Sensor system having nonuniformity suppression with image preser

Details Sensor system having nonuniformity suppression with image preser Sensor system having nonuniformity suppression with image preser

1992-12-04

1994-06-21

Harvey, Jack B.

Boots, shoes, and leggings

36457102, G01D 526

Patent

active

053233344

ABSTRACT:
A sensor system includes a sensor (20) having an array (22) of detector elements (24), a movable sensor positioner (32) in which the sensor (20) is mounted, a signal processor (30) that progressively corrects the intensities of the pixels of a sensor output array for detector element nonuniformity, an electronic scene position corrector (40), and a motion controller (36) that provides a movement command (34) to the sensor positioner (32), and transmits the substance of the movement command to the scene position corrector (40). An image array signal is furnished from the sensor (20) to the signal processor (30), while the sensor positioner (32) is controllably moved under command of the motion controller (36). A nonuniformity-compensated output signal (38) of the signal processor (30) is provided to the scene position corrector (40), wherein the position of the image is corrected for the motion of the sensor positioner (32). The resulting sensor output signal (44) has sensor element nonuniformity selectively compensated, but objects in the field of view of the sensor (20) are not suppressed.

REFERENCES:
patent: 4432059 (1984-02-01), Inbar et al.
patent: 4695964 (1987-09-01), Seto et al.
patent: 4764885 (1988-08-01), Greanias et al.
patent: 4975864 (1990-12-01), Sendall et al.
patent: 5175432 (1992-12-01), Reitman et al.

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