Free Course Image Convolutional Neural Networks for Computer Vision: Deep Learning Lecture Series

Free online courseConvolutional Neural Networks for Computer Vision: Deep Learning Lecture Series

Duration of the online course: 19 hours and 30 minutes

New

Build real-world computer vision skills with a free CNN course—learn image classification, training tricks, and modern architectures, plus practice questions.

In this free course, learn about

  • 2012 ImageNet/AlexNet breakthrough that popularized CNNs for image classification
  • Image classification pipelines, k-NN and why tuning hyperparams on test set causes leakage
  • Loss functions & optimization: softmax cross-entropy minimized per example
  • Neural nets basics: why nonlinear activations (e.g., ReLU) are required between linear layers
  • CNN layers: convolution/pooling; output depth set by number of filters
  • Training issues: sigmoid saturation/vanishing gradients; initialization and regularization ideas
  • Optimization methods: SGD, momentum, Adam; why Adam uses early bias correction
  • Deep learning software & GPUs: why GPUs excel at conv/GEMM via massive parallelism
  • CNN architectures: Inception/ResNet; 1x1 bottlenecks; fewer params via global avg pooling
  • RNN fundamentals for sequence modeling and how they differ from CNN feedforward models
  • Detection & semantic segmentation: per-pixel class label outputs for an input image
  • Visualization/interpretability: first-layer filters correspond to simple edges/colors, hence readable
  • Generative models: PixelCNN factorizes p(X) autoregressively as product of conditional pixels
  • Deep RL & robustness: experience replay in DQN; FGSM adversarial perturbations; memory efficiency

Course Description

If you want to understand how machines learn to see, this course is a practical path into convolutional neural networks (CNNs) and the ideas that made modern computer vision possible. You will move from the big picture of visual recognition to the engineering details that determine whether a model actually trains, generalizes, and performs well on real images. Along the way, the material connects core theory with the intuition you need to make good choices when building and tuning deep learning systems.

You will start by grounding CNNs in the breakthrough moment that accelerated their adoption for image classification, then build a clear mental model of image classification pipelines and evaluation. The course emphasizes good experimental habits, including how to think about data splits and why certain shortcuts can quietly invalidate results. From there, you will dive into loss functions and optimization, developing an understanding of what the model is truly minimizing and how gradients drive learning.

As neural networks enter the picture, you will learn why non-linear activations are essential for expressive models, and why some classic activations can make deep networks harder to train. The training-focused lectures explore common failure modes, practical stabilization techniques, and modern optimizers, clarifying details such as why moment estimates need correction early in training. You will also see how hardware and software choices matter, with a clear explanation of why GPUs excel at the operations that dominate deep learning workloads.

Once the fundamentals are in place, the course shifts to widely used CNN architectures and the design patterns behind them, highlighting how smart architectural changes can cut parameters while preserving or improving accuracy. You will then broaden your toolkit to cover tasks beyond classification, including detection and segmentation, and develop intuition for what outputs a vision model should produce when the goal is pixel-level understanding.

To deepen understanding, the lectures explore ways to visualize and interpret what networks learn, then expand into generative models, recurrent networks, and deep reinforcement learning, giving you a sense of how vision connects to sequence modeling and decision-making. Efficiency and deployment considerations are addressed through discussions of memory access and inference hardware, and you will also learn why adversarial examples work and how adversarial training improves robustness. Throughout, short exercises help you check understanding and turn key concepts into usable skill.

Course content

  • Video class: Lecture 1 | Introduction to Convolutional Neural Networks for Visual Recognition 57m
  • Exercise: What key event is highlighted as the 2012 breakthrough that accelerated the adoption of convolutional neural networks for image classification?
  • Video class: Lecture 2 | Image Classification 59m
  • Exercise: Why is choosing hyperparameters (like K in k-NN) based on test-set accuracy considered a bad practice?
  • Video class: Lecture 3 | Loss Functions and Optimization 1h14m
  • Exercise: In the softmax (multinomial logistic regression) loss for image classification, what quantity is minimized for each training example?
  • Video class: Lecture 4 | Introduction to Neural Networks 1h13m
  • Exercise: Why are non-linear activation functions (e.g., ReLU) necessary between linear layers in a neural network?
  • Video class: Lecture 5 | Convolutional Neural Networks 1h08m
  • Exercise: In a convolutional layer, what determines the depth (number of channels) of the output volume?
  • Video class: Lecture 6 | Training Neural Networks I 1h20m
  • Exercise: Why can the sigmoid activation function make training deep networks difficult?
  • Video class: Lecture 7 | Training Neural Networks II 1h15m
  • Exercise: What is the main reason Adam uses bias-correction terms for its moment estimates early in training?
  • Video class: Lecture 8 | Deep Learning Software 1h18m
  • Exercise: Why are GPUs typically much faster than CPUs for convolution and matrix multiplication in deep learning?
  • Video class: Lecture 9 | CNN Architectures 1h17m
  • Exercise: In an Inception module, what is the main purpose of inserting 1×1 convolutions (bottleneck layers) before expensive 3×3 and 5×5 convolutions?
  • Video class: Lecture 10 | Recurrent Neural Networks 1h13m
  • Exercise: In CNN architectures like GoogLeNet and ResNet, what change helped significantly reduce the number of parameters compared to AlexNet/VGG?
  • Video class: Lecture 11 | Detection and Segmentation 1h14m
  • Exercise: In semantic segmentation, what is the model expected to output for an input image?
  • Video class: Lecture 12 | Visualizing and Understanding 1h15m
  • Exercise: Why is visualizing the learned weights of the first convolutional layer often interpretable as showing what the filters detect?
  • Video class: Lecture 13 | Generative Models 1h17m
  • Exercise: In PixelCNN, how is the image likelihood p(X) modeled for training?
  • Video class: Lecture 14 | Deep Reinforcement Learning 1h04m
  • Exercise: In deep Q-learning for Atari games, what is the main purpose of experience replay?
  • Video class: Lecture 15 | Efficient Methods and Hardware for Deep Learning 1h16m
  • Exercise: Why does the lecture emphasize reducing memory access when designing efficient CNN inference hardware?
  • Video class: Lecture 16 | Adversarial Examples and Adversarial Training 1h21m
  • Exercise: What is the key idea behind the Fast Gradient Sign Method (FGSM) for generating adversarial examples in CNN-based classifiers?

This free course includes:

19 hours and 30 minutes of online video course

Digital certificate of course completion (Free)

Exercises to train your knowledge

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