Image pickup system for noise estimating and noise reduction

Details Image pickup system for noise estimating and noise reduction Image pickup system for noise estimating and noise reduction

2003-07-30

2009-08-04

Henn, Timothy J (Department: 2622)

Television

Camera, system and detail

Combined image signal generator and general image signal...

C382S270000

Reexamination Certificate

active

07570287

ABSTRACT:
In the image pickup system of the present invention, factors that have an effect on noise such as the signal level, temperature of the CCD during shooting, exposure time, gain and the like are dynamically acquired, the noise level of the CCD is estimated, for example, for each pixel by a noise estimating unit, and signal components equal to or less than this noise level in the video signals are suppressed by a noise reducing unit, so that a high-quality image that is substantially free of noise is obtained while preserving the edges of the image and the like.

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