Image processing system and method using modulated detector outp

Details Image processing system and method using modulated detector outp Image processing system and method using modulated detector outp

1986-08-28

1989-02-28

Gruber, Felix D.

Boots, shoes, and leggings

364581, 364604, 364713, 382 42, G06F 1566, G06F 1570, G06F 15336

Patent

active

048091944

ABSTRACT:
An image processing system 10 includes an array (12) of detectors 14, each of which is designed to produce a current proportional to incident radiation. This system provides image processing at a viable sampling rate even for very large arrays and permits very efficient determination of single element detections.
The modulation functions supplied from a weighted summer (18). The weighted summer applies an invertible matrix of weights to a series of orthonormal Walsh functions defined over a predetermined sampling interval, the Walsh functions being generated by a function generator (16).
The modulated outputs of the array are combined by a summer (20) and distributed among parallel channels by a divider (22). Correlators (24) correlate the signal in each channel with a respective one of the original Walsh functions. The correlated outputs are digitized by analog-to-digital converters for transmission and processing by a digital processor (28). The processor can at least partially reconstruct the detected spatial distribution for output to a display (30).

REFERENCES:
patent: 3775602 (1973-11-01), Alexandridis et al.
patent: 4009380 (1977-02-01), Bocker et al.
patent: 4365310 (1982-12-01), Green
patent: 4542367 (1985-09-01), Shreve
patent: 4590608 (1986-05-01), Chen et al.

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