https://paudelanil9.com.np/categories/ocr/ Recent content in OCR on Blogs by Anil Hugo -- 0.138.0 en Sun, 16 Aug 2026 00:00:00 +0000 https://paudelanil9.com.np/posts/trocrfromscratch/ Sun, 16 Aug 2026 00:00:00 +0000 https://paudelanil9.com.np/posts/trocrfromscratch/ <h1 id="building-trocr-from-scratch-what-wiring-a-vision-encoder-to-a-text-decoder-actually-taught-me">Building TrOCR from scratch: what wiring a vision encoder to a text decoder actually taught me</h1> <p>I spent a weekend answering one question end to end: <em>how does a model look at a picture of text and type out the characters?</em> I already knew the NLP Transformer — Q/K/V, multi-head attention, positional encodings — so I didn&rsquo;t want a tutorial that treats the Vision Transformer as a magic box. I wanted to build the whole thing from scratch in PyTorch: the ViT encoder, the text decoder, and the cross-attention that joins them, aiming eventually at handwritten Devanagari OCR.</p>