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def analyze_posture_by_keypoints(landmarks):
left_shoulder = landmarks.landmark[11]
right_shoulder = landmarks.landmark[12]
left_ear = landmarks.landmark[7]
right_ear = landmarks.landmark[8]
shoulder_x = (left_shoulder.x + right_shoulder.x) / 2
ear_x = (left_ear.x + right_ear.x) / 2
delta = ear_x - shoulder_x
if abs(delta) > 0.06:
return "该用户存在驼背或低头倾向，头部明显前倾。"
else:
return "该用户坐姿较为端正，头部与肩部对齐。" |