Patent ID: 8160381
Filing Date: 2012-04-17
Classification: G06T,H04N

Abstract:
1. A method of processing imager pixel signals to reduce noise in a captured image, the method comprising: receiving a target pixel signal and at least one neighboring pixel signal representing respective pixel signals in the captured image; formulating a dynamic noise signal based at least in part on a value of the target pixel signal and pixel processing system noise; controlling a noise reduction operation using a noise adjustment signal, the noise adjustment signal being formed based on a combination of the dynamic noise signal, the received target pixel signal and the at least one neighboring pixel signal representing respective pixel signals in the captured image; and subtractively combining the target pixel signal and the at least one neighboring pixel signal and forming the noise adjustment signal based on a relationship of the subtractive combination to the dynamic noise signal, wherein the dynamic noise signal is determined in part from information on target pixel noise and pixel processing system noise, the noise reduction operation is provided by aperture correction, and the noise adjustment signal (Y