cse 165: 3d user interactionivl.calit2.net/wiki/images/a/a3/08-input2w15.pdfoptical tracking: hiball...
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CSE 165:
3D User
InteractionLecture #8:Input Devices Part 2
Instructor:Jurgen Schulze, Ph.D.
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Announcements
� Homework Assignment #2� Due tomorrow, January 30th at 1:00pm
� Next project will use Sony Move� To be handed out tomorrow during grading
2CSE 165 - Winter 2015
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Input Devices
CSE 165 - Winter 2015 3
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� Android app:
� Download “Augmented Reality Try it Free”
by CreativiTIC from Google Play Store
� App uses Vuforia from Qualcomm for
image recognition
� Then point at images on next slide
4CSE 165 - Winter 2015
Augmented Reality
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5CSE 165 - Winter 2015
Augmented Reality
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Optical Tracking: HiBall� HiBall-3100 tracker system, distributed by 3rd Tech
� Developed within wide-area tracking research project at UNC Chapel Hill
� System is composed of:
� HiBall Optical Sensor
� Views infrared LEDs in beacon arrays on ceiling with 6 lenses and photodiodes
� Ceiling beacon arrays
� Tracker update rate: 2,000 Hz
� No metal or sound interference
HiBall beacon array
6CSE 165 - Winter 2015
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Ultrasonic Tracking• Systems measure duration of an
ultrasound signal to reach
microphones.
• InterSense system uses combination of
ultrasound and gyroscope.
InterSense IS-900 Wand
Logitech 3D Mouse
InterSense IS-900 tracker
7CSE 165 - Winter 2015
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Hybrid Devices: Haptic
Feedback Devices
� PHANToM haptic
device
� Force feedback
joystick
� Exoskeleton-like
devices
Microsoft force feedback joystick
LEXOS: Frisoli et. al., Italy
SensAble PHANToM
Immersion CyberForce
8CSE 165 - Winter 2015
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Tracking Devices: Bend-
Sensing Gloves
�CyberGlove, 5DT
�Reports hand posture
�Gesture:
� single posture
� series of postures
� posture(s) + location or motion
9CSE 165 - Winter 2015
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Pinch Gloves� Determine if two or more fingertips
are touching
� Use conductive cloth to close
circuit
� Tethered to controller box
� Designed for pinching and
grabbing gestures
� Recognize any gesture of 2 to 10
fingers touching, plus combinations
of gestures
� Had problems with reliability
www.fakespacelabs.com
10CSE 165 - Winter 2015
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Optical Finger Tracking
� Extension of ART system
� Tracks three fingers and the hand
11CSE 165 - Winter 2015
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Optical Finger Tracking
�Oblong Industries g-speak
� Video:
http://www.youtube.com/watch?v=9Opmx
bPzDM0
12CSE 165 - Winter 2015
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Special Purpose Device:
Cubic Mouse
� Developed at Fraunhofer Institute
by B. Frohlich and J. Plate
� Cube shaped box with three rods
represents a physical coordinate
system
� 6DOF tracker is inside cube
� Rods used to manipulate x-, y-, and
z- coordinates of an object (built
for controlling cutting planes)
� Target application area: volume
rendering for oil and gas industry
13CSE 165 - Winter 2015
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Cubic Mouse Video
� http://www.youtube.com/watch?v=1Wu
H7ezv_Gs
14CSE 165 - Winter 2015
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Application-Specific
Devices� Virtual hang-gliding over
Rio de Janeiro
(L. Soares at. al.)
� Virtual canoe, Siggraph
2005
� Real-time water simulator
with pre-computed 3D
fluid dynamics
� Creates realistic wakes
and force feedback of
water resistance
15CSE 165 - Winter 2015
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Cave Painting� Physical props (brush, color palette, bucket) allow intuitive painting
� System created by Daniel Keefe at Brown University (now Prof. at Univ. of Minnesota)
16CSE 165 - Winter 2015
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Cave Painting Video� http://www.youtube.com/watch?v=WQv-
LnHrmwU
17CSE 165 - Winter 2015