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Best approach for extracting metadata from scanned engineering drawings?

This story is from 2026-09-11. It is preserved in the archive; the latest stories are on the live feed.

I have a large number of engineering drawings for different power plants, many of which are scanned PDFs. I need to extract metadata from the title blocks into structured data. I've tried traditional OCR and a few LLM/VLM approaches, but accuracy isn't consistent enough, especially with older scans…

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  1. 2026-09-11 17:18 · r/computervision
    Best approach for extracting metadata from scanned engineering drawings?

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