Method and apparatus for multi-dimensional signal processing usi

Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry

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358260, 364726, 382 43, 382 56, H04N 712, H04N 140, G06F 734, G06F 15332

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active

047033495

ABSTRACT:
A method and apparatus for representing a multi-dimensional, finite extent, information containing signal in a locally sensitive, frequency domain representation employs transforming the digital signal using a Short-Space Fourier transform having overlapping basis functions. The theory and application of the Short-Space Fourier transform provide, in one particular application of picture image transmission, an improved image quality over previously employed block transform coding methods and apparatus. A particularly preferred window function for use in connection with image signal processing is the multi-dimensional sinc function which has the unique advantage of a rectangular bandpass signal in the frequency domain.

REFERENCES:
patent: 4189748 (1980-02-01), Reis
patent: 4196448 (1980-04-01), Whitehouse et al.
patent: 4245248 (1981-01-01), Netravali et al.
patent: 4281344 (1981-07-01), Mounts et al.
patent: 4302775 (1981-11-01), Widergren et al.
patent: 4394774 (1983-07-01), Widergren et al.
patent: 4447886 (1984-05-01), Meeker
patent: 4504860 (1985-03-01), Nicol et al.
patent: 4606004 (1986-08-01), Crawford et al.
Jain et al., "Displacement Measurement and Its Application in Interframe Image Coding," IEEE Transactions on Communications, vol. COM-29, No. 12, Dec. 1981, pp. 1799-1808.
Koga et al., "Motion-Compensated Interframe Coding for Video Conferencing," CH1679-0/81/0000-0312, 1981 IEEE, G5.3.1-G5.3.5.
Ericsson, "Motion-Compensation Hybrid Coding at 50 Kb/s," CH2118-8/85/0000-0367, 1985 IEEE, 10.8.1-10.8.8, pp. 367-370.
Reeve III et al., "Reduction of Blocking Effect in Image Coding," CH1841-6/83/0000-1212, ICASSP 83, Boston, pp. 1212-1215, (1983).
GTE Advertisement, "The Uses of Silence," Technology Review, Aug./Sep., 1984, pp. 64-65.
Hinman et al., "Short-Space Fourier Transform Image Processing," Massachusetts Institute of Technology, Research Laboratory of Electronics, Cambridge, Mass.

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