Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Artificial Vision and Language Processing for Robotics
Artificial Vision and Language Processing for Robotics

Artificial Vision and Language Processing for Robotics: Create end-to-end systems that can power robots with artificial vision and deep learning techniques

Arrow left icon
Profile Icon Morena Alberola Profile Icon Garay Maestre Profile Icon Molina Gallego
Arrow right icon
$38.99
Paperback Apr 2019 356 pages 1st Edition
eBook
$26.99
Paperback
$38.99
Subscription
Free Trial
Renews at $19.99p/m
Arrow left icon
Profile Icon Morena Alberola Profile Icon Garay Maestre Profile Icon Molina Gallego
Arrow right icon
$38.99
Paperback Apr 2019 356 pages 1st Edition
eBook
$26.99
Paperback
$38.99
Subscription
Free Trial
Renews at $19.99p/m
eBook
$26.99
Paperback
$38.99
Subscription
Free Trial
Renews at $19.99p/m

What do you get with Print?

Product feature icon Instant access to your digital eBook copy whilst your Print order is Shipped
Product feature icon Paperback book shipped to your preferred address
Product feature icon Download this book in EPUB and PDF formats
Product feature icon Access this title in our online reader with advanced features
Product feature icon DRM FREE - Read whenever, wherever and however you want
Product feature icon AI Assistant (beta) to help accelerate your learning
Table of content icon View table of contents Preview book icon Preview Book

Artificial Vision and Language Processing for Robotics

Chapter 2. Introduction to Computer Vision

Note

Learning Objectives

By the end of this chapter, you will be able to:

  • Explain the impact of artificial intelligence and computer vision

  • Deploy some of the basic computer vision algorithms

  • Develop some of the basic machine learning algorithms

  • Construct your first neural network

Note

This chapter covers an introduction to computer vision followed by a few important basic computer vision and machine learning algorithms.

Introduction


Artificial Intelligence (AI) is changing everything. It tries to mimic human intelligence in order to achieve different tasks.

The section of AI that deals with images is called computer vision. Computer vision is an interdisciplinary scientific field that tries to mimic human eyes. It not only makes sense out of the pixels that are extracted from an image, but also gains a higher level of understanding from that specific image by performing automated tasks and using algorithms.

Some of these algorithms are better at object recognition, recognizing faces, classifying images, editing images, and even generating images.

This chapter will begin with an introduction to computer vision, starting with some of the most basic algorithms and an exercise to put them into practice. Later, an introduction to machine learning will be given, starting from the most basic algorithms to neural networks, involving several exercises to strengthen the knowledge acquired.

Basic Algorithms in Computer Vision


In this topic, we will be addressing how images are formed. We will introduce a library that is very useful for performing computer vision tasks and we will learn about the workings of some of these tasks and algorithms and how to code them.

Image Terminology

To understand computer vision, we first need to know how images work and how a computer interprets them.

A computer understands an image as a set of numbers grouped together. To be more specific, the image is seen as a two-dimensional array, a matrix that contains values from 0 to 255 (0 being for black and 255 for white in grayscale images) representing the values of the pixels of an image (pixel values), as shown in the following example:

Figure 2.1: Image representation without and with pixel values

In the image on the left-hand side, the number 3 is shown in a low resolution. On the right-hand side, the same image is shown along with the value of every pixel. As this value rises, a brighter color...

Introduction to Machine Learning


Machine learning (ML) is the science of making computers learn from data without stating any rules. ML is mostly based on models that are trained with a lot of data, such as images of digits or features of different objects, with their corresponding labels, such as the number of those digits or the type of the object. This is called supervised learning. There are other types of learning, such as unsupervised learning and reinforcement learning, but we will be focusing on supervised learning. The main difference between supervised learning and unsupervised learning is that the model learns clusters from the data (depending on how many clusters you specify), which are translated into classes. Reinforcement learning, on the other hand, is concerned with how software agents should take action in an environment in order to increase a reward that is given to the agent, which will be positive if the agent is performing the right actions and negative otherwise.

In...

Summary


Computer vision is a big field within AI. By understanding this field, you can achieve results such as extracting information from an image or generating images that look just like they do in real life, for example. This chapter has covered image preprocessing for feature extraction using the OpenCV library, which allows easy training and prediction for machine learning models. Some basic machine learning models have also been covered, such as decision trees and boosting algorithms. These served as an introduction to machine learning and were mostly used to play around. Finally, neural networks were introduced and coded using Keras and TensorFlow as a backend. Normalization was explained and put into practice, along with dense layers, though convolutional layers are known to work better with images than dense layers do, and they will be explained later in the book.

