Case Study
OCR and Scanned Document Processing
Python · FastAPI · OCR · Computer Vision · Document Processing
Executive Summary
Explored how to extract readable text from scanned or image-based documents while balancing accuracy, speed, and resource usage.
The Problem
- Scanned PDFs are not searchable by default.
- Low-quality images can reduce OCR accuracy.
- Document processing had to balance speed, quality, and resource usage.
Architecture & Approach
- 1Image preprocessing before OCR
- 2OCR pipeline designed for scanned and mixed-content documents
- 3FastAPI-based service layer for document extraction workflows
- 4Post-processing to make extracted text more usable
Challenges & Trade-offs
Handling poor scan quality and mixed image/text content
Keeping inference and preprocessing efficient enough for real workloads
Outcomes & Results
- A path toward searchable scanned documents
- A more practical OCR workflow for document-heavy use cases