Median-based dark level acquisition for a frame rate clamp
First Claim
Patent Images
1. A circuit for determining median dark level of an image sensor, the circuit comprising:
- (a) a first circuit for comparing a current pixel value and a cumulative median;
(b) a storage element for storing the cumulative median level; and
(c) 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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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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Citations
10 Claims
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1. A circuit for determining median dark level of an image sensor, the circuit comprising:
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(a) a first circuit for comparing a current pixel value and a cumulative median;
(b) a storage element for storing the cumulative median level; and
(c) 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification