diff --git a/vilib/version.py b/vilib/version.py
index df0ed33..8a3be2e 100644
--- a/vilib/version.py
+++ b/vilib/version.py
@@ -1 +1 @@
-__version__ = "0.3.12"
+__version__ = "0.3.13"
diff --git a/vilib/vilib.py b/vilib/vilib.py
index a36c592..aaf4ce0 100644
--- a/vilib/vilib.py
+++ b/vilib/vilib.py
@@ -38,6 +38,9 @@
 # print(f"user: {user}")
 # print(f"user_home: {user_home}")
 
+# init picamera2 reference
+pi_camera_2 = None
+
 # Default path for pictures and videos
 DEFAULLT_PICTURES_PATH = '%s/Pictures/vilib/'%user_home
 DEFAULLT_VIDEOS_PATH = '%s/Videos/vilib/'%user_home
@@ -225,15 +228,25 @@ class Vilib(object):
     objects_detection_labels = None
     qrcode_detect_sw = False
     traffic_detect_sw = False
-
+        
+    @staticmethod        
+    def get_instance():
+        global pi_camera_2
+        return pi_camera_2
+        
+        
     @staticmethod
     def camera():
+        global pi_camera_2
         Vilib.camera_width = Vilib.camera_size[0]
         Vilib.camera_height = Vilib.camera_size[1]
 
         # init picamera
         picam2 = Picamera2()
 
+        # set global reference
+        pi_camera_2 = picam2
+
         preview_config = picam2.preview_configuration
         # preview_config.size = (800, 600)
         preview_config.size = Vilib.camera_size