FASTSCAN
COBRA+SCORPION
CREATE 3D MODELS IN REAL TIME
FastSCANTM instantly acquires three dimensional surfaces
by gathering measurements made by smoothly sweeping
a handheld laser scanning wand over an object -- in a
THE FAST AND EASY DIGITAL S C A N N E R
manner similar to spray painting. The object's image
instantly appears on your computer screen and the finished
Portable and Lightweight
scan is processed to combine any overlapping sweeps,
The industry's most portable and lightweight handheld laser scanner, FastSCAN
significantly reducing the time to develop surface models
goes everywhere you go -- archaeological digs, the plant floor, even sensitive areas like
of virtually any object with minor or no metal content.
medical examination rooms. Built with Polhemus' unique electromagnetic tracking
technology, FastSCAN is ideal for capturing 3D images of most non-metallic, opaque
objects in real-time -- even if the objects being scanned are moving.
3D Scanning Wand
FEATURES
FastSCAN works by projecting a fan of laser light on the object while the camera
views the laser to record cross-sectional depth profiles. By incorporating Polhemus-
Fast & Flexible
patented FASTRAK motion-tracking technology in the wand and processing unit, your
Handheld unit easily scans complex objects
in minutes
computer can reconstruct the full three-dimensional surface of an object in real time.
This 3D data can then be exported to a host of popular 3D modeling, graphics, and
Compact & Portable
Easily transported from room to room or hand
CAD programs.
carried to locations
Quick and Easy to Setup
From unpacking to first scan takes less than
MULTIPLE APPLICATIONS
20 minutes
Scans Moveable Objects
Reconstructive Surgery
A secondary reference receiver allows you to turn,
Provide qualitative view of before and after surgical
rotate, or move objects while scanning
procedures
Auto Stitches 3D Images as You Scan
Wound Healing
Scans stitch together in real time, eliminating
Track volumetric measurements of wounds
post processing
as they heal
Exports Scanned Objects to Industry Standard Formats
Over eleven export formats available
Orthotics and Prosthetics
Take accurate measurements of soft tissue
Suface Editing
for better fitting prosthetics
Select and delete raw data points from sweeps, allow-
ing for modification of raw scan
Industrial Design
Perfect for making precise measurements necessary
for ergonomic research
COMPONENTS
Rapid Prototyping and Reverse Engineering
Processing Unit
Quickly scans objects for file importation into
Custom electronics processor incorporating
your favorite CAD program
Polhemus FASTRAK® magnetic tracking technology
11.0 inches L x 11.4 inches W x 3.6 inches H
Archaeology
Accurately scans relics of the past in the lab,
Wand
museum, or field
Cobra - 230mm (9 inches) in length
Scorpion - 368.3mm (14.5 inches) in length
Forensics
Provide 3D representation of flesh and bone trauma
Laser
670nm, 1mW, Class II
FASTSCAN
TECHNICAL SUMMARY
SPECIFICATIONS
Reference System
Tracker transmitter
Tracker receiver for attachment to moveable objects
Interface
USB only
Using the same technology as the CobraTM, the two
Software
cameras of the ScorpionTM allow for more detailed
Flexible, intuitive GUI
scans. As both cameras on the wand view the laser
3D graphics: point cloud, wireframe, flat or smooth surface display, with or
from either side, cross-sectional profiles of the object
without normals
are recorded. Scanning is now almost twice as fast,
3D controls: rotate, zoom, center scan, and scaling
allowing the capture of surfaces that can sometimes
On screen direct linear measurements
be difficult using a single camera system.
Selectable resolution, faceted surface simplification, outlier removal
SYSTEM OPTIONS
Export formats to 3D Studio Max® (.3ds), ASCII (.txt), AutoCAD® (.dxf), IGES®
RBF Software Enhancements
(.igs), LightWave® (.lwo), MATLAB® (.mat), STL (.stl), Virtual Reality Modeling
·Automatic hole filling
Language (.wrl), Wavefront® (.obj), Open Inventor® (.iv), and Visualization Toolkit
·Smooth extrapolation of surfaces
(.vtk) Online support available at www.polhemus.com
·Mesh simplification while preserving scan detail
·Export of guaranteed closed, watertight meshes
Resolution
·Mesh is characterized by more uniform triangles
Laser line length increases with wand-object range, typically 150mm at 200mm
·Low pass filtering (smoothing) of scans
(6 inches at 8 inches) range
Stylus
Resolution along the laser line depends on wand-object range, typically 0.5mm at
Mechanical - Once initialized, pressing the stylus
200mm (0.02 inches at 8 inches) range
button generates a position and orientation marker
Scanning rate is 50 lines/second, line-to-line resolution depends on movement of
within the tracker's spatial system. These coordinates
wand, typically 1mm at 50mm/second (0.04 inches at 2 inches/second)
are recorded by the FastSCAN software and dis-
played on the screen. Digital reference markers pro-
Range
vide an indication of the exact position and orienta-
User selectable up to .75m or 75cm (30 inches) wand to transmitter and/or receiver
tion of the marked point.
to transmitter range; longer range is available with optional 4 inch trasnmitter
Optical - Stylus is built into the wand and turns the
FastSCAN into a point digitizer. The hinged shutter
Accuracy
is swung down when you are in laser mode and
With transmitter as reference, accuracy depends on wand-object range, typically
changes the laser line into a point. The location of
1mm at 200mm (0.04 inches at 8 inches) range
the point on the object's surface, and the orientation
With receiver as reference, accuracy also depends on receiver-object range
of the wand are recorded whenever the wand trigger
is depressed while in laser point mode.
Environment
Operation in the presence of metal objects or electromagnetic fields may interfere
Sweep Registration
with the scanner's tracking, and degrade performance. Because the scanning laser is
Small errors associated with the sweeps (e.g. slight
considered a light source, some surfaces may not be suitable for laser scanning, e.g.,
object movement), may be corrected through a
translucent, transparent, reflective, dark, or deeply convoluted surfaces.
process of sweep registration. The process is auto-
Surfaces may be treated to enhance laser camera sensitivity.
matic and takes just a few seconds.
Refraction Correction - Allows scanning through glass
Minimum Computer Requirements
1GHz (minimum) 2Ghz required for RBF option
- Image Comparative Analysis software
DeltaViewTM
512MB RAM, more is needed for larger data sets >1M pt's
Windows® 2000 or XP
AAOP file format - O&P medical file format
FASTRAK is a registered trademark of Polhemus. FastSCAN is a trademark of Polhemus.
DeltaView is a trademark of Applied Resarch Associates of New Zealand. Windows is a registered
trademark of Microsoft Corporation. All other trademarks and registered trademarks are the property
of their respective owners.
The systems are not certified for medical or bio-medical use. Any reference to medical or bio-medical use
40 Hercules Drive · PO Box 560 · Colchester, Vermont 05446-0560
are examples of what medical companies have done with the systems after obtaining all necessary or
US and Canada 800.357.4777 · 802.655.3159 · fax 802.655.1439 · www.polhemus.com
appropriate medical certifications. The end user/OEM must comply with all pertinent FDS/CE and all other
regulatory requirements.
FS: MSO39 Rev - April 2005
Copyright © 2001 Polhemus.
