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Proceedings Paper

Spatial Filtering Using 3 X 3 Kernel Convolutions
Author(s): J. T. Carlo; J. E. Hall
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Paper Abstract

The equivalence of 3 x 3 linear discrete convolution filtering to spatial frequency domain multiplication is reviewed in this paper. DPCM (Differential Pulse Code Modulation) is simply a low pass filter in the frequency domain. More complex 3 x 3 filters allow the choice of a band stop locus in the frequency domain in order to reduce unwanted spatial frequency components. This real time spatial filtering is readily implemented using a multitapped CCD delay line coefficients on-chip with a CCD imager.

Paper Details

Date Published: 20 August 1979
PDF: 8 pages
Proc. SPIE 0178, Smart Sensors, (20 August 1979); doi: 10.1117/12.957276
Show Author Affiliations
J. T. Carlo, Texas Instruments Incorporated (United States)
J. E. Hall, Texas Instruments Incorporated (United States)

Published in SPIE Proceedings Vol. 0178:
Smart Sensors
David F. Barbe, Editor(s)

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