VIRTUAL REALITY

PRESENTED BY, JANSIRANI.T, NIRMALA.S,

II-ECE

INTRODUCTIONINTRODUCTION

VR is generally a computer generated VR is generally a computer generated environment that makes the user think environment that makes the user think that they are in the real environment.that they are in the real environment.

Virtual world is hosted on a computer in Virtual world is hosted on a computer in the form of database.the form of database.

Virtual objects consists of polygonVirtual objects consists of polygon It will have a position (x,y,z) an It will have a position (x,y,z) an

orientation as well as attributes.orientation as well as attributes.

VR provides interaction through the VR provides interaction through the use of sensors and effectors in a use of sensors and effectors in a simulated environment.simulated environment.

Advanced in simulation technology Advanced in simulation technology allow computer resources to be allow computer resources to be interconnected with humans through interconnected with humans through the use of sensor systems and the use of sensor systems and robotic devices.robotic devices.

Types- Desktop VR system and Types- Desktop VR system and Immersive VR systemImmersive VR system

CHARACTERISTICS OF IMMERSIVE CHARACTERISTICS OF IMMERSIVE VR SYSTEMVR SYSTEM

• Head referenced viewing provides a Head referenced viewing provides a natural interface for the navigation in natural interface for the navigation in three dimensional space.three dimensional space.

• Stereoscopic viewing enhances the Stereoscopic viewing enhances the perception of depth and sense of space.perception of depth and sense of space.

• Virtual world is presented in full scale and Virtual world is presented in full scale and relates properly to the human size.relates properly to the human size.

• Realistic interactions with virtual objects Realistic interactions with virtual objects through data glove.through data glove.

HEAD MOUNTED DISPLAY

Channels the images from the screens to the eyes, presenting a stereo view of a virtual world.

Continuously measures the position of users head and adjust the scene representation to the current view.

Viewer can realize the surrounding virtual environment

BOOMBOOM

Head coupled stereoscopic display device.Head coupled stereoscopic display device. User looks into the box through two holes sees User looks into the box through two holes sees

the virtual world.the virtual world. Head tracking is accomplished through sensors Head tracking is accomplished through sensors

in the links of arm that holds the box.in the links of arm that holds the box.

VIRTUAL RETINAL SYSTEM

Visual display device that uses scanned light beams.

Instead of viewing a screen the user gets the image scanned directly into the eye.

Every small spot is focused onto the retina. Uses low power and very bright.

Applications

To develop nanotechnology devices and chemical systems.

NASA uses 3 dimensional simulations of the space station, the landscape of MARS were constructed.

Image guided surgery in medical field. Searching of networked databases and

libraries.

Prototyping and planning and complex Prototyping and planning and complex computer tasks.computer tasks.

Assistance for handicapped Assistance for handicapped To treat phobias (fear of height ).To treat phobias (fear of height ). In orthopedics and neurosurgery.In orthopedics and neurosurgery. Design evaluation and maintainenance Design evaluation and maintainenance

taskstasks

CONCLUSION

VR is new but rapidly growing area in medicine which will revolutionize the health care in future.

The impact of this technology is just beginning to recognized to technical breakthrough in the past few years.

physician patient relationship must be incorporated into new systems.

THANK YOU

QUERIES………..