Update pipeline.py

updated pipeline.py based on @benemer  suggestions where the results are only appended when avg fps is greater than zero

python/kiss_icp/pipeline.py

@@ -181,11 +181,13 @@ def _get_fps():
             total_time_s = sum(self.times) * 1e-9
             return float(len(self.times) / total_time_s) if total_time_s > 0 else 0
 
+
         fps = _get_fps()
         avg_fps = int(np.floor(fps))
         avg_ms = int(np.ceil(1e3 / fps)) if fps > 0 else 0
-        self.results.append(desc="Average Frequency", units="Hz", value=avg_fps, trunc=True)
-        self.results.append(desc="Average Runtime", units="ms", value=avg_ms, trunc=True)
+        if avg_fps > 0:
+            self.results.append(desc="Average Frequency", units="Hz", value=avg_fps, trunc=True)
+            self.results.append(desc="Average Runtime", units="ms", value=avg_ms, trunc=True)
 
 
     def _write_log(self):