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  • 标题:A New Standard for Assessing the Performance of High Contrast Imaging Systems
  • 本地全文:下载
  • 作者:Rebecca Jensen-Clem ; Dimitri Mawet ; Carlos A. Gomez Gonzalez
  • 期刊名称:The Astronomical journal
  • 印刷版ISSN:0004-6256
  • 电子版ISSN:1538-3881
  • 出版年度:2018
  • 卷号:155
  • 期号:1
  • 页码:1-8
  • DOI:10.3847/1538-3881/aa97e4
  • 语种:English
  • 出版社:American Institute of Physics
  • 摘要:As planning for the next generation of high contrast imaging instruments (e.g., WFIRST, HabEx, and LUVOIR, TMT-PFI, EELT-EPICS) matures and second-generation ground-based extreme adaptive optics facilities (e.g., VLT-SPHERE, Gemini-GPI) finish their principal surveys, it is imperative that the performance of different designs, post-processing algorithms, observing strategies, and survey results be compared in a consistent, statistically robust framework. In this paper, we argue that the current industry standard for such comparisons—the contrast curve—falls short of this mandate. We propose a new figure of merit, the “performance map,” that incorporates three fundamental concepts in signal detection theory: the true positive fraction, the false positive fraction, and the detection threshold. By supplying a theoretical basis and recipe for generating the performance map, we hope to encourage the widespread adoption of this new metric across subfields in exoplanet imaging.
  • 关键词:methods: statistical;techniques: high angular resolution
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