OCR speed

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  • Last Post 19 January 2018
alexander@gorobets.com posted this 11 January 2018

Hello,

I am evaluating ABBY OCR mobile engine in terms of speed. I test the out of the box demo app on one of the latest smartphones. I am primary interested in recognition of Chinese text t the moment. For 1 page with 8 lines of Chinese text I have 1.7 second recognition time. That seems too slow for our needs. Is there any way to improve the speed? We need 5-10 times faster.

Thanks,

Alexander

Diana Khammatova posted this 19 January 2018

Overall, CJK recognition requires more time and memory than recognition of European text, but there are still a number of ways to increase processing speed:

  • preprocessing speed increases if you do not use UseOldBinarization flag. Note, that this might decrease CJK recognition quality.
  • analysis speed increases if you do not use DetectPageOrientation flag. You can omit it if you do not need to recognize rotated text.
  • recognition speed increases if you use Fast recognition mode. Note, that this might decrease CJK recognition quality.
  • recognition speed increases if you implement multithreaded processing, but it also increases memory consumption.

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