Update app.py

app.py

@@ -406,7 +406,7 @@ def track(
     video_input = torch.tensor(video_input).unsqueeze(0)
 
     # model = torch.hub.load("facebookresearch/co-tracker", "cotracker3_online")
-    model = CoTrackerOnlinePredictor()
+    model = CoTrackerOnlinePredictor(checkpoint='./baseline_online.pth')
     model = model.to(device)
 
     video_input = video_input.permute(0, 1, 4, 2, 3)