Radiant energy – Infrared-to-visible imaging – Including detector array
Patent
1994-09-09
1996-07-02
Willis, Davis L.
Radiant energy
Infrared-to-visible imaging
Including detector array
250349, H04N 533, H04N 718
Patent
active
055324843
ABSTRACT:
Thermal imaging system (10) includes a focal plane array (18) having pixels (20). Signals produced by pixels (20) are addressed by integrated circuit substrate (22) and passed to video processor (24). Video processor (24) includes, among other modules, a detection and substitution module (28) that detects defective pixels (21) and substitutes the signals produced by defective pixels (21). The detection and substitution of signals produced by defective pixels (21) may be performed while viewing the thermal scene (12) or while stimulating pixels (20) with a stimulus. A thermal stimulus may be generated by a thermoelectric cooler (50) thermally coupled to integrated circuit substrate (22) and focal plane array (18). An electrical stimulus to identify defective pixels (21) may also be delivered to pixels (20) of focal plane array (18).
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Beratan Howard R.
Owen Robert A.
Sweetser Kevin N.
DeLeon Ruben C.
Donaldson Richard L.
Hanig Richard
Kesterson James C.
Texas Instruments Incorporated
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