Laboratory Acquires new Vivid 910 Non-Contact Digitizer
Recently the visionlab has been able to acquire a new piece of lab equipment : a Vivid 910 3D digitizer manufactured by Konica Minolta. This should be a great tool for research and education. Interested readers may read on to know more about this equipment.....
Speed - scans in less than one second (Fast Mode)
Precision - over 300,000 points with range resolution to 0.0016" (Fine Mode)
Simplicity - point and shoot simplicity for consistently excellent results
Flexibility - only Konica Minolta offers interchangeable lenses for variable scanning volumes
Ideal for applications like:
Quality Control Inspection of production parts (e.g. CAT)
First Article Inspection; Tool and Die Verification
Industrial Design: capture design studies into CAD database
Rapid Prototyping Input
Reverse Engineering: create CAD legacy data from master parts
3-D shape capture for Computer Aided Engineering Analysis (CAE and FEA)
Medical Applications: Surgical Planning (maxillofacial, dental and orthopedic), orthotics and prosthetics, plastic surgery, anthropometric measurements
Archiving: Museums, Artifact cataloging, Archeology, Anthropology research
Work has started on image processing techniques for performing experiments using data available from the Mars rovers Spirit and Opportunity. A significant amount of the rover power is expended on communications, i.e., receiving instructions and sending data back to Earth. Automatic detection of interesting features can be used to perform semi-autonomous experimentation. Automatically performed experiments will reduce the amount of transmitted instructions to the spacecraft. Energy saved using the more efficient communication scheme may then be allocated to other mission critical tasks such as prolonging the life of the spacecraft or further experimentation, data collection, and transmissions.
If a surface of revolution such as an archaeological pot is broken into many fragments it is clear that given accurate measurements of all the pieces, one may reconstruct the broken object from its pieces. In a new paper, we describe how to reconstruct surfaces such as these using only their apparent outer contour when viewed from the side. One major benefit of this approach is that the surface may be reconstructed from pieces which may not share a matching boundary. All that is necessary to reconstruct the apparent contour is a set of fragments which, when matched, cover the entire apparent contour of the unknown pot shape. From the figure below, (a) and (c) are 3D meshes of 2 fragments from a single pot. Their estimated apparent outer contours are (b) and (d) respectively. The complete profile estimated by matching the apparent contours is shown in (e). Note that the curve in (e) may be revolved around the pot's axis of symmetry (also estimated) to regenerate the a-priori unknown pot outer surface.