diff --git a/Pose2Sim/Demo_MultiPerson/Config.toml b/Pose2Sim/Demo_MultiPerson/Config.toml
index 4fe56c4..c9f006c 100644
--- a/Pose2Sim/Demo_MultiPerson/Config.toml
+++ b/Pose2Sim/Demo_MultiPerson/Config.toml
@@ -46,6 +46,7 @@ det_frequency = 1 # Run person detection only every N frames, and inbetween trac
                   # Equal to or greater than 1, can be as high as you want in simple uncrowded cases. Much faster, but might be less accurate. 
 tracking = true # Gives consistent person ID across frames. Slightly slower but might facilitate synchronization if other people are in the background
 display_detection = true
+overwrite_pose = false # set to false if you don't want to recalculate pose estimation when it has already been done
 save_video = 'to_video' # 'to_video' or 'to_images', 'none', or ['to_video', 'to_images']
 output_format = 'openpose' # 'openpose', 'mmpose', 'deeplabcut', 'none' or a list of them # /!\ only 'openpose' is supported for now
 
diff --git a/Pose2Sim/Demo_SinglePerson/Config.toml b/Pose2Sim/Demo_SinglePerson/Config.toml
index 02ee9d4..de61d2d 100644
--- a/Pose2Sim/Demo_SinglePerson/Config.toml
+++ b/Pose2Sim/Demo_SinglePerson/Config.toml
@@ -46,6 +46,7 @@ det_frequency = 1 # Run person detection only every N frames, and inbetween trac
                   # Equal to or greater than 1, can be as high as you want in simple uncrowded cases. Much faster, but might be less accurate. 
 tracking = true # Gives consistent person ID across frames. Slightly slower but might facilitate synchronization if other people are in the background
 display_detection = true
+overwrite_pose = false # set to false if you don't want to recalculate pose estimation when it has already been done
 save_video = 'to_video' # 'to_video' or 'to_images', 'none', or ['to_video', 'to_images']
 output_format = 'openpose' # 'openpose', 'mmpose', 'deeplabcut', 'none' or a list of them # /!\ only 'openpose' is supported for now
 
diff --git a/Pose2Sim/poseEstimation.py b/Pose2Sim/poseEstimation.py
index a72caca..31fe942 100644
--- a/Pose2Sim/poseEstimation.py
+++ b/Pose2Sim/poseEstimation.py
@@ -331,6 +331,7 @@ def rtm_estimator(config_dict):
     session_dir = session_dir if 'Config.toml' in os.listdir(session_dir) else os.getcwd()
     frame_range = config_dict.get('project').get('frame_range')
     video_dir = os.path.join(project_dir, 'videos')
+    pose_dir = os.path.join(project_dir, 'pose')
 
     pose_model = config_dict['pose']['pose_model']
     mode = config_dict['pose']['mode'] # lightweight, balanced, performance
@@ -340,6 +341,7 @@ def rtm_estimator(config_dict):
     save_video = True if 'to_video' in config_dict['pose']['save_video'] else False
     save_images = True if 'to_images' in config_dict['pose']['save_video'] else False
     display_detection = config_dict['pose']['display_detection']
+    overwrite_pose = config_dict['pose']['overwrite_pose']
 
     det_frequency = config_dict['pose']['det_frequency']
     tracking = config_dict['pose']['tracking']
@@ -405,20 +407,31 @@ def rtm_estimator(config_dict):
         tracking=tracking,
         to_openpose=False)
 
-    logging.info('\nEstimating pose...')
-    video_files = glob.glob(os.path.join(video_dir, '*'+vid_img_extension))
-    if not len(video_files) == 0: 
-        # Process video files
-        logging.info(f'Found video files with extension {vid_img_extension}.')
-        for video_path in video_files:
-            pose_tracker.reset()
-            process_video(video_path, pose_tracker, tracking, output_format, save_video, save_images, display_detection, frame_range)
 
-    else:
-        # Process image folders
-        logging.info(f'Found image folders with extension {vid_img_extension}.')
-        image_folders = [f for f in os.listdir(video_dir) if os.path.isdir(os.path.join(video_dir, f))]
-        for image_folder in image_folders:
-            pose_tracker.reset()
-            image_folder_path = os.path.join(video_dir, image_folder)
-            process_images(image_folder_path, vid_img_extension, pose_tracker, tracking, output_format, frame_rate, save_video, save_images, display_detection, frame_range)
+    logging.info('\nEstimating pose...')
+    try:
+        pose_listdirs_names = next(os.walk(pose_dir))[1]
+        os.listdir(os.path.join(pose_dir, pose_listdirs_names[0]))[0]
+        if not overwrite_pose:
+            logging.info('Skipping pose estimation as it has already been done. Set overwrite_pose to true in Config.toml if you want to run it again.')
+        else:
+            logging.info('Overwriting previous pose estimation. Set overwrite_pose to false in Config.toml if you want to keep the previous results.')
+            raise
+            
+    except:
+        video_files = glob.glob(os.path.join(video_dir, '*'+vid_img_extension))
+        if not len(video_files) == 0: 
+            # Process video files
+            logging.info(f'Found video files with extension {vid_img_extension}.')
+            for video_path in video_files:
+                pose_tracker.reset()
+                process_video(video_path, pose_tracker, tracking, output_format, save_video, save_images, display_detection, frame_range)
+
+        else:
+            # Process image folders
+            logging.info(f'Found image folders with extension {vid_img_extension}.')
+            image_folders = [f for f in os.listdir(video_dir) if os.path.isdir(os.path.join(video_dir, f))]
+            for image_folder in image_folders:
+                pose_tracker.reset()
+                image_folder_path = os.path.join(video_dir, image_folder)
+                process_images(image_folder_path, vid_img_extension, pose_tracker, tracking, output_format, frame_rate, save_video, save_images, display_detection, frame_range)