follow up first commit

configs/weight_cc2_cc3.yaml

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+cage_id: kandang_1
+csv_path: data/historical_weights_manual_iot_review.csv
+video_root: /media/asus/One Touch/VIDEOS/cycle7/kandang-atas
+camera_glob: "kandang_{cage}_camera_{num}_*.mp4"
+cameras: [CC2, CC3]
+camera_nums:
+  CC2: 2
+  CC3: 3
+exclude_cycle_days: [0, 1, 2]
+# Production model (train): ages 3–35. Evaluate late holdout stays 29–35 for GO (fit on 3–28).
+train_cycle_day_min: 3
+train_cycle_day_max: 35
+# Smart fuse: ignore cams below this count; else weight by detection_count.
+fuse_min_detections: 100
+# Vision drives weight; Gompertz age curve is diagnostic only.
+model_mode: vision_primary
+# Production feature preset: mask-centric shape geometry (no detection_count/mean_confidence).
+features:
+  preset: mask_max
+chicken_counter_config: /media/asus/One Touch/LABS/chicken-counting/chicken-sukawarna-existing/configs/cycle7_batch.yaml
+calibration_dir: configs/calibration
+output_dir: output
+
+# Segmentation pilot: chicken class only (seg model has classes 0/1, no half-chicken).
+detection:
+  model_path: /media/asus/One Touch/LABS/chicken-counting/chicken-sukawarna-existing/chicken-detection-model-v26n-seg-300e-best-2026-04-18.pt
+  classes: [0]
+
+geometry:
+  prefer_mask: true
+  min_mask_fill_ratio: 0.30
+  fallback_to_bbox: true
+  # Shape stats use mask rows only when at least this many mask detections exist.
+  min_mask_for_stats: 20
+
+# Second filter: drop camera-day area anomalies outside the robust normal band.
+size_distribution:
+  enabled: true
+  metric: area_cm2
+  method: mad_zscore
+  z_max: 2.0
+  min_samples: 30
+
+# Relaxed filters for small chicks on early cycle days (cycle_day <= day_max).
+early_cycle:
+  day_max: 17
+  quality:
+    min_overlap_ratio: 0.35
+    min_box_area_px: 200
+    area_outlier_min_factor: 0.10
+    conf_min: 0.12
+    min_centroid_distance_px: 15
+    max_pairwise_iou: 0.55
+    min_frame_clean_ratio: 0.01
+    min_aspect_ratio: 0.35
+    max_aspect_ratio: 2.2
+    max_birds_per_frame: 50
+  size_distribution:
+    z_max: 3.0
+
+# Soften day-21 cliff: in-between gates for mid flock.
+mid_cycle:
+  day_min: 18
+  day_max: 24
+  quality:
+    conf_min: 0.20
+    min_box_area_px: 800
+    min_overlap_ratio: 0.55
+    min_centroid_distance_px: 30
+    max_pairwise_iou: 0.40
+    max_birds_per_frame: 45
+    min_frame_clean_ratio: 0.05
+    min_aspect_ratio: 0.40
+    max_aspect_ratio: 2.0
+  size_distribution:
+    z_max: 2.5
+
+# Red-line aisle corridors (widened ~80px/side for early small chicks at corridor edges).
+sampling_corridors:
+  CC2:
+    boundary_x: [230, 970, 1220, 1690]
+    inclusion_pairs: [[230, 970], [1220, 1690]]
+    y_bounds: [380, 720]
+  CC3:
+    boundary_x: [150, 720, 920, 1650]
+    inclusion_pairs: [[150, 720], [920, 1650]]
+    y_bounds: [330, 720]
+
+sampling:
+  # One short clip (~10–15 min, often ~12:00) per day/camera: sample the whole file.
+  use_full_video: true
+  # Only used when use_full_video is false (long recordings with a morning weigh window).
+  morning_weigh_in_time: "12:00:00"
+  window_minutes_before: 30
+  window_minutes_after: 30
+  # Unique-chicken extract: track every frame, one best obs per track_id.
+  initial_stride_frames: 4
+  min_stride_frames: 2
+  target_detections: 600
+  late_cycle_target_detections: 600
+  late_cycle_day_threshold: 20
+  per_track_cap: 1
+  track_every_n_frames: 1
+  keep_best_per_track: true
+  allow_stride_multipass: false
+  convergence_window: 50
+  convergence_pct: 0.01
+  convergence_checks_required: 3
+  low_confidence_detection_threshold: 100
+  # During extract, save green/red filter overlays every N video frames (0 = off).
+  extract_overlay_every_n_frames: 1000
+  # Stop sampling when cart/camera reverse is confirmed (chicken_counter optical flow).
+  stop_on_backward: true
+
+quality:
+  allowed_class_ids: [0]
+  reject_class_ids: []
+  # Tier 1 — containment (relaxed for dense late-cycle frames)
+  require_full_bbox_inside_roi: false
+  min_overlap_ratio: 0.75
+  # Tier 2 — isolation
+  max_pairwise_iou: 0.30
+  min_centroid_distance_px: 45
+  min_centroid_distance_bbox_factor: 0.35
+  max_birds_per_frame: 40
+  # Tier 3 — shape and confidence
+  conf_min: 0.30
+  min_box_area_px: 2000
+  min_aspect_ratio: 0.5
+  max_aspect_ratio: 1.8
+  area_outlier_min_factor: 0.5
+  area_outlier_max_factor: 1.8
+  # Tier 4 — frame gate
+  min_frame_clean_ratio: 0.1
+  min_accepted_per_frame: 1