Transcript Basics of 3D Scanning

Title: Basics of 3D Scanning
Data 04/21/2010
Prepared by Morgan Baron, Fellow – GK12 Program
Presented at BCTS, Teterboro Campus
Supported by: NSF Graduate Teaching Fellow in K-12 Education
Program
Associated Institution: Stevens Institute of Technology - Hoboken, NJ
Introduce students to 3D scanning
Basics of 3D Scanning
• Use light to evaluate the surface of an object
Time Of Flight
Signal sent @ t = 0
Impact @ t = 1ns
Object
Transceiver
Signal received @ t=3ns
Transceiver
Distance = c x t/2
= 3x10^8 x 1.5 x10^-9
Return @ t = 1ns
Object
Design Process
Matsushita’s (Panasonic’s) 3D Organization
Design Process
Matsushita’s (Panasonic’s) 3D Organization
Digitized Die Making
Hasegawa Kakouzyo Ltd
Golden Compass
‘Best Visual Effects’
2008 Academy Award Winner
"The task of creating such highly realistic, computer-generated bears
does not start on the computer," states Sean Varney,
Sean Varney goes on to say, "We use the VI-910 digitizer from
Konica Minolta to capture 3D data sets of each of the models
Art and Culture
Virtual Heritage: High Quality
Acquisition and Presentation
http://www.vihap3d.org/news.html
Other Laser Applications
NOAA's Aerial Photo of World Trade Center Image taken by
NOAA's Cessna Citation Jet on Sept. 23, 2001 from an altitude
of 3,300 feet using a Leica/LH systems RC30 camera. Image
released Oct. 2, 2001 at 6:15 p.m. EDT (Image Credit:
NOAA/U.S. Army JPSD)
Remote Sensing
Other Applications
Do you know why I stopped you?
Traffic Enforcement
Other Applications
Autonomous Vehicle Guidance
Safety First
Class 1 Laser
Class I lasers are low powered devices that are considered safe from all potential
hazards. Some examples of Class I laser use are: laser printers, CD players, CD ROM
devices, geological survey equipment and laboratory analytical equipment. No
individual, regardless of exposure conditions to the eyes or skin, would be expected
to be injured by a Class I laser. No safety requirements are needed to use Class I laser
devices.
Procedure
• Describe object and dimensions
• Calculate distance of scanner
• Place object
• Adjust scanner
• Scan
• Evaluate
Notes for Scanning
• Consider using flat/featureless side for bottom
• Capture side or sides with most features
• We are using the telephoto lens
• We will be using One Scan mode
• Accuracy increases as distance increases, shadowing decreases as distance
decreases
Vivid 910 Guidelines