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Proceedings Paper

Technology for Hi-Vision Video Hardcopy
Author(s): Haruo Okuda; Shin Ohno; Makoto Tadenuma
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Paper Abstract

The practical use of Hi-Vision (HDTV, High Definition Television), a new quality television system, is close at hand. It is advantageous to apply Hi-Vision technology not only for moving pictures but also for still pictures like hardcopies. As the input signal inproves in quality, hardcopy should also increase in quality. In order to reproduce beautiful pictures, the hardcopying system must have: 1) A recording method of direct density modulation to ensure good gradation and resolution. 2) A recording stylus and medium for the reproduction of the recording dots (pixels) with few reproduction errors and minimum resolution loss. 3) The ability of suitable signal processing to transform video signals to still pictures for printing and to match them with printer characters. A new system has been developed to fulfill the above requirements, having a signal processing circuit and a sublimation-dye type thermal transfer printer. After experimenting with the reproduction of pictures, we are now able to obtain hardcopies with quality close to conventional photographs.

Paper Details

Date Published: 6 July 1989
PDF: 7 pages
Proc. SPIE 1079, Hard Copy Output, (6 July 1989); doi: 10.1117/12.952809
Show Author Affiliations
Haruo Okuda, NHK (Japan Broadcasting Corporation) (United States)
Shin Ohno, NHK (Japan Broadcasting Corporation) (United States)
Makoto Tadenuma, NHK (Japan Broadcasting Corporation) (United States)

Published in SPIE Proceedings Vol. 1079:
Hard Copy Output
Leo Beiser; Stephen L. Corsover; John M. Fleischer; Vsevolod S. Mihajlov; Ken-Ichi Shimazu, Editor(s)

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