How to learn Computer Vision? [Computer Vision Learning Path]- 2024

Do you want to know How to learn Computer Vision?… If yes, this article is for you. In this article, you will find the step-by-step Computer Vision Roadmap. Along with that, you will also find some best resources to learn Computer Vision.

Now without any further ado, let’s get started-

How to learn Computer Vision? [Computer Vision Learning Path]

Before I discuss the Computer Vision Roadmap, let’s see the Skills Required for Computer Vision–

The scope of computer vision is growing fast. According to a report, the market for computer vision is expected to increase from US$10.9 billion in 2019 to US$17.4 billion by 2024, at a growing CAGR of 7.8%.

So, to learn Computer Vision, you should have the following skills-

1. Maths Skills.
2. Programming Skills.
3. OpenCV Library
4. Deep Learning Frameworks
5. Convolutional neural networks (CNN)
6. Recurrent neural networks (RNN) 

Now, let’s move to the step-by-step Computer Vision Roadmap–

Step 1- Brush-Up Your Math skills

The first step or skill in computer vision is mathematical skills. It helps you to understand how computer vision algorithms work.

In daily use, computer vision algorithms depend on parameters and variables. Without any understanding of the underlying math, programming easily ends up guessing values

In mathematics, you need to learn the following subjects-

• Probability & Statistics.
• Linear Algebra.
• Calculus.

Now, let’s see the resources to learn math and statistics-

-Resources for Learning Statistics & Maths-

• Intro to Statistics– Udacity FREE Course
• Linear Algebra Refresher Course– Udacity FREE Course
• Basic Statistics (Online Course)
• Statistics and probability (Khan Academy)
• Practical Statistics for Data Scientists (TextBook)
• Data Science: Statistics and Machine Learning Specialization (Online Course)
• Statistics for Data Science (YouTube Video)
• Mathematics for Data Science Specialization  (Online Course)
• Khan Academy
• Data Science Math Skills (Online Course)

Step 2- Learn Programming Language

You need to develop good programming skills if you wanna become a computer vision expert. There are lots of programming languages are available, that you can choose from. The most used programming languages in Computer Vision are-

1. Python.
2. R.
3. C.
4. Java.

But, Python and R are the most suitable programming language for Computer Vision and Deep Learning. I would suggest you learn Python or R.

So, if you are a beginner, I will recommend you, learn Python.

Now, let’s see the resources to learn Python and R.

-Resources for Learning Python Programming-

• Introduction to Python Programming(Udacity Free Course)
• The Python Tutorial (PYTHON.ORG)
• CS DOJO (YouTube)
• Python 3 Tutorial (SOLOLEARN)
• Python For Data Science(Udemy Free Course)
• Programming with Mosh (YouTube)
• Corey Schafer (YouTube)

I am also going to list some free resources to learn R Programming. So, If you want to learn R, you can learn from these Free resources-

-Free Resources to Learn R-

1. R Basics – R Programming Language Introduction(Udemy Free Course)
2. R Programming (Coursera Free to Audit Course)
3. Learn R Quickly (Udemy Free Course)
4. R, ggplot, and Simple Linear Regression (Udemy Free Course)
5. R Programming Tutorial (YouTube Tutorial)
6. R Programming Full Course In 7 Hours (YouTube Tutorial)

Step 3- Learn OpenCV Library

OpenCV (Open Source Computer Vision) is a computer vision library that contains various functions to perform operations on pictures or videos.

It was originally developed by Intel but was later maintained by Willow Garage and is now maintained by Itseez. This library is cross-platform that is it is available in multiple programming languages such as Python, C++, etc.

You need to be well versed in the OpenCV library.

-Resources for Learning OpenCV Library-

1. Introduction to Computer Vision and Image Processing– Coursera
2. Computer Vision with OpenCV Python | Official OpenCV Course– Udemy
3. Introduction to Computer Vision with Watson and OpenCV– IBM
4. Python for Computer Vision with OpenCV and Deep Learning– Udemy
5. Deep Learning and Computer Vision A-Z™: OpenCV, SSD & GANs– Udemy
6. Python Project: pillow, tesseract, and OpenCV– University of Michigan
7. Learning OpenCV 4 Computer Vision with Python 3– Book
8. Computer Vision, Deep Learning, and OpenCV– Tutorial
9. OpenCV Tutorials– Official Website
10. OpenCV Course – Full Tutorial with Python– YouTube
11. LEARN OPENCV in 3 HOURS with Python– YouTube
12. OpenCV Python for Beginners– YouTube

Step 4- Learn Deep Learning Frameworks

You should have knowledge of Deep Learning Frameworks.

