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Proceedings Paper

Real-time design of N-dimensional digital filters for image processing
Author(s): Vladimir N. Drynkin
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Paper Abstract

The main body of remote sensing data is obtained with the aid of optoelectronic and photographic devices. This data is usually referred to as the video information since it may be presented as images of terrestrial surface on a satellite track or an airway. This is the reason of increasing interest of specialists in the field of the remote sensing devices design to the methods of synthesis of optimal data processing hardware. The design of effective systems of the remote sensing data formation and transmission are impossible without using the state-of- the-art synthesis methods of digital image processing systems, taking account of a message source and their recipient characteristic properties. It is possible to take account of these characteristic properties only on the basis of optimal N-dimensional digital filtering. From this point of view the N-dimensional filter, used for video images filtering, becomes optimal only in the case of coincidence of the pass band region of its spatial frequency response (SFR) with the isoenergetic surface of the image spectrum with allowance for eyesight characteristics. In the light of the above the problem of N-dimensional digital filters design with the given pass band region configuration becomes actual. Incidentally the practicable interest presents first of all the methods, allowing with relatively low hardware expenses to design structures, from one part operating in the real time, and from the other -- approaching best of all the given characteristics. In this case it is necessary to ensure stability during their operation. In the following we shall present the results of the synthesis method development of N-dimensional digital filters with the guaranteed stability and the given pass band region configuration, realizing the image processing in the real time.

Paper Details

Date Published: 1 December 1995
PDF: 10 pages
Proc. SPIE 2646, Digital Photogrammetry and Remote Sensing '95, (1 December 1995); doi: 10.1117/12.227872
Show Author Affiliations
Vladimir N. Drynkin, State Research Institute of Aviation Systems/GosNIIAS (Russia)

Published in SPIE Proceedings Vol. 2646:
Digital Photogrammetry and Remote Sensing '95
Eugeny A. Fedosov, Editor(s)

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