Hochauflösende Kameraeinrichtung optimiert für dreidimensionale Makroobjekte (Flechten)

From GBIF-D-IT
Jump to: navigation, search

Workstation with high resolution camera for digitalisation of mycological/ lichenological macroobjects

640px-Macro2.jpg 530px-Macro1.jpg

Hochaufloesende_Kameraeinrichtung_optimiert_fuer_dreidimensionale_Makroobjekte_2012-09-03.jpeg Hochaufloesende_Kameraeinrichtung_optimiert_fuer_dreidimensionale_Makroobjekte_2012-09-04.jpg

Camera hardware

Lighting

Until December 2014:

  • 1 x CN-126 LED Video Lighting (5400 K, 650 lx, diffusor filter)
  • 2 x LED-5001 Video Light (5500 K, 700 lx, diffusor filter)

Since January 2015:

  • 2 x F&V 5600K-3200K Bi-color Flood K4000s LED Studio Light Panel (diffusor filter)

Digitization workstation - computer hardware and software

Hardware:

  • Intel Core i7-870 CPU (8M Cache, 2.93 GHz)
  • 8 GB RAM
  • 2 x Western Digital WD5002ABYS-02B1B0 (500 GB, SATA2) RAID 0 HDD
  • NVIDIA Quadro 2000 graphics card (1 GB DDR5 frame buffer)
  • QUATO Intelli Proof 242 ex 24" proof monitor
  • Handheld barcode scanner (USB)

Software:

  • Windows 7 Ultimate 64 Bit
  • Capture One (Phase One) RAW converter and image editing software

Digitizing server infrastructure

Storage server for images, image web publication server, web server, database server - at the SNSB IT Center

Digitizing workflow

  • Herbarium sheets and accompanying drawings (if present) are photographed
  • Internal accession numbers (barcodes) are scanned via hand-held scanner and automatically set as filenames
  • Lens correction filters are applied
  • Brightness, contrast, tonal values are adjusted
  • Images are flipped to portrait format and edges are cropped (if necessary)
  • Images are automatically saved as compressed (lossless) RAW files (EIP)
  • RAW files are exported as TIFF (uncompressed, Adobe RGB 1998, 1200 px/in)
  • TIFF image files will be processed, provided and archived:
    • an image copy converted to JPG and less resolution will be made and provided on the image web publication server, suitable for web usage
    • a link to this image will be placed in the corresponding data record of DiversityCollection
    • the original image will be archived on local data storage and furthermore as long-term preservation at the Leibniz Rechenzentrum München
  • The whole procedure takes between 2,5 and 8 minutes, the average is about 4 minutes. Capture of metadata in DiversityCollection takes about 5 minutes.

Contact person(s)

Sebastian Werner

Dr. Tobias Lehmann

Dr. Konstanze Bensch

Notes

Digitization station optimized according to JSTOR Plant Science recommendations.

JSTOR Plant Science: An Introduction - Video 2010