1

flutter_app/lib/camera/camera_screen.dart

@@ -91,7 +91,7 @@ class _CameraScreenState extends State<CameraScreen> {
                 const SizedBox(height: 8),
                 const Text(
                   '阈值越低识别越灵敏（低分框越多，误报也可能增加）；'
-                  '环颈雉鸡模型置信度普遍在 10%~20%，场景识别不到时可适当调低。',
+                  '不同模型的置信度分布不同，识别不到目标时可适当调低阈值。',
                   style: TextStyle(color: Colors.white54, fontSize: 12),
                 ),
                 const SizedBox(height: 16),

flutter_app/lib/camera/camera_view_model.dart

@@ -105,9 +105,10 @@ class CameraViewModel extends ChangeNotifier {
       visible.add(r.copyWith(confirmed: t.confirmed));
     }
 
-    // 提醒：仅新确认的环颈雉鸡轨迹（确认瞬间触发一次，10s 同类冷却在 Reminder 内）
+    // 提醒：仅新确认的目标物种轨迹（class 0，如环颈雉鸡；确认瞬间触发一次，10s 同类冷却在 Reminder 内）
     for (final t in _tracks.values) {
-      if (t.label != 'pheasant' || !t.confirmed || t.reminded) continue;
+      final isSuspect = t.result.classId > 0 || t.label == 'suspect';
+      if (isSuspect || !t.confirmed || t.reminded) continue;
       final age = now - t.firstSeenMs;
       if (age >= displayAgeMs && age <= displayAgeMs + 1600 &&
           now - t.lastSeenMs <= 300) {
@@ -184,7 +185,7 @@ class CameraViewModel extends ChangeNotifier {
   /// - 环颈雉鸡：确认轨迹直接显示；未确认的只有在高分或活动证据时才显示
   bool _shouldDisplay(_Track t, List<MotionRegion> motionRegions,
       List<MotionRegion> noveltyRegions) {
-    if (t.label == 'suspect') return true;
+    if (t.result.classId > 0 || t.label == 'suspect') return true;
     if (t.confirmed) return true;
     return t.result.score >= highConf ||
         _hasActivity(t.result, motionRegions, noveltyRegions);
@@ -203,7 +204,7 @@ class CameraViewModel extends ChangeNotifier {
     if (w <= 0 || h <= 0) return false;
     final aspect = w / h;
     if (aspect < 0.3 || aspect > 3.0) return false;
-    if (r.label == 'suspect') return h >= 0.01 && h <= 0.5;
+    if (r.classId > 0 || r.label == 'suspect') return h >= 0.01 && h <= 0.5;
     return h >= 0.01 && h <= 0.3;
   }
 

flutter_app/lib/camera/detection_overlay.dart

@@ -44,14 +44,11 @@ class _OverlayPainter extends CustomPainter {
   _OverlayPainter(this.results, this.rotation, this.imageWidthPx,
       this.imageHeightPx);
 
-  static const _colors = {
-    'pheasant': Color(0xFFE53935),
-    'suspect': Color(0xFFFDD835),
-  };
   static const _labels = {'pheasant': '环颈雉鸡', 'suspect': '疑似'};
 
-  /// 参考体型（米）：环颈雉鸡身高 / 植被高度（参照旧 DistanceEstimator）
-  static const _refSizeM = {'pheasant': 0.45, 'suspect': 0.50};
+  /// 参考体型（米）：目标物种（class 0，如环颈雉鸡）身高 / suspect 植被高度
+  static const double _refSizeSpeciesM = 0.45;
+  static const double _refSizeSuspectM = 0.50;
 
   /// iPhone 13 主摄在 1280 高预览下的估算焦距 px（5.1mm / 5.30mm 传感器），
   /// 单目误差 ±30%，仅作参考
@@ -72,8 +69,10 @@ class _OverlayPainter extends CustomPainter {
         size.width,
         size.height,
       );
-      final color = _colors[r.label] ?? Colors.white;
-      final isSuspect = r.label == 'suspect';
+      // 颜色按类别索引而非 label 文本：模型类别名可能为中文（环颈雉）或
+      // 随数据集变化，class 0 恒为目标物种（红），其余类恒为 suspect（黄）
+      final isSuspect = r.classId > 0 || r.label == 'suspect';
+      final color = isSuspect ? Color(0xFFFDD835) : Color(0xFFE53935);
       final confirmed = r.confirmed && !isSuspect;
       final paint = Paint()
         ..color = color.withValues(alpha: confirmed ? 1.0 : 0.55)
@@ -113,8 +112,9 @@ class _OverlayPainter extends CustomPainter {
   }
 
   String _distanceLabel(DetectionResult r) {
-    final refH = _refSizeM[r.label];
-    if (refH == null) return '';
+    final refH = (r.classId > 0 || r.label == 'suspect')
+        ? _refSizeSuspectM
+        : _refSizeSpeciesM;
     final hPx = r.height * imageHeightPx;
     if (hPx < 8) return '';
     final m = focalPx * refH / hPx;