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FastSCAN COBRA
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When you need a fast and
easy way to create 3D objects - in real-time -
look to the revolutionary FastSCAN COBRA® or
SCORION® 3D Handheld Laser Scanner.
Now with higher Accuracy!
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The new FastSCAN Cobra™ is 30% less expensive and 50% smaller, while retaining all functional capability, allowing continued ease of use and greater portability. FastSCAN Cobra instantly acquires three dimensional surfaces by gathering measurements made by smoothly sweeping a handheld laser scanning wand over an object - in a manner similar to spray painting. The object's image instantly appears on your computer screen and the finished scan is processed to combine any overlapping sweeps, significantly reducing the time to develop surface models of virtually any object with little or no metal content. The three-dimensional data can then be saved in industry-standard formats for loading into other programs.
FastSCAN Cobra™ 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.
Built upon the same technology as the COBRA™, the two-camera SCORPION™ system allows more detail to be captured with each sweep of the handheld scanning wand. Each camera on the wand views the reflected laser line independently which expedites data acquisition. The SCORPION system allows better coverage with fewer data dropouts due to occlusion. Scanning is fast, particularly helpful when scanning
more complex 3D surfaces.
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Components |
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The FastSCAN system includes a System Electronics Unit (SEU), a power supply, one receiver and one transmitter.
System Electronics Unit: Contains the hardware and software necessary to generate and sense the magnetic fields, compute position and orientation, control the handheld laser scanner and interface with the host computer via a high speed RS-232 port (at up to 115.2K baud).
Transmitter: The transmitter is a triad of electromagnetic coils, enclosed in a plastic shell, that emits the magnetic fields. The transmitter is the system's reference frame for receiver measurements.
Handheld Laser Scanner: Contains the Laser unit, one (COBRA) or two video cameras (SCORPION) which record the three-dimensional surface of the scanned object and the receiver which is detecting the position of the Scanner.
FastSCAN Cobra and Scorpion is free of any motorized gantry or mechanical arm!
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Features |
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New Stylus Marker Functionality Option
Once initialized, pressing the stylus button generates a position and orientation marker within the tracker's spatial system. These coordinates are recorded by the FastSCAN Cobra software and displayed on the screen. Digital reference markers provide an indication of the exact position and orientation of the marked point. The digital reference can then be exported.
Goes Where No Scanner Has Gone Before
As the industry's most portable and lightweight handheld scanner, FastSCAN Cobra allows you to go where no scanner has gone before - on archeological digs, directly to the plant floor, and in to sensitive areas such as medical examination rooms.
Create Affordable Models in Real Time
Significantly speeding up the modeling process, FastSCAN Cobra instantly stitches together an exact replica of the object while it is being scanned.
With a Sweep of the Wand...
Measurements are made by smoothly sweeping the FastSCAN Cobra Wand over the object - in a manner similar to spray painting.
Instant 3D Images
Just like magic, an image of the object appears on your computer screen and the finished scan is processed to combine overlapping sweeps. Exports to Industry Standard Graphics Applications This three-dimensional data can then be saved in industry-standard formats for loading into a host of popular 3D modeling, graphics and CAD programs.
The "Magic Wand" of 3D Scanning
FastSCAN Cobra works by projecting a fan of laser light on the object while cameras on the Wand view the laser from either side to record the 3D surfaces of the object.
Polhemus FASTRAK Inside
It's magic comes from incorporating Polhemus patented FASTRAK® motion tracking technology in the wand itself. The 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.
Scan Moving Objects
You can also scan objects that are prone to movement - head and hands, for example. Just attach a second Tracker Receiver to the object.
Perfect for Non-conducting Objects
Since FastSCAN Cobra uses electromagnetic technology to create its magic, you'll find it ideal for scanning non-conducting, opaque objects.
The Extraordinary 3D Scanner
For the ultimate in 3D scanning, experience the revolutionary FastSCAN Cobra Handheld 3D Laser Scanner for yourself.
FastRBF Extensions Option
FastRBF extensions offer key scanning benefits:
- - Automatic hole filling
- - Smooth extrapolation of surfaces
- - Mesh simplification with scan detail preservation
- - Export guaranteed closed, water tight meshes
- - Mesh is characterized by more uniform triangles
- - Low pass filtering (smoothing) of scans
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-> Auto stitches 3D images as you scan
-> Fast and flexible
-> Compact and portable
-> Quick and easy to set up
-> Minimal shape restriction
-> Scans moveable objects
-> Exports scanned object to industry standard formats
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Export Smoothing
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Two exports of the same surface at different export smoothing parameters. The Export Smoothing parameter controls how much smoothing FastSCAN Cobra uses when merging sweeps. A low value creates a more detailed surface, but will fail to merge more widely separated sweeps. A higher value will merge sweeps better, but will remove more surface details.
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Specifications |
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FastSCAN COBRA
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Processing Unit
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Custom electronics video processor
Polhemus FASTRAK® magnetic tracker |
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Wand
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230 mm (9 in) in length
miniature monochrome camera
1 laser diode: 670 nm, 1 mW, Class II
Tracker Receiver |
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Reference System
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Tracker Transmitter
Tracker Receiver for attachment to movable objects |
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Interface
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Connects to ECP capable parallel port (LPT1), additional card available (LPT2) |
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Software
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3D graphics: point, wireframe, flat or smooth surface display
controls: rotate, zoom, center scan
Selectable resolution, faceted surface simplification, outlier removal
Export polygon mesh to 3D Studio Max®, ASCII Points, AutoCAD Points and 3D Faces, IGES Points, Lightwave Object, Matlab Mesh, STL, Virtual Reality Modeling Language, Wavefront Object, Open Inventor and others. |
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Resolution
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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). |
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Range
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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
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With Transmitter as Reference, accuracy depends on Wand-Object range, typically 0,178 mm at 200 mm range (0,005 in at 8 in)
With Receiver as Reference, accuracy also depends on Receiver-Object range |
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Environment
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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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Minimum Computer Requirements
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Pentium III, 600MHz, 128MB RAM for WIN2000
Pentium II, 266MHz, CD-ROM, 64MB RAM minimum, ECP capable parallel port, Windows NT 4, preferably OpenGL accelerated graphics card. |
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Notes: This product is protected by New Zealand Patent 293713, and other patents pending.
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Specifications subject to change without notice.
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Applications |
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- Animation
- Archeology
- Architecture
- Broadcast & Movies
- Computer Games
- Education
- Industrial Design
- Medical
- Multimedia & Web Design
- Rapid Prototyping & Reverse Engineering
- Research
Scanning People
The handheld laser scanner can be used to digitize a human shape for animation, multimedia, custom apparel design, biomedical research, forensics, etc. The following example demonstrates the scanner's ability to:
- scan a human subject rapidly while subject remains still;
- 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 from a conventional turntable-based laser scanner.
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