Skip to content
Free public beta until December 4, 2026: every course is open, no card needed. After that, the first chapter of each course stays free and full access is a one-time $39 ($19 for up to 100 founding members chosen for helpful feedback). Your progress is kept. How the beta works

computer-vision

The OCR pipeline -- text detection, recognition, and document layout

taught

Separating text detection (where is the text) from text recognition (what does it say) as two distinct stages of an OCR pipeline, and reading document layout analysis as the step that groups recognized text into meaningful regions before it's used.

Requires

  • bounding-box-iou-and-nms recommended

    Text detection is a detection-shaped problem -- it reuses ch.13's own bounding-box/confidence machinery to locate text regions before recognition ever runs.

Required by

Local knowledge map

Local knowledge map

Click to expand

Solid arrows are required prerequisites; dashed are recommended or helpful. Lower rows are more foundational. Click any box to jump to that concept.