about missing single digits and signs

[tairen99]

Thank you for your excellent work!

I am trying to fine-tune your model to detect document text, but I notice there are some single digit and single sign, such as "-", are missing. Do you know what would be the possible reason? or any place you have some preprocessing or postprocessing to remove small contour of texts?

I tried to reduce the "dis_threshold" but it does not help. Thank you in advance!

[lerndeep]

@tairen99 I faced issue missing key value during evaluation. could you please let me know your configuration?