Hochauflösendes Scansystem für komplette Aufbewahrungseinheiten wie Kästen oder Schubladen
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, www.krpano.com)
Contact
- Dr. Stefan Schmidt
- Dr. Michael Balke
External Links
Publications
Balke, M., Schmidt, S., Hausmann, A., Toussaint, E. F. A., Bergsten, J., Buffington, M., Häuser, C. L., Kroupa, A., Hagedorn, G., Riedel, A., Polaszek, A., Ubaidillah, R., Krogmann, L., Zwick, A., Fikáček, M., Hájek, J., Michat, M. C., Dietrich, C., La Salle, J., Mantle, B., Ng, P. K. L. & Hobern, D. 2013. Biodiversity into your hands – A call for a virtual global natural history ‘metacollection’. Frontiers in Zoology 10: 1-9. doi:10.1186/1742-9994-10-55
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
Schmidt, S., Spelda, J., Balke, M. (2014). From specimens to drawers: mass digitisation efforts at the Bavarian State Collection of Zoology in Munich, Germany. In Mallison, H., Vogel, J., Belvedere, M. (eds.), Digital Specimen 2014. - Abstracts of Presentations. 69.
