Facsimile and static presentation processing – Facsimile – Auxiliary signal
Patent
1990-10-09
1997-09-09
Rogers, Scott A.
Facsimile and static presentation processing
Facsimile
Auxiliary signal
358426, 382173, 382232, 382242, H04N 1415
Patent
active
056662122
ABSTRACT:
A method of coding digital image data of an original image for transmission and reproduction. The original image is subdivided into partial image regions whose shapes are adapted to local image structures. For each partial image region, a set of two-dimensional, lineraly independent basis functions is provided. The areal expanse of the basis functions approximately corresponds to the size of a rectangle circumscribing the partial image region to be coded and the raster of the sampled values of the basis functions corresponds to the pixel raster of the original image. The sampled values of the basis functions disposed within the area defined by the partial image region are orthogonalized in order to obtain a set of new, orthogonal basis functions, with the set including as many orthogonal basis functions as there are pixels within the partial image region. Coefficients of the orthogonalized basis functions describing the partial image region are then calculated. The coefficients correspond to the rectangular image regions in the partial image region and represent the gray scale values of the partial image region and thus an approximation of the original image. In a preferred embodiment, the contour of the partial image region is coded and transmitted along with the coefficients to a receiving location, where the orthogonal basis functions are generated based on the contour and the image is reproduced with the orthogonal basis functions and the coefficients.
REFERENCES:
patent: 4797742 (1989-01-01), Sugiyama et al.
patent: 4805017 (1989-02-01), Kaneko et al.
Michael Gilge, "Coding of Arbitrarily Shaped Image Segments using Moment Theory," Proceedings of EUSIPO-88 Fourth European Signal Processing Conference (Sep., 1988), pp. 855-858.
Murat Kunt et al, "Recent Results in High-Compression Image Coding," IEEE Transactions on Circuits and Systems, CAS-34 (1987), Nov., No. 11, pp. 1306-1336.
Pabel, "Transformationen in der digitalen Signalverarbeitung Teil 1," Nachrichtentechnische Zeitschrift NTZ, 37 (May, 1984) No. 5, p. 290 et seq.
N.I. Achieser, Vorlesungen Uber Approximationstheorie, 2nd Edition, 1967, published by Akademie Verlag, pp. 24-26.
M.J. Biggar, et al., "Segmented-Image Coding: Performance Comparison with the Discrete Cosine Transform", IEEE Proceedings, vol. 135, Pt. F., No. 2, Apr. 1988, pp. 121-132.
I.N. Bronstein, et al., "Taschenbuch der Mathematik", published by Verlag Herri Deutsch, 23rd Edition, pp. 735-737.
Ernest L. Hall, "Computer Image Processing and Recognition", Academic Press, New, NY 1979, 413-420.
Alston S. Householder, "Principles of Numerical Analysis", McGraw-Hill Book Company, Inc., NY, NY, 1953, pp. 72-78.
Anil K. Jain, "Fundamentals of Digital Image Processing", Prentice Hall, Englewood Cliffs, NJ, pp. 362-374.
William K. Pratt, "Digital Image Processing", John Wiley & Sons, NY, NY, pp. 232-278.
"ESPRIT '86 Results and Achievements", Edited by Directorate General XIII Telecommunications, Information, Industries & Innovation, Elsevier Science Publishers B.V., 1987 (North Holland), pp. 413-422.
Joint Photographic Experts Group ISO/IEC JTC1/SC2/WG8 CCITT SGVIII, Aug. 31, 1989.
M.J. Biggar et al, "Segmented image coding: performance comparison with the discrete cosine transform," IEEE Proceedings, vol. 135, Pt. F, No. 2 (Apr., 1988) pp. 121-132.
ANT Nachrichtentechnik GmbH
Lee Thomas D.
Rogers Scott A.
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