The most popular framework of Deep Learning-

1. TensorFlow.
2. Theano.
3. scikit learn.
4. PyTorch.
5. Keras.
6. DL4J.
7. Caffe.
8. Microsoft Cognitive Toolkit.

Now, let’s discuss some frameworks in detail-

a) Tensorflow-

Tensorflow is the most widely used framework in Machine Learning and Deep Learning. It is an open-source software library. It is used for numerical computation using the data flow graph.

b) Theano-

Theano helps you define, optimize, and evaluate mathematical operations. LASAGNE, BLOCKS, and KERAS are popular libraries.

c) scikit learn-

It is built on top of existing libraries like NUMPY, SCIPY, and MATPLOTLIB. It started as a GOOGLE SUMMER OF CODE and now has 23,000 Github commits.

Now, let’s see the resources to learn Deep Learning Frameworks–

-Resources for Learning Deep Learning Frameworks–

• Intro to Deep Learning with PyTorch– Udacity FREE Course
• Intro to TensorFlow for Deep Learning– Udacity FREE Course
• Introduction to Deep Learning & Neural Networks with Keras– Coursera
• Advanced Deep Learning with Keras– Datacamp
• Deep Learning Fundamentals with Keras– edX
• Complete Tensorflow 2 and Keras Deep Learning Bootcamp- Udemy
• TensorFlow 2 for Deep Learning Specialization– Coursera
• Introduction to Deep Learning with PyTorch– DataCamp
• Deep Neural Networks with PyTorch– Coursera
• PyTorch: Deep Learning and Artificial Intelligence– Udemy
• PyTorch for Deep Learning with Python– Udemy
• PyTorch Tutorials– pytorch.org

Step 5- Learn Convolutional neural networks (CNN)

CNN is used to construct the majority of computer vision algorithms.

Convolutional Neural Network is an algorithm of Deep Learning. That is used for Image Recognition and Natural Language Processing. Convolutional Neural Network (CNN) takes an image to identify its features and predict it.

Yann Lecun is the father of the Convolutional Neural Network. He is a student of Geoffrey Hilton. Geoffrey Hilton is the father of Artificial Neural networks.

Steps in Convolutional Neural Network-

In Convolutional Neural Network, there are basically the following steps-

1. Convolution Operation.
2. ReLU Layer.
3. Pooling.
4. Flattening.
5. Full Connection.

Now, let’s see the resources to learn CNN-

-Resources for Learning CNN-

• Convolutional Neural Networks– deeplearning.ai
• Intel® Edge AI Fundamentals with OpenVINO™– Udacity FREE Course
• Advanced Computer Vision with TensorFlow– Coursera
• Introduction to Computer Vision and Image Processing– Coursera
• Become a Computer Vision Expert– Udacity
• Deep Learning and Computer Vision A-Z™: OpenCV, SSD & GANs– Udemy
• Image Understanding with TensorFlow on GCP– Google Cloud Training

Step 6- Learn Recurrent neural networks (RNN) 

A Recurrent Neural Network is a network that can understand sequences and time.

And Sequences are not only text or music, they can also be videos (set of images).

It means that using RNNs and CNNs together is possible, and in fact, it could be the most advanced use of Computer Vision we have.

We can use RNN in action classification and movie generation.

So, you can learn RNN for computer vision.

-Resources for Learning RNN-

• Fundamentals of CNNs and RNNs– Coursera FREE Course
• Simple Recurrent Neural Network with Keras– Coursera Project
• Become a Computer Vision Expert– Udacity
• TensorFlow 1.x Deep Learning Cookbook– Book
• Recurrent Neural Network (RNN) Tutorial – YouTube

Step 7- Work on Projects 

Once you learn all the required Computer Vision skills, start working on Computer Vision projects. The more your work on projects, the more you will learn.

I am going to discuss some beginner-level project ideas for Computer Vision. These projects will help you to sharpen your computer vision skills and boost your resume. I would suggest you pick a project from this list and start working on that project.

1. People counting tool
2. Colors detection
3. Object tracking in a video
4. Pedestrian detection
5. Hand gesture recognition
6. Human emotion recognition
7. Road lane detection
8. Business card scanner
9. License plate recognition
10. Handwritten digit recognition
11. Iris Flowers Classification 
12. Family photo face detection
13. LEGO Brick Finder
14. PPE Detection
15. Face mask detection

So that’s all, only these skills are required to become a Computer Vision Expert. Congratulations, it’s your first step toward Computer Vision.

But the most important thing is to keep enhancing your skills by working on more and more challenges.

The more you practice, the more knowledge of Computer Vision you will gain. So after completing these steps, don’t stop, just find new challenges and try to solve them.

Now it’s time to wrap up!

Conclusion

In this article, I have discussed How to learn Computer Vision?. If you have any doubts or queries, feel free to ask me in the comment section. I am here to help you.

All the Best for your Career!

Happy Learning!

Thank YOU!

Learn Deep Learning Basics here.

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Though of the Day…

‘ Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young.

– Henry Ford