In the previous chapter, we learned how a camera captures a 3D scene by projecting light rays on a 2D sensor plane. The image produced is an accurate representation of what the scene looks like from a particular point of view in the instant that the image is captured. However, by its nature, the process of image formation eliminates all of the information concerning the depth of the represented scene elements. This chapter will examine how, under specific conditions, the 3D structure of the scene and the 3D pose of the cameras that captured it can be recovered. We will demonstrate how a good understanding of the concepts of projective geometry allows us to devise methods that enable 3D reconstruction. We will, therefore, revisit the principle of image formation that was introduced in the previous chapter; in particular, we will now take into consideration...
OpenCV 4 Computer Vision Application Programming Cookbook - Fourth Edition
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OpenCV 4 Computer Vision Application Programming Cookbook - Fourth Edition
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Overview of this book
OpenCV is an image and video processing library used for all types of image and video analysis. Throughout the book, you'll work with recipes to implement a variety of tasks. With 70 self-contained tutorials, this book examines common pain points and best practices for computer vision (CV) developers. Each recipe addresses a specific problem and offers a proven, best-practice solution with insights into how it works, so that you can copy the code and configuration files and modify them to suit your needs.
This book begins by guiding you through setting up OpenCV, and explaining how to manipulate pixels. You'll understand how you can process images with classes and count pixels with histograms. You'll also learn detecting, describing, and matching interest points. As you advance through the chapters, you'll get to grips with estimating projective relations in images, reconstructing 3D scenes, processing video sequences, and tracking visual motion. In the final chapters, you'll cover deep learning concepts such as face and object detection.
By the end of this book, you'll have the skills you need to confidently implement a range of computer vision algorithms to meet the technical requirements of your complex CV projects.
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Current Title:
OpenCV 4 Computer Vision Application Programming Cookbook - Fourth Edition
Table of Contents (17 chapters)
Preface
Free Chapter
Playing with Images
Manipulating the Pixels
Processing Color Images with Classes
Counting the Pixels with Histograms
Transforming Images with Morphological Operations
Filtering the Images
Extracting Lines, Contours, and Components
Detecting Interest Points
Describing and Matching Interest Points
Estimating Projective Relations in Images
Reconstructing 3D Scenes
Processing Video Sequences
Tracking Visual Motion
Learning from Examples
OpenCV Advanced Features
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