+ All Categories
Home > Science > Tactile brush

Tactile brush

Date post: 15-Apr-2017
Category:
Upload: imetliao
View: 229 times
Download: 0 times
Share this document with a friend
38
Tactile Brush Drawing on Skin with a Tactile Grid Display Chichi 10/1 Paper reading
Transcript
Page 1: Tactile brush

Tactile BrushDrawing on Skin with a Tactile Grid Display

Chichi 10/1 Paper reading

Page 2: Tactile brush

Ali IsrarHaptic Researcher and EngineerPurdue University ME PhD.

Surround Haptics

TeslaTouch

Aireal

Page 3: Tactile brush

What is Haptics

• Haptics is sensed all around the human body; beyond the head/face region of the human body.

• Decoding haptic experiences are complex and multivariate, due to wide variety of touch receptors and perception modalities.

• Haptics is personal, affective yet delicate and invasive.

• Sensory illusions in haptics are robust and can be programmed.

Page 4: Tactile brush

Ivan PoupyrevMaster

“My job is to come up with new ideas, concepts and research directions. Some of these ideas have become real products, others inspired new research directions, while many others simply satisfy my curiosity.” --- Ivan Poupyrev

Page 5: Tactile brush

Ivan PoupyrevMaster

Page 6: Tactile brush

Tactile Brush

Page 7: Tactile brush

Paper Structure• Abstract• Introduction• Background and Related Work• Tactile Illusion as Design Tool

– Apparent Motion– Phantom Sensation

• Tactile Brush– Controlling Apparent Motion– Controlling Phantom Sensation– Tactile Brush Algorithm

• Evaluation• Applications • Conclusion

Page 8: Tactile brush

Abstract

Page 9: Tactile brush

Tactile Brush is an algorithm that produces smooth, two-dimensional tactile moving strokes with varyingfrequency, intensity, velocity and direction of motion.

Page 10: Tactile brush

The design of the algorithm is derived from the results of psychophysical investigations of two tactile illusions – apparent tactile motion and phantom sensations.

Page 11: Tactile brush

Introduction

Page 12: Tactile brush

Research in developing tactile displays can be separated into two broad categories:

• Design of actuation technologies and control techniques needed to produce a microstructure of tactile sensations

• Construction of high-order tactile percepts to communicate complex meanings, expressions and experiences.

Page 13: Tactile brush

Tactile Brush, a control algorithm that uses a low-resolution grid of vibrating actuators to producehigh-resolution tactile strokes on skin.

Page 14: Tactile brush

The basic idea:• utilize the apparent motion illusion to create tactile

motion sensation between vibrating actuators• use phantom illusion to create virtual actuators

where no physical actuator is present.

Page 15: Tactile brush

The basic idea:• utilize the apparent motion illusion to create tactile

motion sensation between vibrating actuators• use phantom illusion to create virtual actuators

where no physical actuator is present.

Page 16: Tactile brush

Background and Related Work

Page 17: Tactile brush

Tactile Illusions as Design Tool

Page 18: Tactile brush
Page 19: Tactile brush

Tactile Brush

Page 20: Tactile brush

Two parameters

• SOA vs duration (d) for a.

• Actuator intensitiesfor b.

Page 21: Tactile brush

Principles, definitions and challenge

• Define a moving tactile stroke as a sensation that:– Continuous motion– A clear start and end– Perceived as a single semantic unit– Can move with varying velocity

Page 22: Tactile brush

Principles, definitions and challenge

Page 23: Tactile brush

Tactile Apparatus

Page 24: Tactile brush

Controlling Apparent Motion

Page 25: Tactile brush

Controlling Apparent Motion

Page 26: Tactile brush

Controlling Apparent Motion

• SOA = 0.32d + 47.3

Page 27: Tactile brush

Controlling Phantom Actuators

Page 28: Tactile brush

Controlling Phantom Actuators

• Beta = a/b

Page 29: Tactile brush

Tactile Brush Algorithm

Page 30: Tactile brush

Tactile Brush Algorithm• Virtual Actuation Points• Speed of Stroke and Timestamps• Duration and SOA

Page 31: Tactile brush

Evaluation

Page 32: Tactile brush

Evaluation

Page 33: Tactile brush

Application

Page 34: Tactile brush
Page 35: Tactile brush
Page 36: Tactile brush

Conclusion

Page 37: Tactile brush

The Tactile Brush algorithm provides a solution for creating two-dimensional, high-resolution, continuous moving sensations on the surface of the skin. Using Tactile Brush and a few off-the-shelf tactile actuators researchers and interfaces designers can begin creating complex and rich multidimensional tactile experiences.

Page 38: Tactile brush

Q & A


Recommended