Real-Time Embedded Systems

2

 

 

A Case Study: Vision Control

 

CONTENTS

2.1 Input Output on Computers

2.1.1 Accessing the I/O Registers

2.1.2 Synchronization in I/O

2.1.3 Direct Memory Access (DMA)

2.2 Input/Output Operations and the Operating System

2.2.1 User and KernelModes

2.2.2 Input/Output Abstraction in Linux

2.3 Acquiring Images froma Camera Device

2.3.1 Synchronous Read from a Camera Device

2.3.2 VirtualMemory

2.3.3 Handling Data Streaming from the Camera Device

2.4 Edge Detection

2.4.1 Optimizing the Code

2.5 Finding the Center Coordinates of a Circular Shape

2.6 Summary

This chapter describes a case study consisting of an embedded application performing online image processing. Both theoretical and practical concepts are introduced here: after an overview ...