Image Details
Caption: Figure 6.
FRBLE extraction test on synthetic data. (a) Synthetic image: a ring with embedded circular substructures plus noise. (b) and (c) Features extracted using a global intensity threshold before and after cleaning. (d) Intensity curvature (∇2I) map. (e) and (f) Features extracted using a curvature threshold before and after cleaning.
© 2026. The Author(s). Published by the American Astronomical Society.