Real-Time Signal Processing With Two-Dimensional Filters

Richard J. Jones; Joseph R. Burns; David C. Smith

doi:10.1117/12.956760

12 December 1978 Real-Time Signal Processing With Two-Dimensional Filters

Richard J. Jones, Joseph R. Burns, David C. Smith

Proceedings Volume 0156, Modern Utilization of Infrared Technology IV; (1978) https://doi.org/10.1117/12.956760
Event: 22nd Annual Technical Symposium, 1978, San Diego, United States

Abstract

This paper describes the philosophy and implementation of a two-dimensional transversal (finite impulse response) filter. The filter will provide automatic background cancellation and image enhancement in real time at rates in excess of 4 megapixels per second. The paper begins by discussing the philosophy of the filtering process as applied to typical electro-optic imagery together with computer simulated images illustrating its performance. A hardware architecture is described that causes a 15- x 15-pixel scanning window to pass over the image, performing a two dimensional convolution in real time with a weighting function that is programmable under the control of a microprocessor based console. To simplify the hardware design, certain restrictions are imposed on the kernel weighting functionnamely that it must constitute a rectangularly symmetric function.

Citation Download Citation

Richard J. Jones, Joseph R. Burns, and David C. Smith "Real-Time Signal Processing With Two-Dimensional Filters", Proc. SPIE 0156, Modern Utilization of Infrared Technology IV, (12 December 1978); https://doi.org/10.1117/12.956760

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