The Role Of Signal Generating Image Tubes In Photo-Optical Sensor Systems

W. E. Woehl

doi:10.1117/12.970954

26 September 1965 The Role Of Signal Generating Image Tubes In Photo-Optical Sensor Systems

W. E. Woehl

Proceedings Volume 0003, Electronic Imaging Techniques; (1965) https://doi.org/10.1117/12.970954
Event: Electronic Imaging Techniques, 1965, Los Angeles, United States

Abstract

The use of signal-generating image tubes (image orthicons) provides a number of features which are important for applications in tracking and surveillance sensor systems. The most significant features are: high quantum efficiency and internal noise-free signal amplification; scanning in the image orthicon of the transfer charge pattern generated by the optical image, which provides a means for time-sequencing of the spatial intensity information contained in the image; electronic image enhancement; digital image transfer and noise elimi-nation; real-time photometric and spectro-radiometric information retrieval; digital pointing-error information for automatic-tracking feed-back loops. The quantity which describes the performance of sensor systems is the modulation transfer function; in image tube systems the transferred spatial modulation of intensity amplitudes can be easily obtained from the video display on an oscilloscope.

Citation Download Citation

W. E. Woehl "The Role Of Signal Generating Image Tubes In Photo-Optical Sensor Systems", Proc. SPIE 0003, Electronic Imaging Techniques, (26 September 1965); https://doi.org/10.1117/12.970954

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KEYWORDS

Sensors

Image sensors

Video

Interference (communication)

Cameras

Image enhancement

Modulation transfer functions

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