Transform coding using charge-coupled devices

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Transform coding using charge-coupled devices

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© Controller, HMSO
Published

A relatively simple discrete-time analogue technique is described by which short sections of waveforms can be reversibly transformed into a different domain by using a continuous, rather than block, mode of working. The chosen transform is set up as a matrix of resistors whose conductances correspond with the Fourier, Walsh, slant etc. basis vectors required.

Inspec keywords: signal processing; charge-coupled device circuits; encoding

Other keywords: transform coding; discrete time analogue technique; charge coupled devices

Subjects: Signal processing and detection; Codes; Other field effect integrated circuits

References

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      • N. Ahmed , K.R. Rao . (1975) , Orthogonal transforms for digital signal processing.
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      • Buss, D.D., Veenkant, R.L., Broderson, R.W., Hewes, C.R.: `Comparison between the CCD CZT and the digital FFT', Proceedings of CCD 75, October 1975, San Diego, p. 267–281.
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      • Otto, O.W.: `The chirp transform signal processor', Proceedings of IEEE ultrasonics symposium, 1976, Annapolis, p. 365–370.
    4. 4)
      • Means, R.W., Whitehouse, H.J., Speiser, J.M.: `Real time TV image redundancy reduction using transform techniques', Proceeding of NATO Advanced Study Institute, 1974, Darlington, p. 83–98, (Noordhoff 1975).
    5. 5)
      • H.C. Andrews . (1970) , Computer techniques in image processing.
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