Complex Document Recognition: OCR Doesn’t Work and Here’s How You Fix It

OCR software alone can't handle complex documents — special symbols, rotated text, low-quality scans.
Using deep learning, one can augment ready-made OCR solutions and allow for processing of complex documents. From removing false positives to using binary matrices to detect complex spreadsheets, deep learning can handle any document.
In this article I describe my experience with developing a system for detecting technical drawings of floor plans, the perfect example of applying modern CV and AI to complex document digitization.

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