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extract_skeleton.py
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import cv2
import mediapipe as mp
import numpy as np
face_skeleton = {}
skeleton_data = {}
def mediapipe(video_address):
mp_holistic = mp.solutions.holistic # Holistic model
holistic = mp_holistic.Holistic(static_image_mode=True, model_complexity=2, enable_segmentation=True, min_detection_confidence=0.5, min_tracking_confidence=0.5)
frame_index = 0
cap = cv2.VideoCapture(video_address)
#cap = video
while cap.isOpened():
ret, frame = cap.read()
if not ret:
break
frame = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
features = holistic.process(frame)
skeleton = {'face': features.face_landmarks, 'pose': features.pose_landmarks, 'right_hand': features.right_hand_landmarks, 'left_hand': features.left_hand_landmarks, 'segmentation' : features.segmentation_mask }
data_numpy = np.zeros((3,48))
face = np.zeros((3,11))
pose = skeleton['pose']
right_hand = skeleton['right_hand']
left_hand = skeleton['left_hand']
v_num = 0
if pose:
# pose keypoints
for idx, landmark in enumerate(pose.landmark):
if idx in range(0,11):
face[0, idx] = landmark.x
face[1, idx] = landmark.y
face[2, idx] = landmark.z
if idx in [11,12,13,14,23,24]:
data_numpy[0, v_num] = landmark.x
data_numpy[1, v_num] = landmark.y
data_numpy[2, v_num] = landmark.z
v_num += 1
# right hand keypoints
if right_hand:
for idx, landmark in enumerate(right_hand.landmark):
data_numpy[0, v_num] = landmark.x
data_numpy[1, v_num] = landmark.y
data_numpy[2, v_num] = landmark.z
v_num += 1
else:
for j in range(0,21):
if j == 0:
data_numpy[0, v_num] = pose.landmark[mp_holistic.PoseLandmark.RIGHT_WRIST].x
data_numpy[1, v_num] = pose.landmark[mp_holistic.PoseLandmark.RIGHT_WRIST].y
data_numpy[2, v_num] = pose.landmark[mp_holistic.PoseLandmark.RIGHT_WRIST].z
v_num += 1
elif j in [1,2,3,4]:
data_numpy[0, v_num] = pose.landmark[mp_holistic.PoseLandmark.RIGHT_THUMB].x
data_numpy[1, v_num] = pose.landmark[mp_holistic.PoseLandmark.RIGHT_THUMB].y
data_numpy[2, v_num] = pose.landmark[mp_holistic.PoseLandmark.RIGHT_THUMB].z
v_num += 1
elif j in [5,6,7,8,9,10,11,12]:
data_numpy[0, v_num] = pose.landmark[mp_holistic.PoseLandmark.RIGHT_INDEX].x
data_numpy[1, v_num] = pose.landmark[mp_holistic.PoseLandmark.RIGHT_INDEX].y
data_numpy[2, v_num] = pose.landmark[mp_holistic.PoseLandmark.RIGHT_INDEX].z
v_num += 1
else:
data_numpy[0, v_num] = pose.landmark[mp_holistic.PoseLandmark.RIGHT_PINKY].x
data_numpy[1, v_num] = pose.landmark[mp_holistic.PoseLandmark.RIGHT_PINKY].y
data_numpy[2, v_num] = pose.landmark[mp_holistic.PoseLandmark.RIGHT_PINKY].z
v_num += 1
# left hand keypoints
if left_hand:
for idx, landmark in enumerate(left_hand.landmark):
data_numpy[0, v_num] = landmark.x
data_numpy[1, v_num] = landmark.y
data_numpy[2, v_num] = landmark.z
v_num += 1
else:
for j in range(0,21):
if j == 0:
data_numpy[0, v_num] = pose.landmark[mp_holistic.PoseLandmark.RIGHT_WRIST].x
data_numpy[1, v_num] = pose.landmark[mp_holistic.PoseLandmark.RIGHT_WRIST].y
data_numpy[2, v_num] = pose.landmark[mp_holistic.PoseLandmark.LEFT_WRIST].z
v_num += 1
elif j in [1,2,3,4]:
data_numpy[0, v_num] = pose.landmark[mp_holistic.PoseLandmark.RIGHT_THUMB].x
data_numpy[1, v_num] = pose.landmark[mp_holistic.PoseLandmark.RIGHT_THUMB].y
data_numpy[2, v_num] = pose.landmark[mp_holistic.PoseLandmark.LEFT_THUMB].z
v_num += 1
elif j in [5,6,7,8,9,10,11,12]:
data_numpy[0, v_num] = pose.landmark[mp_holistic.PoseLandmark.RIGHT_INDEX].x
data_numpy[1, v_num] = pose.landmark[mp_holistic.PoseLandmark.RIGHT_INDEX].y
data_numpy[2, v_num] = pose.landmark[mp_holistic.PoseLandmark.LEFT_INDEX].z
v_num += 1
else:
data_numpy[0, v_num] = pose.landmark[mp_holistic.PoseLandmark.RIGHT_PINKY].x
data_numpy[1, v_num] = pose.landmark[mp_holistic.PoseLandmark.RIGHT_PINKY].y
data_numpy[2, v_num] = pose.landmark[mp_holistic.PoseLandmark.LEFT_PINKY].z
v_num += 1
else:
data_numpy[0, v_num] = 0
data_numpy[1, v_num] = 0
data_numpy[2, v_num] = 0
v_num += 1
skeleton_data[frame_index] = data_numpy
face_skeleton[frame_index] = face
frame_index += 1
return(skeleton_data, face_skeleton)