Augmented reality takes the real world and through the use of graphics, sound and other effects allows you to enhance the environment.It makes a game more real. Your social media app puts you where want to be or go. Pro iOS 5 Augmented Reality walks you through the foundations of building an augmented reality application for the iPhone or iPad. From using MapKit, to the accelerometer and magnetometer, to integrating facial recognition and Facebook data, you'll learn the building blocksof creating augmented reality applications. Case studies are included in this one-of-a-kind book and you'll learn how to create augmented reality apps that unleash the full potential of the on-board sensors and camera. This book complements other iOS game or social media apps development books available from Apress. After reading Pro iOS 5 Augmented Reality, you'll be able to buildaugmented realityrich media apps orintegrate all the bestaugmented reality techniques and tools into your existingapps. What youll learn The differences in hardware sensors, cameras and more between the iPhone 4 and iPhone 4S, iPod touch, iPad and iPad 2 How to use MapKitandintegrate it into your app How to play and record sound within an augmented reality app How to use the iPhone or iPad camera and video How to program against the accelerometer and gyroscope to detect movement and the orientation of the iPhone or iPad How to access and use the information from the magnetometer (compass) How to use cocos2D to overlay a heads-up display on the camera view How to integrate facial recognition into your app How to buildaugmented realityfeature-rich enterprise game and Facebook apps Who this book is for This book is for iOS developers familiar with iOS programming, but new to the camera, accelerometer, magnetometer and buildingaugmented realityapplications in general. Table of Contents Introduction Hardware Comparisons Location Services iOS Sensors Sound and User Feedback Camera and Video Using cocos2D for AR Building a cocos2D AR Game Third-party AR SDKs Building a Marker-based AR App Using OpenGL Building a Social AR App OpenCV and Facial Recognition Building a Facial-recognition AR App