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光球亮点( BPs )自动识别算法

光球亮点( BPs )自动识别算法. 报告人:冯松 单位: 昆明理工大学. 报告内容. 光球 BPs 的识别算法: 在 AR10642 和 QS 的统计分析结果 面积分布 直径分布 偏心率 最大 值强度与光球平均强度比. 算法测试数据. Image : DOT Wavelength of Image[A]:4305 Image Scale[arcs/pixel]:0.071(51.5 km) Telescope Aperture(cm): 43.8. 识别算法的主要步骤. 图像的平滑(消除噪声) Laplace 运算(提取孤立点) 形态学运算(膨胀 )

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光球亮点( BPs )自动识别算法

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  1. 光球亮点(BPs)自动识别算法 报告人:冯松 单位:昆明理工大学

  2. 报告内容 • 光球BPs的识别算法: • 在AR10642和QS的统计分析结果 • 面积分布 • 直径分布 • 偏心率 • 最大值强度与光球平均强度比

  3. 算法测试数据 • Image :DOT • Wavelength of Image[A]:4305 • Image Scale[arcs/pixel]:0.071(51.5 km) • Telescope Aperture(cm):43.8

  4. 识别算法的主要步骤 • 图像的平滑(消除噪声) • Laplace运算(提取孤立点) • 形态学运算(膨胀) • 概率阀值(去掉米粒上亮点)

  5. 统计量 算法统计了DOT的两个不同的观测区域AR和QS,统计量如下: • BPs的直径分布 • 偏心率(长轴/短轴) • MBPs总强度/光球强度均值 • 测试数据: • AR 10642:127802 /193frames • QS: 39767 /142 frames

  6. 红色表示QS 蓝色表示AR

  7. 感谢各位专家!谢谢!

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