Hochauflösendes Scansystem für komplette Aufbewahrungseinheiten wie Kästen oder Schubladen
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Revision as of 17:48, 4 September 2012 by Ulla Biener (Talk | contribs)
Contents
DScan - a high-performance digital scanning system for entomological collections
Scanning system hardware
- Industrial strength aluminium frame (LWH = 1080 × 1080 × 1500 mm) with linear units
- Servo drives and precision ball screw spindles allow minimum step distance of 0.02 mm at a maximum speed of 100 mm/s
- Effective travel ranges: 600 × 600 mm horizontally (x- and y-axis) and 200 mm vertically (z-axis)
- Operation by PC-controlled console (netbook) with ProNC software (DNC Software Ltd, www.pronc.com)
Camera hardware
- Nikon D300 DSLR camera with a 12 megapixel APSC sensor, Voigtländer 90 mm Apo-Lanthar macro lens
Lighting
- 2 Bowen Gemini 500/500C studio flashes
Computer hardware
- Workstation equipped with two 2.26 Ghz Intel Xeon processors with 12 MB cache, 24 MB RAM, high-end graphic card, 8 TB HD storage
Server infrastructure
- Storage server for images, image web publication server, web server
Workflow
- Images of a single drawer taken in sequential order as determined by the controlling unit
- Images captured in RAW format, developed using Capture NX2 (www.capturenx.com) and saved as 8- or 16-bit TIFF images
- Captured images assembled (“stitched”) using AutoPano Giga (Kolor, www.kolor.com)
- Creation of "zoomable" images using Krpano (krpano GmbH, krpano.com)
Contact
- Dr. Stefan Schmidt
- Dr. Michael Balke
External Links
Publications
Schmidt, S., Balke, M. & Lafogler, S. 2012. DScan – a high-performance digital scanning system for entomological collections. In: Blagoderov V, Smith VS (Ed) No specimen left behind: mass digitization of natural history collections. ZooKeys 209: 183–191. pdf