Concepts for avoiding overfitting were also covered, and toward the end, we used the model to make predictions and put...

Left arrow icon Right arrow icon
Download code icon Download Code

Key benefits

  • Study ROS, the main development framework for robotics, in detail
  • Learn all about convolutional neural networks, recurrent neural networks, and robotics
  • Create a chatbot to interact with the robot

Description

Artificial Vision and Language Processing for Robotics begins by discussing the theory behind robots. You'll compare different methods used to work with robots and explore computer vision, its algorithms, and limits. You'll then learn how to control the robot with natural language processing commands. You'll study Word2Vec and GloVe embedding techniques, non-numeric data, recurrent neural network (RNNs), and their advanced models. You'll create a simple Word2Vec model with Keras, as well as build a convolutional neural network (CNN) and improve it with data augmentation and transfer learning. You'll study the ROS and build a conversational agent to manage your robot. You'll also integrate your agent with the ROS and convert an image to text and text to speech. You'll learn to build an object recognition system using a video. By the end of this book, you'll have the skills you need to build a functional application that can integrate with a ROS to extract useful information about your environment.

Who is this book for?

Artificial Vision and Language Processing for Robotics is for robotics engineers who want to learn how to integrate computer vision and deep learning techniques to create complete robotic systems. It will prove beneficial to you if you have working knowledge of Python and a background in deep learning. Knowledge of the ROS is a plus.

What you will learn

  • Explore the ROS and build a basic robotic system
  • Understand the architecture of neural networks
  • Identify conversation intents with NLP techniques
  • Learn and use the embedding with Word2Vec and GloVe
  • Build a basic CNN and improve it using generative models
  • Use deep learning to implement artificial intelligence(AI)and object recognition
  • Develop a simple object recognition system using CNNs
  • Integrate AI with ROS to enable your robot to recognize objects
Estimated delivery fee Deliver to Malaysia

Standard delivery 10 - 13 business days

$8.95

Premium delivery 5 - 8 business days

$45.95
(Includes tracking information)

Product Details

Country selected
Publication date, Length, Edition, Language, ISBN-13
Publication date : Apr 30, 2019
Length: 356 pages
Edition : 1st
Language : English
ISBN-13 : 9781838552268
Category :
Languages :
Tools :

What do you get with Print?

Product feature icon Instant access to your digital eBook copy whilst your Print order is Shipped
Product feature icon Paperback book shipped to your preferred address
Product feature icon Download this book in EPUB and PDF formats
Product feature icon Access this title in our online reader with advanced features
Product feature icon DRM FREE - Read whenever, wherever and however you want
Product feature icon AI Assistant (beta) to help accelerate your learning
Estimated delivery fee Deliver to Malaysia

Standard delivery 10 - 13 business days

$8.95

Premium delivery 5 - 8 business days

$45.95
(Includes tracking information)

Product Details

Publication date : Apr 30, 2019
Length: 356 pages
Edition : 1st
Language : English
ISBN-13 : 9781838552268
Category :
Languages :
Tools :

Packt Subscriptions

See our plans and pricing
Modal Close icon
$19.99 billed monthly
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Simple pricing, no contract
$199.99 billed annually
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Choose a DRM-free eBook or Video every month to keep
Feature tick icon PLUS own as many other DRM-free eBooks or Videos as you like for just $5 each
Feature tick icon Exclusive print discounts
$279.99 billed in 18 months
Feature tick icon Unlimited access to Packt's library of 7,000+ practical books and videos
Feature tick icon Constantly refreshed with 50+ new titles a month
Feature tick icon Exclusive Early access to books as they're written
Feature tick icon Solve problems while you work with advanced search and reference features
Feature tick icon Offline reading on the mobile app
Feature tick icon Choose a DRM-free eBook or Video every month to keep
Feature tick icon PLUS own as many other DRM-free eBooks or Videos as you like for just $5 each
Feature tick icon Exclusive print discounts

Frequently bought together


Stars icon
Total $ 121.97
Mobile Artificial Intelligence Projects
$38.99
Artificial Intelligence By Example
$43.99
Artificial Vision and Language Processing for Robotics
$38.99
Total $ 121.97 Stars icon

