Signal Processing For Time Delay And Integrating Charge-Coupled Device (TDI-CCD) In The Panoramic Scan Mode

Henry Sadowski

doi:10.1117/12.931981

29 December 1981 Signal Processing For Time Delay And Integrating Charge-Coupled Device (TDI-CCD) In The Panoramic Scan Mode

Henry Sadowski

Author Affiliations +

Proceedings Volume 0282, Technical Issues in Focal Plane Development; (1981) https://doi.org/10.1117/12.931981
Event: 1981 Technical Symposium East, 1981, Washington, D.C., United States

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.

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Henry Sadowski "Signal Processing For Time Delay And Integrating Charge-Coupled Device (TDI-CCD) In The Panoramic Scan Mode", Proc. SPIE 0282, Technical Issues in Focal Plane Development, (29 December 1981); https://doi.org/10.1117/12.931981

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