Book Image

Applied Deep Learning and Computer Vision for Self-Driving Cars

By : Sumit Ranjan, Dr. S. Senthamilarasu
Book Image

Applied Deep Learning and Computer Vision for Self-Driving Cars

By: Sumit Ranjan, Dr. S. Senthamilarasu

Overview of this book

Thanks to a number of recent breakthroughs, self-driving car technology is now an emerging subject in the field of artificial intelligence and has shifted data scientists' focus to building autonomous cars that will transform the automotive industry. This book is a comprehensive guide to use deep learning and computer vision techniques to develop autonomous cars. Starting with the basics of self-driving cars (SDCs), this book will take you through the deep neural network techniques required to get up and running with building your autonomous vehicle. Once you are comfortable with the basics, you'll delve into advanced computer vision techniques and learn how to use deep learning methods to perform a variety of computer vision tasks such as finding lane lines, improving image classification, and so on. You will explore the basic structure and working of a semantic segmentation model and get to grips with detecting cars using semantic segmentation. The book also covers advanced applications such as behavior-cloning and vehicle detection using OpenCV, transfer learning, and deep learning methodologies to train SDCs to mimic human driving. By the end of this book, you'll have learned how to implement a variety of neural networks to develop your own autonomous vehicle using modern Python libraries.
Table of Contents (18 chapters)
1
Section 1: Deep Learning Foundation and SDC Basics
5
Section 2: Deep Learning and Computer Vision Techniques for SDC
10
Section 3: Semantic Segmentation for Self-Driving Cars
13
Section 4: Advanced Implementations

The sequential model

The sequential model is like a linear stack of layers. It is useful for building simple models, such as the simple classification network and encoder-decoder models. It basically treats the layer as an object that is fed into the next layer.

For most problems, the sequential API lets you create layer-by-layer models. It restricts us from creating models that share layers or have multiple inputs or outputs.

Let's look at the Python code for this:

  1. Let's begin by importing the key Python libraries:
In[1]: import tensorflow as tf
In[2]: from tensorflow import keras
In[3]: from tensorflow.keras import layers
  1. We will define the model as a sequential model (In[4]) and then add a flatten layer. With the hidden layer, we have 120 neurons (In[6], In[7]), and the activation function is Rectified Linear Units (ReLU). In[8] is the last layer as it has 10 neurons and a softmax function; it turns logits into probabilities that sum to one:
In[4]: model = tf.keras...