Title: Basics of 3D Scanning

Data 04/21/2010Prepared by Morgan Baron, Fellow – GK12 ProgramPresented at BCTS, Teterboro CampusSupported by: NSF Graduate Teaching Fellow in K-12 Education ProgramAssociated 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

Return @ t = 1ns

Transceiver Object

Signal sent @ t = 0Impact @ t = 1ns

Transceiver Object

Signal received @ t=3ns

Distance = c x t/2= 3x10^8 x 1.5 x10^-9

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 CultureVirtual Heritage: High Quality Acquisition and Presentation

http://www.vihap3d.org/news.html

Other Laser Applications

Remote Sensing

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)

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