change gpu to cpu

detect_deepsort.py

@@ -40,7 +40,7 @@ def initialize_deepsort():
                         max_age=cfg_deep.DEEPSORT.MAX_AGE, n_init=cfg_deep.DEEPSORT.N_INIT,
                         #nn_budget: It sets the budget for the nearest-neighbor search.
                         nn_budget=cfg_deep.DEEPSORT.NN_BUDGET,
-                        use_cuda=True
+                        use_cuda=False
         )
 
     return deepsort