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Proceedings Paper

Preliminary Experience With A Laser Scanner And Printer System For Radiological Imaging
Author(s): Hiroshi Takeuchi; Ricky K. Taira; H. K. Huang; Shih Chung B. Lo; Nicholas J. Mankovich
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Paper Abstract

The digital radiology department demands an accurate means to both digitize x-ray film and to represent digital data on film. This paper gives preliminary test results of the performance of a prototype laser scanner and printer system manufactured by the Konishiroku Photo Ind. Co., Ltd., for use in radiological imaging. The laser scanner digitizes x-ray film at a resolution of 2000x2400x10 bits for a 14x17 inch film. A variety of film sizes and optical density ranges can be scanned. The laser printer writes a digital image onto either 8x10 or 14x17 inch film with a pixel size of 80x80 microns. A 14x17 inch film can be written at up to 4288x5275x8 bit pixel resolution. A maximum of 16 images can be placed onto a single film. Software controlled look-up tables are used to correct for nonlinearities in the production of film density from digital data. Image magnification and minification are available under software control. Tests of uniformity, linearity, contrast and spatial resolution, signal to noise ratio, and laser field intensity distribution experiments for the laser scanner and printer have been conducted. This paper presents the results of these tests and some early clinical results.

Paper Details

Date Published: 16 September 1985
PDF: 7 pages
Proc. SPIE 0536, 3rd Intl Conf on Picture Archiving and Communication Systems, (16 September 1985); doi: 10.1117/12.947331
Show Author Affiliations
Hiroshi Takeuchi, Konishiroku Photo Ind. Co. (Japan)
Ricky K. Taira, University of California (United States)
H. K. Huang, University of California (United States)
Shih Chung B. Lo, University of California (United States)
Nicholas J. Mankovich, University of California (United States)


Published in SPIE Proceedings Vol. 0536:
3rd Intl Conf on Picture Archiving and Communication Systems
Samuel J. Dwyer; Robert J. Schneider, Editor(s)

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