Update track_detection.py

scripts/track_detection.py

@@ -75,7 +75,7 @@ def track(in_path, out_path, metadata_path, seq_name, config, verbose):
 
     # read detection
     with open(in_path, 'r') as f:
-        detection = json.read(f)
+        detection = json.load(f)
 
     inference = detection['inference']
     image_shapes = detection['image_shapes']