Median-based dark level acquisition for a frame rate clamp

Details Median-based dark level acquisition for a frame rate clamp Median-based dark level acquisition for a frame rate clamp

2005-06-21

2005-06-21

Garber, Wendy R. (Department: 2612)

Television

Camera, system and detail

Combined image signal generator and general image signal...

Reexamination Certificate

active

06909460

ABSTRACT:
A circuit for determining the median dark level of an image sensor, the circuit comprises a first circuit for comparing a current pixel value and a cumulative median; a storage element for storing the cumulative median level; and a second circuit which utilizes the first circuit for adjusting the cumulative median based on the current pixel level input for updating the cumulative median dark level.

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