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OpenCV 3 Blueprints

You're reading from   OpenCV 3 Blueprints Expand your knowledge of computer vision by building amazing projects with OpenCV 3

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Product type Paperback
Published in Nov 2015
Publisher
ISBN-13 9781784399757
Length 382 pages
Edition 1st Edition
Tools
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Toc

Table of Contents (9) Chapters Close

Preface 1. Getting the Most out of Your Camera System FREE CHAPTER 2. Photographing Nature and Wildlife with an Automated Camera 3. Recognizing Facial Expressions with Machine Learning 4. Panoramic Image Stitching Application Using Android Studio and NDK 5. Generic Object Detection for Industrial Applications 6. Efficient Person Identification Using Biometric Properties 7. Gyroscopic Video Stabilization Index

Difference between recognition, detection, and categorization

For completely understanding this chapter, it is important that you understand that the Viola and Jones detection framework based on cascade classification is actually an object categorization technique and that it differs a lot from the concept of object recognition. This leads to a common mistake in computer vision projects, where people do not analyze the problem well enough beforehand and thus wrongfully decide to use this technique for their problems. Take into consideration the setup described in the following figure, which consists of a computer with a camera attached to it. The computer has an internal description of four objects (plane, cup, car, and snake). Now, we consider the case where three new images are supplied to the camera of the system.

Difference between recognition, detection, and categorization

A simple computer vision setup

In the case that image A is presented to the system, the system creates a description of the given input image and tries to match it with the...

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