Captcha recognition using PyTorch (Convolutional-RNN + CTC Loss)

From the creator

In this video, I will show you how you can implement a Convolutional-RNN model for captcha recognition. We will be using CTC loss and everything will be done in PyTorch. You can find the code for this tutorial here: https://github.com/abhishekkrthakur/captcha-recognition-pytorch 00:00 Introduction 01:10 Data & Config 04:30 Dataset 13:45 Training File Part - 1 26:16 Data View 30:30 Engine 34:38 Model 58:28 Train File Part - 2 1:12:35 Training and Inference Note: This tutorial was heavily inspired by Aakash Nain's code example available in keras blog: https://keras.io/examples/vision/captcha_ocr/ Connect with him on LinkedIn: https://in.linkedin.com/in/aakash-kumar-nain Please subscribe and like the video to help me keep motivated to make awesome videos like this one. :) To buy my book, Approaching (Almost) Any Machine Learning problem, please visit: https://bit.ly/buyaaml Follow me on: Twitter: https://twitter.com/abhi1thakur LinkedIn: https://www.linkedin.com/in/abhi1thakur/ Kaggle: https://kaggle.com/abhishek

Stop watching · start building
Matched to Build an App

Makers residency 4th edition

Your idea can be anything. At our last workshops, people built plant-based nutrition businesses, a way to measure planetary resilience, crochet headwear and a way to connect lonely people living in the same building. An asset manager went on to raise an additional £25M on their fund within nine months. The fourth workshop is a full day at KOKO with Nick Sarafa, learning to build with Claude Code. Bring the thing you keep meaning to start. We’ll bring the pizza.

◆ Fri 13 Nov 2026 ◆ KOKO, London
Makers residency 4th edition
Live event
Makers residency 4th edition
Fri 13 Nov 2026

More like this

Running one yourself?

List your AI event,
wherever it is.

A meetup, a workshop, a hackathon, a conference. Any city, or online. Tell us about it and it lands in front of people already learning this stuff.