diff --git a/pipeline/config/thresholds.yaml b/pipeline/config/thresholds.yaml
index 5d9b858..e4bcca2 100644
--- a/pipeline/config/thresholds.yaml
+++ b/pipeline/config/thresholds.yaml
@@ -15,6 +15,7 @@ frame_extract:
   height: 294
   underwater_r_minus_g: 5        # R < G-5 AND R < B-5 → hors eau
   trim_min_frames: 8             # skip if fewer underwater frames
+  bottom_visible_pct_min: 30     # abaissé de 50 à 30 — avg réel = 37.5%, iter auto 2026-05-11
 
 inference:
   ply_conf_threshold: 1.5
@@ -32,6 +33,3 @@ stitch:
   icp_iterations: 50
   use_ransac: true
   ransac_iterations: 100000
-
-frame_extract:
-  bottom_visible_pct_min: 30     # abaissé de 50 à 30 — avg réel = 37.5%, iter auto 2026-05-11