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Proceedings Paper

Signal Processing For Time Delay And Integrating Charge-Coupled Device (TDI-CCD) In The Panoramic Scan Mode
Author(s): Henry Sadowski
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Paper Abstract

A panoramic scanner using Time Delay and Integrating Charge Coupled Device (TDI-CCD) technology has been developed for the U.S. Navy. Real-time signal processing techniques in conjunction with a micro-computer are utilized to accomplish the following: synchronization of ID! charge transport with image scan velocity, electronic on-chip exposure control, signal-to-noise improvement through pixel grouping, removal of dark signature, correction of photo response non-uniformity scene dependent background subtraction and automatic gain control to compensate for scene illumination variations. The system is designed to operate from starlight to daylight scene illumination. Daylight haze penetration is improved by means of low contrast image enhancement which can be achieved through the background subtraction and automatic gain control features. Details of the signal processing and some preliminary imagery are presented.

Paper Details

Date Published: 29 December 1981
PDF: 14 pages
Proc. SPIE 0282, Technical Issues in Focal Plane Development, (29 December 1981); doi: 10.1117/12.931981
Show Author Affiliations
Henry Sadowski, Fairchild Weston Systems Inc. (United States)

Published in SPIE Proceedings Vol. 0282:
Technical Issues in Focal Plane Development
William S. Chan; Esther Krikorian, Editor(s)

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