Table of Contents

9 Chapters
Fundamentals of Robotics Chevron down icon Chevron up icon
Introduction to Computer Vision Chevron down icon Chevron up icon
Fundamentals of Natural Language Processing Chevron down icon Chevron up icon
Neural Networks with NLP Chevron down icon Chevron up icon
Convolutional Neural Networks for Computer Vision Chevron down icon Chevron up icon
Robot Operating System (ROS) Chevron down icon Chevron up icon
Build a Text-Based Dialogue System (Chatbot) Chevron down icon Chevron up icon
Object Recognition to Guide a Robot Using CNNs Chevron down icon Chevron up icon
Computer Vision for Robotics Chevron down icon Chevron up icon
Get free access to Packt library with over 7500+ books and video courses for 7 days!
Start Free Trial

FAQs

What is the delivery time and cost of print book? Chevron down icon Chevron up icon

Shipping Details

USA:

'

Economy: Delivery to most addresses in the US within 10-15 business days

Premium: Trackable Delivery to most addresses in the US within 3-8 business days

UK:

Economy: Delivery to most addresses in the U.K. within 7-9 business days.
Shipments are not trackable

Premium: Trackable delivery to most addresses in the U.K. within 3-4 business days!
Add one extra business day for deliveries to Northern Ireland and Scottish Highlands and islands

EU:

Premium: Trackable delivery to most EU destinations within 4-9 business days.

Australia:

Economy: Can deliver to P. O. Boxes and private residences.
Trackable service with delivery to addresses in Australia only.
Delivery time ranges from 7-9 business days for VIC and 8-10 business days for Interstate metro
Delivery time is up to 15 business days for remote areas of WA, NT & QLD.

Premium: Delivery to addresses in Australia only
Trackable delivery to most P. O. Boxes and private residences in Australia within 4-5 days based on the distance to a destination following dispatch.

India:

Premium: Delivery to most Indian addresses within 5-6 business days

Rest of the World:

Premium: Countries in the American continent: Trackable delivery to most countries within 4-7 business days

Asia:

Premium: Delivery to most Asian addresses within 5-9 business days

Disclaimer:
All orders received before 5 PM U.K time would start printing from the next business day. So the estimated delivery times start from the next day as well. Orders received after 5 PM U.K time (in our internal systems) on a business day or anytime on the weekend will begin printing the second to next business day. For example, an order placed at 11 AM today will begin printing tomorrow, whereas an order placed at 9 PM tonight will begin printing the day after tomorrow.


Unfortunately, due to several restrictions, we are unable to ship to the following countries:

  1. Afghanistan
  2. American Samoa
  3. Belarus
  4. Brunei Darussalam
  5. Central African Republic
  6. The Democratic Republic of Congo
  7. Eritrea
  8. Guinea-bissau
  9. Iran
  10. Lebanon
  11. Libiya Arab Jamahriya
  12. Somalia
  13. Sudan
  14. Russian Federation
  15. Syrian Arab Republic
  16. Ukraine
  17. Venezuela
What is custom duty/charge? Chevron down icon Chevron up icon

Customs duty are charges levied on goods when they cross international borders. It is a tax that is imposed on imported goods. These duties are charged by special authorities and bodies created by local governments and are meant to protect local industries, economies, and businesses.

Do I have to pay customs charges for the print book order? Chevron down icon Chevron up icon

The orders shipped to the countries that are listed under EU27 will not bear custom charges. They are paid by Packt as part of the order.

List of EU27 countries: www.gov.uk/eu-eea:

A custom duty or localized taxes may be applicable on the shipment and would be charged by the recipient country outside of the EU27 which should be paid by the customer and these duties are not included in the shipping charges been charged on the order.

How do I know my custom duty charges? Chevron down icon Chevron up icon

The amount of duty payable varies greatly depending on the imported goods, the country of origin and several other factors like the total invoice amount or dimensions like weight, and other such criteria applicable in your country.

For example:

  • If you live in Mexico, and the declared value of your ordered items is over $ 50, for you to receive a package, you will have to pay additional import tax of 19% which will be $ 9.50 to the courier service.
  • Whereas if you live in Turkey, and the declared value of your ordered items is over € 22, for you to receive a package, you will have to pay additional import tax of 18% which will be € 3.96 to the courier service.
How can I cancel my order? Chevron down icon Chevron up icon

Cancellation Policy for Published Printed Books:

You can cancel any order within 1 hour of placing the order. Simply contact customercare@packt.com with your order details or payment transaction id. If your order has already started the shipment process, we will do our best to stop it. However, if it is already on the way to you then when you receive it, you can contact us at customercare@packt.com using the returns and refund process.

