人体骨架绘制：获取关键点信息

绘制人体骨架

mp_drawing.draw_landmarks(
    frame, results.pose_landmarks, mp_pose.POSE_CONNECTIONS)

# 获取右膝、右踝和右手腕关键点的信息
right_knee = results.pose_landmarks.landmark[mp_pose.PoseLandmark.RIGHT_KNEE]
right_ankle = results.pose_landmarks.landmark[mp_pose.PoseLandmark.RIGHT_ANKLE]
right_wrist = results.pose_landmarks.landmark[mp_pose.PoseLandmark.RIGHT_WRIST]

# 获取左肩、左肘和左手腕关键点的信息
left_shoulder = results.pose_landmarks.landmark[mp_pose.PoseLandmark.LEFT_SHOULDER]
left_elbow = results.pose_landmarks.landmark[mp_pose.PoseLandmark.LEFT_ELBOW]
left_wrist = results.pose_landmarks.landmark[mp_pose.PoseLandmark.LEFT_WRIST]

# 获取右肩、右肘和右手腕关键点的信息
right_shoulder = results.pose_landmarks.landmark[mp_pose.PoseLandmark.RIGHT_SHOULDER]
right_elbow = results.pose_landmarks.landmark[mp_pose.PoseLandmark.RIGHT_ELBOW]
right_wrist = results.pose_landmarks.landmark[mp_pose.PoseLandmark.RIGHT_WRIST]

# 获取左臀、左膝和左踝关键点的信息
left_hip = results.pose_landmarks.landmark[mp_pose.PoseLandmark.LEFT_HIP]
left_knee = results.pose_landmarks.landmark[mp_pose.PoseLandmark.LEFT_KNEE]
left_ankle = results.pose_landmarks.landmark[mp_pose.PoseLandmark.LEFT_ANKLE]

本示例代码展示了如何使用 MediaPipe 库绘制人体骨架，并获取关键点信息。通过访问 results.pose_landmarks.landmark 属性，我们可以获取每个关键点的坐标信息。

关键点信息：

• RIGHT_KNEE：右膝
• RIGHT_ANKLE：右踝
• RIGHT_WRIST：右手腕
• LEFT_SHOULDER：左肩
• LEFT_ELBOW：左肘
• LEFT_WRIST：左手腕
• RIGHT_SHOULDER：右肩
• RIGHT_ELBOW：右肘
• RIGHT_WRIST：右手腕
• LEFT_HIP：左臀
• LEFT_KNEE：左膝
• LEFT_ANKLE：左踝

注意：

• 确保已安装 MediaPipe 库。
• frame 代表图像帧。
• results.pose_landmarks 包含人体姿态的识别结果。

应用场景：

• 人体姿态识别
• 运动分析
• 健康监测
• 人机交互