By L.Madhuri

06R51A0526

Introductionhow does it workImportantHaptic InteractionAdvantagesReferencesConclusionApproaching

INTRODUCTION

• Define “hap tic “ as a technology that adds the sense of touch to virtual environments.• Hap tics refer to senseing and manipulation through touch. The word comes from the Greek “haptesthai” meaning to touch

Haptic Systems

• Sensor(s) • Actuator (motor) control circuitry • One or more actuators that

either vibrate or exert force • Real-time algorithms (actuator

control software, which we call a “player”) and a haptic effect library

• Application programming interface (API), and often a haptic effect authoring tool

Why Use Haptics?

Haptics

Digital Tablet

CyberGlove

Mouse

Keyboard

Velocity

Torque

Angular orientation

Pressure

Force

3DPosition

2D Position

Time

What is haptic interaction?

"A haptic interface is a force reflecting device which allows a user to touch, feel, manipulate, create and/or alter simulated 3D objects in a virtual environment"

haptic. (Adjective Grk: haptein) having to do with the sense of touch; tactile

haptics = touch, tactile, force-feedback, using force/resistance, texture, heat, vibration

What application areas are best suited to haptic input?

• medicine, for training, surgical simulation

• other risky/specialised areas, e.g. astronauts, mechanics

• education about complex objects, e.g. chemistry • creative 3D work, e.g. modelling, product design

• interaction for disabled

• interaction in 3D and VR environments

What sorts of product are being produced?

• magnetic levitation interaction devices • exoskeletal devices

• the Phantom haptic interaction device • the Pantograph

Bill Buxton “hand on=finger on”Not exploiting the interface to computing up with computeing powerMore 3D ad VR environments in games and elsewhereDemand for richer input and output possibilities

Reduction in low energy Increase in productivity and comfort Decreased learning timesLarge reduction in manipulation error

• ATMs / Self-service kiosks • Cameras • Electronic books • Fitness equipment • Handheld gaming • Home & office automation • Industrial controls • Media players and controls • Medical equipment • Mobile and desktop phones

• Personal direction-finding

• Home & office automation

• Industrial controls • Medical equipment • Notebook and desktop Pe

rsonal Computers • Point of Sale systems • Vehicle interiors

• Appliances • ATMs / Self-service kiosks • Fitness equipment • Home & office automation • Industrial controls • Media controls • Medical equipment • Personal Computers • Point of Sale systems • Vehicle interiors • Home • Technology

REFERENCES

• References• Anderson, M. L. (2003). Embodied Cognition: A field• guide. Artificial Intelligence, 149, 91-130.• Balota, D. A., Yap, M. J., Cortese, M.J., Hutchison, K. A.,• Kessler, B., Loftis, B., Neely, J. H., Nelson, D. L.,• Simpson, G. B., & Treiman, R. (2007). The English• Lexicon Project. Behavior Research Methods, 39, 445-• 459.• Barsalou, L. W. (1999). Perceptual symbol systems.• Behavioral and Brain Sciences 22, 577–660.• Barsalou, L. W. (2008). Grounded cognition. Annual• Review of Psychology, 59, 617–645.

References

http://haptic.mech.nwu.eHaptic Community Website, an on-line resource for researchers in haptic interaction

http://haptic.mech.nwu.edu/intro/gallery/ The Image Gallery section of the Haptic Community Website. Very interesting

http://www.cs.cmu.edu/afs/cs.cmu.edu/project/msl/www/virtual/virtual_desc.html WYSIWYF work at Carnegie Mellon. Excellent, clear description with video demos

http://www.sensable.com/ Sensable — leading product designers and developers in haptic hardware, software and applications. Makers of Phantom.

http://www.haptech.com Another leading haptics manufacturer — interesting and easy to use site

http://www.dgp.toronto.edu/people/BillBuxton/InputSources.html Bill Buxton’s embyonic directory of every input device known to mankind…

conclusion

Total Solution

•Scalability – HapticTouch technology can be applied to small and large surfaces and a wide range of form factors.

•Thin – our low profile design is the thinnest solution available.

•Ease of Integration – The active surfaces can often be integrated into your existing industrial design, resulting in minimal changes and fast time to market.

•Reliable – Our approach uses well understood materials and processes, so manufacturers can design systems for long life, even in the most hostile environments.

•Power Efficient – HapticTouch systems sip power with minimal impact to battery life.

•Fast Response Times – Surface response is virtually instantaneous, ensuring a compelling experience no matter how fast the interaction.

•Design Freedom –HapticTouch technology enables next generation designs that exceed user expectations. Keyboard/keypads can be credit card thin, easily cleanable and fully rugged. Touch screens and touch pads can deliver intuitive tactile feedback for a satisfying user experience. Appliances, automobiles, and industrial control systems can implement reliable, digital-sensing technology without sacrificing usability.

• Incorporating adaptive feedback between the feature extraction and the feature selection.

• Reducing the size of haptic data.• Combining with other Biometrics.• Embedded in Game-like environment.