Update app.py

app.py

@@ -47,7 +47,7 @@ def generate(input_video):
         # Run the inference command
         subprocess.run(
             [
-                "python", "infer_3d.py", "big",
+                "python", "infer_4d.py", "big",
                 "--workspace", f"{workdir}",
                 "--resume", f"{recon_model}",
                 "--interpresume", f"{interp_model}",