performance of our network against simulated ground truth images for star and galaxy classes, we find a precision of 92 per cent at 80 per cent recall for stars and a precision of 98 per cent at 80 per cent recall for galaxies in a typical field with ∼30 galaxies arcmin−2. We investigate the deblending capability of our code, and find that clean deblends are handled robustly during object masking, even for significantly blended sources. This technique, or extensions using similar network architectures, may be applied to current and future deep imaging surveys such as Large Synoptic Survey Telescope and Wide-Field Infrared Survey Telescope. Our code, astro r-cnn, is publicly available at https://github.com/burke86/astro_rcnn.

Topik & Kata Kunci

Physics

Penulis (7)

C. J. Burke

P. Aleo

Yu-Ching Chen

Xin Liu

J. Peterson

G. Sembroski

J. Lin

Format Sitasi

APA MLA BibTeX

Burke, C.J., Aleo, P., Chen, Y., Liu, X., Peterson, J., Sembroski, G. et al. (2019). Deblending and classifying astronomical sources with Mask R-CNN deep learning. https://doi.org/10.1093/mnras/stz2845

Akses Cepat

Lihat di Sumber doi.org/10.1093/mnras/stz2845

Informasi Jurnal

Tahun Terbit: 2019
Bahasa: en
Total Sitasi: 67×
Sumber Database: Semantic Scholar
DOI: 10.1093/mnras/stz2845
Akses: Open Access ✓