Sunspots Extraction in PMO Sunspot Drawings Based on Deep Learning

Xu, X; Yang, YF; Zhou, TH; Feng, S; Liang, B; Dai, W; Bai, XY

Yang, YF (corresponding author), Kunming Univ Sci & Technol, Fac Informat Engn & Automat, Yunnan Key Lab Comp Technol Applicat, Kunming 650500, Yunnan, Peoples R China.; Yang, YF (corresponding author), Natl Astron Observ, CAS Key Lab Solar Act, Beijing 100012, Peoples R China.

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC, 2021; 133 (1024):

Abstract

Sunspot numbers and sunspot areas are the most fundamental indices of long-term solar activity levels and the solar magnetic dynamo. This paper presen......

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