Imaging system and method for increasing the dynamic range of an

Details Imaging system and method for increasing the dynamic range of an Imaging system and method for increasing the dynamic range of an

1996-09-10

1999-04-06

Garber, Wendy

Television

Camera, system and detail

Solid-state image sensor

348304, H04N 314

Patent

active

058925414

ABSTRACT:
The dynamic range of an imaging system that utilizes an array of active pixel sensor cells is substantially increased by reading each cell in the array multiple times during each integration period. Each time a cell is read, the number of photons collected by the cell is saved and the cell is reset if the cell would normally saturate by the end of the integration period. At the end of the integration period, the number of photons collected by each cell is defined by the sum of the values collected during the integration period.

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Dickinson, A. et al., "TP 13.5: A 256x256 CMOS Active Pixel Image Sensor with Motion Detection," 1995 IEEE/International Solid-State Circuits Conference, pp. 226-227.
Agwani, S. et al., "A High Speed, Dual Output Channel, Stage Selectable, TDI CCD Image Sensor for High Resolution Applications," pp. 124-133, SPIE, vol. 2415, Sep., 1995.
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