augmented reality

Augmented Reality- Yesha Kava

SYCO-A

In fundamental terms, the expression augmented reality, often abbreviated to AR, refers to a simple combination of real and virtual (computer-generated) worlds.

Given a real subject, captured on video or camera, the technology 'augments' (= adds to) that real-world image with extra layers of digital information.

Combining digital information, photographs and 4G video, streets are represented by three-dimensional graphics which even allow the user to enter buildings and see a live video stream.

Introduction

A notable example of an augmented reality app is Recognizer, which links face recognition software to social networking profiles. This means that you could simply capture a person's image in your mobile's viewfinder, and potentially have access to their identity, contact details and a range of personal information.

Introduction

Most Augmented Reality research focuses on see-through devices, usually worn on the head that overlay graphics and text on the user's view of surroundings.

Just as monitors allow us to see text and graphics generated by computers, head-mounted displays (HMDs) will enable us to view graphics and text created by augmented-reality systems.

Head Mounted Displays

There are two basic types of HMDS:◦ optical see-through◦ video see-through

Head Mounted Displays

Optical see-through displays:

Video see-through displays:

Handheld Augment Reality employs a small computing device with a display that fits in a user's hand. Handheld AR employed sensors such as digital compasses and GPS units for its six degree of freedom tracking sensors.

Handheld Displays

Spatial Augmented Reality (SAR) makes use of digital projectors to display graphical information onto physical objects.

Spatial Displays

Objects in the real and virtual worlds have to be properly aligned with respect to each other.

Some applications demand accurate registration., e.g., virtual surgery where error can be fatal!!

Registration errors can also cause motion-sickness.

Registration

Medical Entertainment Military training Engineering design Robot path planning Manufacturing, Maintenance and Repair Consumer Design Portability

Applications

Technological Limitations:◦ Displays, trackers, and AR systems in general

need to become more accurate, lighter, cheaper, and less power consuming.

◦ The display isn’t very bright and completely washes out in bright sunlight.

◦ The equipment isn’t nearly as portable as desired. Since the user must wear the PC, sensors, display, batteries, and everything else required.

User Interface Limitations:o Need a better understanding of how to display data

to a user and how the user should interact with the data.

Limitations

AR has a great future as it promises better navigation and interaction with real and virtual world in ways which has previously been unimaginable.

Future Scope…

Video

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References…