results on dataset TUM-mono

[nifengzhiyix2]

Hi,
Recently, I recurrent the results of calibration for dso on TUM-mono, when I use the code in batch mode, the results with calibration is better than no calibration, however ,if I use the code in online mode ,the results with calibration is much worse than no calibration.anyone can help me?
in online mode, I run it by

./bin/online_pcalib_demo -i sequence_01 --image-width 1280 --image-height 1024

and write every image after calibrated,
finally use dso to run the calibrated images.

./bin/dso_dataset files=XXXX/images calib=XXXX/camera.txt

Is there anything wrong in my method?