A conceptual real-time structure for driving and image enhancement of a Cooled Infrared Focal Plan Array with 320×240 detectors will be discussed. It is the case that a mechanism for Non-Uniformity Correction between the sensitive elements needs a structure for compensation of gradual drift in the detectors' output by update the correction factors in a regular way. A feasible method, Least-Mean-Square, under a compact hardware is introduced. Inherently, the intended detector has not a suitable timing for sending out for standard display equipments, so it is essential to have hardware for frame-to-frame processing. Applying a capability of the sophisticated FPGAs, the contrast enhancement based on Bi-Histogram Equalization which preserves the brightness of infrared image effectively is described.

Date Published: 8 January 2008
PDF: 8 pages
Proc. SPIE 6835, Infrared Materials, Devices, and Applications, 68352L (8 January 2008); doi: 10.1117/12.753801

Published in SPIE Proceedings Vol. 6835:
Infrared Materials, Devices, and Applications
Yi Cai; Haimei Gong; Jean-Pierre Chatard, Editor(s)