Main content for "Services"

Document Scanning

Description

Working in cooperation with the University Libraries’ E-Reserve Database service, Digital Imaging provides scanning support for the digitization of printed materials for use in on-line course preparation. Single-sided photocopies of journal and newspaper articles, book chapters, and other printed course materials that adhere to the E-Reserve copyright and fair use guidelines (http://scholar.lib.vt.edu/copyright/libcguid.html) can be scanned, saved as PDF files, and transferred directly to E-Reserve for inclusion in the on-line database.

The E-Reserve service allows members of the university community to access, read, print, and download Virginia Tech on-line course materials. For more information on using the E-Reserve database refer to the Reserve Services web site at http://www.lib.vt.edu/services/circ-reserve/reservemain.html.

Production Process
  • Support for single-sided pages of photocopied documents submitted through the University Libraries’ E-Reserve service.
  • Documents are primarily scanned in monochrome for black and white materials, but can be scanned in grayscale if needed. The grayscale option creates significantly larger file sizes than monochrome and should be used only if pictures are included that are critical to the content of the material.
  • Resolution of the scanned monochrome documents will be set at 400 dpi while 200 dpi is used for grayscale documents.
  • Typical documents are scanned at a size of 8.5″ x 11″. Sizes up to 11.7″ x 17.0″ can be supported if needed.
  • Scans are saved in Adobe Acrobat PDF format and are transferred automatically to E-Reserve for integration into the database.

Flat Art/Photograph Scanning

Description

Digital Imaging supports archival scanning of a wide range of flat art materials for development of on-line course content as well as for research purposes. Materials such as photographs, illustrations, transparencies, x-ray film, and gels, as well as larger items such as newspapers, ledgers, manuscripts, posters, framed paintings, large scale drawings, and blueprints can be converted to digital format for use in computer-based instruction and made available for on-line research access.

Production Process
  • Archival quality scanning preserves all of the original material’s image information such as size, proportions, coloration, and visible flaws, without any image enhancement. Archival scanning also involves capturing sufficient descriptive points of information so that the scanned image can be reproduced in another media format such as a printed reproduction or display.
  • Archival scans are saved at a resolution of 300 ppi (grayscale or color) for images 8″ x 10″ or larger. Smaller images are scanned at an adequate resolution to make an enlargement approximately 8″ x 10″ of the image for output purposes.
  • Image files are saved in uncompressed TIFF format.
  • Scans are saved on CD-R discs in a hybrid format readable by both Macs and PCs, or, for larger collections, saved on 4.7 GB DVD-R general purpose discs.

35mm Slide Scanning

Description

Archival scanning of 35mm slide collections can be performed by our department in support of course preparation and research projects. This service provides faculty and departments with the opportunity to convert large image collections into digital format for use in developing on-line courses, computer-based multimedia instruction, and searchable image databases.

Production Process
  • Support for standard 2″ x 2″ 35mm slides loaded in a Kodak Ektapro 80 or equivalent universal carousel slide tray. Standard plastic, cardboard, and glass slide mounts in good condition between 1.1 mm to 3.1 mm thick are acceptable. Kodak Ektachrome and Kodachrome film types can be scanned with accurate color preservation.
  • Archival quality scanning preserves all of the original material’s image information such as size, proportions, coloration, and visible flaws, without any image enhancement. Archival scanning also involves capturing sufficient descriptive points of information so that the scanned image can be reproduced in another media format such as a printed reproduction or display.
  • Archival scans of 35mm slides are digitized at an adequate resolution to make an enlargement approximately 8″ x 10″ of the image for output purposes.
  • Image files are saved in uncompressed TIFF format.
  • Scans are saved on CD-R discs in a hybrid format readable by both Macs and PCs, or, for larger collections, saved on 4.7 GB DVD-R general purpose discs.

3D Scanning

Description

Courses and research requiring work with models or other small inanimate objects can benefit from our high resolution three-dimensional scanning service. Many types of items can be digitized on our 3D system, including, for example, industrial design models, art project sculptures, musical instruments, life sciences models, and engineering design models. The files resulting from these scans can be imported for use in a variety of CAD/CAM applications to create 3D animation for on-line courseware and presentation software.

Production Process
  • Maximum object size supported:
    • Width ……………………… 51cm (20″)
    • Height …………………….. 36.5cm (14.4″)
    • Depth ……………………… 48cm (18.9″)
    • Weight ……………………. 29Kg (64 lbs)
  • 3D scanning captures an array of digitized points, with each point represented by x, y, and z coordinates.
    Sampling pitch:
    • X or Theta ……………….. Depends upon motion platform speed; 30 samples per second in X; typically 0.25 – 1.0mm (0.010″ – 0.040″)
    • Y …………………………….. 700mm (0.028″)
    • Z …………………………… Depends upon surface quality; minimum 100mm (0.004″)
  • Scans can be translated into file formats suitable for popular third-party programs such as AutoCAD, Surfacer, 3D Studio, Power Animator, Maya, Softimage, and many others. Possible output formats:
    • 3D Studio
    • ASCII
    • Digital Arts (SGI Only)
    • DXF
    • DXF (3D FACES)
    • IGES 106 110 124
    • IGES 128 NURBS
    • Inventor
    • MOVIE.BYU (SGI Only)
    • OBJ
    • PLY
    • Echo
    • STL
    • VRML
    • SCR (Mesh & Slice) (SGI Only)
  • Scans are saved on CD-R discs in a hybrid format readable by both Macs and PCs.

Bound Book Scanning

Description

Custom scanning of pages from books and other bound documents

Production Process
  • Archival scanning preserves all of the original material’s image information such as size, proportions, coloration, and visible flaws without any image enhancement.
  • This service incorporates a non-destructive book scanning system created by Kirtas Technologies that provides a safe and efficient method of digitizing bound books using a unique automated page-turning technology, a high resolution digital camera, and post-scan batch processing software.
  • Materials accepted: bound books and documents ranging in size from 4.5″ x 7″ to 11″ x 14″.
  • Both the front and back sides of each page in the book is initially captured at 3328 ppi x 4992 ppi (16.6 megapixels) in 36-bit RGB color as the archive scan. The archival files approximate 300 ppi (minimum resolution) at the book’s original page size in 24-bit color and saved in uncompressed TIFF format.
  • Technical metadata with collection information, original material descriptions, and image capture details is added to the TIFF header of each file in XMP format using a MIX-based schema.
  • If required, all of the pages in the book can be formatted, in order, and saved as a single Adobe Acrobat PDF file (document properties are set for “Single Page Continuous” and “Fit Page” magnification at resolutions suitable for screen viewing).
  • File naming is determined based on the needs specified at the time the scanning request is submitted.
  • Completed files are stored on 4.7 GB DVD-R general purpose discs (a small fee is charged for recovery of disc costs).

Additional special request services available:

  • Unique collection materials that require special handling for such things as extreme size, fragile condition, nonstandard image cropping, or alternative resolution demands can be negotiated within the limits of the current scanning equipment as needed.

Project Development Process

Submit a Proposal