顔検出モデルの座標符号を修正して回転方向とおなじになるように

.gitignore

@@ -3,6 +3,7 @@ __pycache__/
 .pytest_cache/
 .venv/
 .codex-test-venv/
+.test-venv/
 venv/
 env/
 .idea/

src/head_pose.py

@@ -16,8 +16,8 @@ class HeadPoseEstimator:
     # match OpenCV image coordinates; using a Y-up model can make a frontal
     # face solve as an approximately 180-degree rotation.
     MODEL_POINTS = (
-        (0.0, 0.0, 0.0), (0.0, 63.6, -12.5), (-43.3, -32.7, -26.0),
-        (43.3, -32.7, -26.0), (-28.9, 28.9, -24.1), (28.9, 28.9, -24.1),
+        (0.0, 0.0, 0.0), (0.0, 63.6, 12.5), (-43.3, -32.7, 26.0),
+        (43.3, -32.7, 26.0), (-28.9, 28.9, 24.1), (28.9, 28.9, 24.1),
     )
 
     def __init__(self, config: HeadPoseSettings) -> None: