Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1981-06-01
1983-11-08
Martin, John C.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358152, 358263, 358133, H04N 712
Patent
active
044145802
ABSTRACT:
A method and apparatus for the transmission of two-tone pictures progressively in several stages. Progressive transmission enables a viewer to receive and utilize pictures in a small fraction of the normal transmission time. In a first stage, information representing groups of picture elements of preselected lines of the scanned picture is transmitted which allows a coarse version of the picture to be reproduced at a receiver. During the subsequent stages the horizontal resolution of the previously transmitted scan lines is improved and additional scan lines are transmitted in a specific order until the received picture is an identical copy of the original picture. The progressive picture information is efficiently transmitted in one of several line-by-line codes resulting in a total transmission time not significantly longer than the time for a nonprogressive transmission.
REFERENCES:
patent: 3116436 (1963-12-01), Sweeney
patent: 4193092 (1980-03-01), Stoffel
patent: 4222076 (1980-09-01), Knowlton
patent: 4254438 (1981-03-01), Yamazaki et al.
O. Johnsen et al., "An Extension of the CCITT Facsimile Codes for Dither Pictures" The Bell System Technical Journal, vol. 60, No. 3, 3-81, pp. 391-404.
Murat Kunt, "Source Coding of X-Ray Pictures" IEEE Trans. on Biomedical Engr., vol. BME-25, No. 2, Mar. 1978, pp. 121-138.
K. Knowlton, "Progressive Transmission of Gray-Scale and Binary Pictures by Simple, Efficient and Lossless Encoding Schemes" Proceedings of IEEE, vol. 68, No. 7, Jul. 7, 1980, pp. 885-889.
K. R. Sloan, Jr. et al., "Progressive Refinement of Raster Images" IEEE Trans. on Computers, vol. C-28, Nov. 1979, pp. 871-874.
A. J. Frank et al., "Progressive Image Transmission Using a Growth-Geometry Coding" Proceeding of IEEE, vol. 68, No. 7, Jul. 1980, pp. 897-909.
R. Hunter et al., "Int'l Digital Facsimile Coding Standards" Proceeding IEEE, vol. 68, No. 7, Jul. 1980, pp. 854-867.
Johnsen Ottar
Netravali Arun N.
Bell Telephone Laboratories Incorporated
Caccuro John A.
Coles Edward L.
Martin John C.
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