Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1992-02-20
1994-07-12
Coles, Sr., Edward L.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358443, 358447, 358463, H04N 140
Patent
active
053293819
ABSTRACT:
An automatic engraving system scans an image such as a photograph, samples and resizes the image to provide a masterized gray scale data base of the image. The image is then logarithmically corrected and noise is removed from the image using the Outlier noise reduction method. The Outlier noise reduced image is then smoothed and edge detection methods are used to provide an output that represents the initial image filtered smoothed and edge detected. The edge detection image is then converted to a bilevel image using thresholding. The bilevel image is then converted to a vector form and speckle noise removed. The speckle noise removed image is then converted to a vector engraving file which is sent to an engraving machine. The engraving process then can batch create one or more than one image or multiple numbers of a single image. The output can be printed rather than engraved to produce the artistic effect of traditional engraving on paper.
REFERENCES:
patent: 4013831 (1971-03-01), Dolves et al.
patent: 4052739 (1977-10-01), Wada et al.
patent: 4944826 (1990-07-01), Zollman et al.
patent: 5088864 (1992-02-01), Yanagida
Advertisement Sublimination, The Next Generation, Nova Chrome, The Engravers Journal, May/Jun. 1991, p. 54.
Digital Image Processing-Operational Breakdown, Gregory A. Baxes, Cascade Press, pp. 8-11, (1984).
Digital Image Processing-Second Edition, William K. Pratt, John Wiley & Sons, Inc. 1991, pp. 339-343.
Digital Image Processing-Second Edition, William K. Pratt, John Wiley & Sons, Inc. 1991, pp. 291-295.
"Theory of edge detection", D. Marr and E. Hildreth, Procedings Royal Society of London, 1980, pp. 187-217.
"Edge detection in images using Marr-Hildreth filtering techniques", T. G. Smith, W. B. Marks, W. H. Sheriff Jr., and E. A. Neale, Journal of Neuroscience Methods, 26 (1988), pp. 75-82.
"Fast Algorithms for Low-Level Vision", Rachid Deriche, IEEE PAMI, vol. 12, No. 1, Jan. 1990, pp. 78-87.
"Optimal Edge Detectors for Ramp Edges", Maria Petrou and Joseph Kittler, IEEE PAMI, vol. 13, No. 5, May 1991, pp. 483-491.
National Conference Rapid Prototyping, Sponsered by the Rapid Prototype Development Laboratory Center for Advanced Manufacturing, University of Dayton, Ohio Jun. 4-Jun. 5 1990.
Coles Sr. Edward L.
Grant II Jerome
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