Television – Camera – system and detail – Combined image signal generator and general image signal...
Patent
1996-09-05
1999-06-01
Garber, Wendy
Television
Camera, system and detail
Combined image signal generator and general image signal...
382274, 382299, H04N 5228, G06K 940
Patent
active
059092440
ABSTRACT:
An imaging system is provided for imaging a scene to produce a sequence of image frames of the scene at a frame rate, R, of at least about 25 image frames per second. The system includes an optical input port, a charge-coupled imaging device, an analog signal processor, and an analog-to-digital processor (A/D). The A/D digitizes the amplified pixel signal to produce a digital image signal formatted as a sequence of image frames each of a plurality of digital pixel values and having a dynamic range of digital pixel values represented by a number of digital bits, B, where B is greater than 8. A digital image processor is provided for processing digital pixel values in the sequence of image frames to produce an output image frame sequence at the frame rate, R, representative of the imaged scene, with a latency of no more than about 1/R and a dynamic range of image frame pixel values represented by a number of digital bits, D, where D is less than B. The output image frame sequence is characterized by noise-limited resolution of at least a minimum number, N.sub.M, of line pairs per millimeter, referred to the charge-coupled imaging device pixel array, in an imaged scene as a function of illuminance of the input light impinging the charge-coupled imaging device pixels.
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patent: 5555324 (1996-09-01), Waxman et al.
patent: 5715330 (1998-02-01), Kawasaka
Waxman, et al.; Color Night Vision: Fusion of Intensified Visible and Thermal IR Imagery; Apr. 17-18, 1995; Proceedings of International Society for Optical Engineering, vol. 2463; pp. 58-64 and Figures 1-5.
Carrick James E.
Fay David A.
Gove Alan N.
Waxman Allen M.
Garber Wendy
Lober Theresa A.
Massachusetts Institute of Technology
Vu Ngoc-Yen
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