2-D real-time semi-systolic filter apparatus for HDTV

Details 2-D real-time semi-systolic filter apparatus for HDTV 2-D real-time semi-systolic filter apparatus for HDTV

1992-05-28

1993-09-14

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358166, 345 29, H04N 514

Patent

active

052454339

ABSTRACT:
An apparatus for 2-D filtering a raster scanned image at high real-time rates such as those required for HDTV, with either IIR of FIR structures, without the need for expensive digital systems that require A/D and D/A converters. The wide variety of 2-D signal processing techniques (e.g. high pass filtering) that are based on a 2-D transfer function of general order can be implemented. The use of a semi-systolic structure allows a number of advantages for VLSI implementation such as modularity, regularity and high parallelism. Use of analog components in the processing elements of the apparatus makes high-speed operation for real-time applications in HDTV possible. The apparatus is applicable to TV imaging in general including such areas as advanced television systems, industrial and biomedical video systems.

REFERENCES:
patent: 5122788 (1992-06-01), Sid-Ahmed et al.
M. J. J. C. Annegarn et al., "Digital Signal Processing in Television Receivers", Philips Tech. Rev. 42, No. 6/7, 183-200, Apr. 1986.
A. N. Venetsanopoulos et al., "High-Speed Architectures for Digital Image Processing", IEEE Trans. on Circuits and Systems, vol. CAS-34, No. 8, 887-895, Aug. 1987.
J. H. Arbeiter et al., "A Two-Dimensional Real-Time Video Pyramid Processor", RCA Review, vol. 47, 3-31, Mar. 1986.
M. A. Sid-Ahmed, "Realization of Z-D IIR Filters Using Sample-and-Hold Circuitry", 1991 IEEE International Symposium on circuits and Systems, vol. 5, Jun. 1991, pp. 2467-2470.

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