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HLS Handheld Laser Scanner |
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The “Magic
Wand” of 3D Laser Scanning |
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for 3D Modeling in Real-Time |
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FEATURES
- Auto stitches 3D images
as you scan
- Fast & flexible
- Compact & portable
- Quick and easy to
set up
- Minimal shape restriction
- Scans movable objects
Exports to industry
standard formats
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Applications
as limitless |
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as
your imagination ... |
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- Animation
- Archeology
- Architecture
- Broadcast & Movies
- Computer Games
- Education
- Industrial Design
- Medical
- Multimedia
& Web Design
- Rapid Prototyping
- Research
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Press
Release 1, Press
Release 2
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HLS is free
of any motorised gantry or mechanical arm
HLS quickly and conveniently produces three-dimensional measurements
of the surface of an object. The measurements are made by smoothly
sweeping the HLS Wand over the object, in a manner
similar to spray painting. Simultaneously, an image of the object
appears on the computer screen and the finished scan is processed
to combine overlapping sweeps. The three-dimensional data can
then be saved in industry-standard formats for loading into other
programs.
HLS is designed to scan non-metallic, opaque objects. The scanner
works by casting a fan of laser light over the object, while
cameras on the Wand view the laser from either side to record
cross-sectional profiles of the object. A magnetic tracker is
used to determine the position and orientation of the Wand, enabling
the computer to reconstruct the full three-dimensional surface
of the object. Movable objects may be scanned by attaching a
second Tracker Receiver to the object.
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Processing Unit |
• Custom electronics video processor
• Polhemus FASTRAK® magnetic tracker |
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Wand |
• 450 mm (18 in) in length
• 2 miniature monochrome cameras
• 1 laser diode: 670 nm, 1 mW, Class II
• Tracker Receiver |
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Reference System |
• Tracker Transmitter
• Tracker Receiver for attachment to movable
objects System |
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Interface |
• Connects to ECP capable parallel port
(LPT1), additional card available (LPT2)
• DMA ECP driver provided |
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Software |
• 3D graphics: point, wireframe, flat or
smooth surface display
• 3D controls: rotate, zoom, center scan
• Selectable resolution, faceted surface
simplification, outlier removal
• Export polygon mesh in .obj (Wavefront),
.wrl (VRML), .3ds, .dxf, .mat (Matlab), stl., .lwo (Lightwave
Object); points in .dxf, .igs (IGES), .txt (ASCII) |
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Resolution |
• Laser line length increases with Wand-Object
range, typically 150 mm at 200 mm range (6 in at 8 in)
• Resolution along the laser line depends
on Wand-Object range, typically 0.5 mm at 200 mm range (0.02
in at 8 in)
• Scanning speed is 50 lines/sec, line-to-line
resolution depends on scanning speed, typically 1 mm at 50 mm/sec
(0.04 in at 2 in/sec). Resolution |
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Range |
• Up to 760 mm (30 in) Wand-Transmitter
and Receiver-Transmitter range
• 75 mm to 680 mm (3 in to 27 in) Wand-Object
range |
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Accuracy |
• With Transmitter as Reference, accuracy
depends on Wand-Object range, typically 1 mm at 200 mm range
(0.04 in at 8 in)
• With Receiver as Reference, accuracy also
depends on Receiver-Object range |
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Environment |
• Operation in the presence of metal objects
or electromagnetic fields may interfere with the scanner’s
tracking and degrade performance. Providing the Transmitter,
Wand and Receiver are kept sufficiently far from metal objects
or fields they should not pose a problem.
• Because scanning relies on the cameras
seeing the laser line, some surfaces may not be suitable for
laser scanning, eg. translucent, reflective, dark or deeply convoluted
surfaces. |
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Min. Computer Requirements |
Pentium II, 266MHz, CD-ROM, 64MB RAM minimum,
ECP capable parallel port, Windows NT 4, preferably OpenGL accelerated
graphics card |
Notes
This product is protected by
New Zealand Patent 293713, and other patents pending.
Specifications subject to change
without notice |
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Applications
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3D Game Software Development:
Quickly and easily scan and digitize character
models.
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Production/Animation:
Create 3D characters for computer games, television
and movies.
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Education: Train computer game operators and digitize models.
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Architecture: Design work at the mock up level.
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Research:
Analyze
3D data in fields such as human interfacing, robotic visioning
and data processing.
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Clothing and Textiles:
Fit and determine dimensions.
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Industrial Design:
Examine conceptual design models, exporting to
rapid prototyping systems and reverse engineering.
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Museums:
Archive
and catalog information, taking inventory of museum objects to
form a database.
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Medical:
Perform
reconstructive and cosmetic surgery.
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Multimedia/Web: Create VRML characters.
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Scanning People
The handheld laser scanner can be used
to digitize human shape for animation, multimedia, custom aparrel
design, biomedical research and forensics, etc. The following
example demonstrates the scanner's ability to:
- scan sufficiently rapidly that a human
subject can simply hold still during scanning
- use the second Receiver on a headband
to track involuntary movement of the subject
- scan a complicated surface with convolutions
that would normally be obscured to a conventional turntable-based
laser scanner.
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Scanning Objects
The handheld laser scanner can be used
to digitize the surface of objects for animation, rapid prototyping,
3D measurement and archiving, etc. The following example demonstrates
the scanner's ability to:
- rapidly digitize the complete 3d surface
of an object
- save the data in industry standard formats
to be used by other programs.
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Scanning Large Objects
The handheld laser scanner has been used
by Ross Clarke of the Meat
Industry Research Institute NZ to scan lamb and beef carcasses
for 3D modelling by Andrew Pullan of Engineering
Science, Auckland University. This demonstrates its ability
to:
- scan large objects
- scan objects that are not rigidly mounted
by attaching the Reference to the object
- take the scanner to the object
- scan in harsh environments.
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Samples
These are some of the exported
scans you can download
from our Samples directory and also the Cortona VRML viewer.
     
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