Spectral Extrapolation With Spatial Constraints

Guner S. Robinson; James J. Reis

doi:10.1117/12.956671

7 December 1978 Spectral Extrapolation With Spatial Constraints

Guner S. Robinson, James J. Reis

Proceedings Volume 0149, Digital Image Processing II; (1978) https://doi.org/10.1117/12.956671
Event: 22nd Annual Technical Symposium, 1978, San Diego, United States

Abstract

A new technique is described for improving transform encoded signal reconstruction by extrapolating missing coefficients in the transform domain. The extrapolation algorithm is very simple and it can easily be incorporated into one-and two-dimensional transform hardware. Examples of signal reconstruction are included for one- and two-dimensional signals. The extrapolation algorithm is especially simple in the case of the Haar transform, due to the global-local properties of the Haar coefficients. The generalized formula is derived for both Haar and Walsh-Hadamard transforms. The incorporation of the spectral extrapolation into a real time bandwidth compression system is also described.

Citation Download Citation

Guner S. Robinson and James J. Reis "Spectral Extrapolation With Spatial Constraints", Proc. SPIE 0149, Digital Image Processing II, (7 December 1978); https://doi.org/10.1117/12.956671

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