Boundary Line Detection Experimental
Isolates fine lines of weak reflectivity (0–25 dBZ) on the lowest tilt — outflow boundaries, sea-breeze/lake-breeze fronts, gust fronts — and traces them with a Hessian-matrix ridge detector, cross-checked against spectrum width and correlation coefficient to reject stationary ground clutter/AP. Drawn as white lines; redrawn on every new scan and cleared when switched off. Experimental — clutter/AP rejection is tuned, not perfect.