Please understand that Packt Publishing cannot provide refunds or cancel any order except for the cases described in our Return Policy (i.e. Packt Publishing agrees to replace your printed book because it arrives damaged or material defect in book), Packt Publishing will not accept returns.

What is your returns and refunds policy? Chevron down icon Chevron up icon

Return Policy:

We want you to be happy with your purchase from Packtpub.com. We will not hassle you with returning print books to us. If the print book you receive from us is incorrect, damaged, doesn't work or is unacceptably late, please contact Customer Relations Team on customercare@packt.com with the order number and issue details as explained below:

  1. If you ordered (eBook, Video or Print Book) incorrectly or accidentally, please contact Customer Relations Team on customercare@packt.com within one hour of placing the order and we will replace/refund you the item cost.
  2. Sadly, if your eBook or Video file is faulty or a fault occurs during the eBook or Video being made available to you, i.e. during download then you should contact Customer Relations Team within 14 days of purchase on customercare@packt.com who will be able to resolve this issue for you.
  3. You will have a choice of replacement or refund of the problem items.(damaged, defective or incorrect)
  4. Once Customer Care Team confirms that you will be refunded, you should receive the refund within 10 to 12 working days.
  5. If you are only requesting a refund of one book from a multiple order, then we will refund you the appropriate single item.
  6. Where the items were shipped under a free shipping offer, there will be no shipping costs to refund.

On the off chance your printed book arrives damaged, with book material defect, contact our Customer Relation Team on customercare@packt.com within 14 days of receipt of the book with appropriate evidence of damage and we will work with you to secure a replacement copy, if necessary. Please note that each printed book you order from us is individually made by Packt's professional book-printing partner which is on a print-on-demand basis.

What tax is charged? Chevron down icon Chevron up icon

Currently, no tax is charged on the purchase of any print book (subject to change based on the laws and regulations). A localized VAT fee is charged only to our European and UK customers on eBooks, Video and subscriptions that they buy. GST is charged to Indian customers for eBooks and video purchases.

What payment methods can I use? Chevron down icon Chevron up icon

You can pay with the following card types:

  1. Visa Debit
  2. Visa Credit
  3. MasterCard
  4. PayPal
What is the delivery time and cost of print books? Chevron down icon Chevron up icon

Shipping Details

USA:

'

Economy: Delivery to most addresses in the US within 10-15 business days

Premium: Trackable Delivery to most addresses in the US within 3-8 business days

UK:

Economy: Delivery to most addresses in the U.K. within 7-9 business days.
Shipments are not trackable

Premium: Trackable delivery to most addresses in the U.K. within 3-4 business days!
Add one extra business day for deliveries to Northern Ireland and Scottish Highlands and islands

EU:

Premium: Trackable delivery to most EU destinations within 4-9 business days.

Australia:

Economy: Can deliver to P. O. Boxes and private residences.
Trackable service with delivery to addresses in Australia only.
Delivery time ranges from 7-9 business days for VIC and 8-10 business days for Interstate metro
Delivery time is up to 15 business days for remote areas of WA, NT & QLD.

Premium: Delivery to addresses in Australia only
Trackable delivery to most P. O. Boxes and private residences in Australia within 4-5 days based on the distance to a destination following dispatch.

India:

Premium: Delivery to most Indian addresses within 5-6 business days

Rest of the World:

Premium: Countries in the American continent: Trackable delivery to most countries within 4-7 business days

Asia:

Premium: Delivery to most Asian addresses within 5-9 business days

Disclaimer:
All orders received before 5 PM U.K time would start printing from the next business day. So the estimated delivery times start from the next day as well. Orders received after 5 PM U.K time (in our internal systems) on a business day or anytime on the weekend will begin printing the second to next business day. For example, an order placed at 11 AM today will begin printing tomorrow, whereas an order placed at 9 PM tonight will begin printing the day after tomorrow.


Unfortunately, due to several restrictions, we are unable to ship to the following countries:

  1. Afghanistan
  2. American Samoa
  3. Belarus
  4. Brunei Darussalam
  5. Central African Republic
  6. The Democratic Republic of Congo
  7. Eritrea
  8. Guinea-bissau
  9. Iran
  10. Lebanon
  11. Libiya Arab Jamahriya
  12. Somalia
  13. Sudan
  14. Russian Federation
  15. Syrian Arab Republic
  16. Ukraine
  17. Venezuela