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Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
Sympathetic Haptics Overview
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Sympathetic Haptics Overview

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An overview paper on Sympathetic Haptics presented in 2004 at national level paper presentation competition.

An overview paper on Sympathetic Haptics presented in 2004 at national level paper presentation competition.

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  • 1. Sympathetic Haptics Paper presented by Ajay Datta (VNIT Nagpur)
  • 2. Sympathetic Haptics
    • It means communicating the tactile experience to another remote user using some communication channel
    • It is a relatively new field still undergoing development
  • 3. In Touch With Computing
    • What is haptics?
    • Haptic (Hap’tik)
      • adj.(GR. Haptein, to touch )
      • Of, or having to do with, the sense of touch; tactile
      • Websters New World Dictionary
  • 4. What Is Haptics?
    • Haptics is the science of touch
    • It refers to the manual interactions with the environment
    • The sense of touch is the brains most effective learning mechanism
    • It’s communicated faster to the brain then audio or visual stimuli
  • 5. Human Haptics
    • There are two classes of sensory information
      • Tactile : From skin in contact with objects, fine textures, small shapes etc
      • Kinesthetic: Net forces along with position and motion of limbs, for large shapes
  • 6. Sympathetic Haptics Explained
    • Imagine there are two users A (transmitter) and B (receiver) sitting at two computer terminals.
    • A holds an object. The data glove he wears captures the pressure he applies as he uses it.
    • A's tactile experience is transmitted over the Net to B, who receives the data using a sensing tool. B is now able to feel the hardness or softness of the object the same way as A feels.
    • The screen shows the orientation of A's hand so that B can mimic that orientation for a total experience.
  • 7. Haptic Applications
    • Medicine
      • Surgical simulators for training
      • Manipulating robots for minimally invasive surgery
      • Telemedicine, remote diagnosis
      • Accessibility for the disabled
  • 8. Haptic Applications 2
    • One to one training
      • Can provide training to sportsmen
      • Can help train surgeons
    • The arts
      • Virtual painting, sculpting
      • Virtual musical instruments
  • 9. Haptic Applications 3
    • Entertainment
      • Video games, simulators that enable the user to feel and manipulate objects in the environment
    • Education
      • Give remote training to students
      • Studying complex data sets
  • 10. Haptic Applications 4
    • Industry
      • CAD systems
      • Virtual prototyping
        • Assembly and disassembly can guide final design
      • Shape sculpting
        • Expressive, free-form shape generation and modification
  • 11. The Technology Behind Haptics
    • Development of haptic interface depends on the knowledge gained from how humans sense and communicate touch
  • 12. How Humans Sense Touch Mechanical Stimulus Skin Stresses and strains in the neighborhood of the receptor Receptor Terminal Neural Response
  • 13. Physiology Of Touch
    • Mechanoreceptors are responsible for detecting touch. For example BNC1 detects light touch
    • The tactile information detected by these receptors is sent to the Primary sensory Cortex of the brain where it is processed and acted upon
    The White shaded area is the primary sensory cortex
  • 14. Haptic interaction- In humans and in haptic interface device
  • 15. Design Of Haptic Interfaces
    • It must work with human abilities and limitations
    • It must be able to approximate the real world tactile forces
  • 16. A Good Haptic Interface
    • Free motion must feel free
      • Low back-drive inertia and friction
      • No motion constraints
    • Ergonomics and comfort
      • Pain, discomfort and fatigue will detract from the experience
    • Suitable range, resolution and bandwidth
  • 17. Research And Developments
    • A lot of research is still going on in the field of Haptics
    • Many haptic interfaces using this technology have been built and patented by many companies
    • Sympathetic haptics is a relatively new entrant but is a major focus of research due to its immense potential applications
  • 18. The Companies Involved
    • SensAble Technologies:
      • Producers of haptic interfaces like the Phantom and Ghost
    • Immersion Technologies:
      • It is involved in using this technology to build interfaces for hospitals, military and in consumer peripherals
  • 19. Some Examples Of Haptic Devices
    • Phantom:
      • Developed by SensAble technologies
    • The movie shows the Phantom haptic interface device at work
  • 20. Cyber glove
    • Cyber glove
      • Developed by immersion
  • 21. Challenges
    • Incomplete knowledge of human touch response limits the realism that can be achieved at present
    • Cost of hardware limits the consumer base and thus profit and development
    • Portability limits the device's flexibility for different uses
    • Users find it hard to pick up information with one grasp of an object, the tactile forces given by these devices are still not perfect
    • Low Bandwidth for communication also is a major limiting factor as far as transfer of the touch experience is concerned
  • 22. Conclusion
    • Sympathetic Haptics has immense potential spanning over diverse areas
    • It has already made way into the marketplace but to a limited extent
    • For the widespread use of this technology, a major thrust both by the consumers and the corporate world is required
  • 23. The End

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