A model for a PC-based, universal-format, multimedia digitization system: moving beyond the scanner.
OBJECTIVE
Digitizing images for use in case presentations based on hardcopy films, slides, photographs, negatives, books, and videos can present a challenging task. Scanners and digital cameras have become standard tools of the trade. Unfortunately, use of these devices to digitize multiple images in many different media formats can be a time-consuming and in some cases unachievable process. The authors' goal was to create a PC-based solution for digitizing multiple media formats in a timely fashion while maintaining adequate image presentation quality.


METHODS
The authors' PC-based solution makes use of off-the-shelf hardware applications to include a digital document camera (DDC), VHS video player, and video-editing kit. With the assistance of five staff radiologists, the authors examined the quality of multiple image types digitized with this equipment. The authors also quantified the speed of digitization of various types of media using the DDC and video-editing kit.


RESULTS
With regard to image quality, the five staff radiologists rated the digitized angiography, CT, and MR images as adequate to excellent for use in teaching files and case presentations. With regard to digitized plain films, the average rating was adequate. As for performance, the authors recognized a 68% improvement in the time required to digitize hardcopy films using the DDC instead of a professional quality scanner.


CONCLUSIONS
The PC-based solution provides a means for digitizing multiple images from many different types of media in a timely fashion while maintaining adequate image presentation quality.
McEachen
James C
JC
Department of Radiology, University of Illinois College of Medicine, 530 NE Glen Oak Dr, SF NB 4695, Peoria, IL 61637, USA.
Cusack
Thomas J
TJ
McEachen
John C
JC
D003201:Computers; D003952:Diagnostic Imaging / Q000295:instrumentation*; D007091:Image Processing, Computer-Assisted; D019212:Multimedia