1. A medical sensing system comprising: a processing engine in communication with a medical imaging device, the processing engine operable to: receive a first signal at a first point corresponding to a pixel; receive a second signal at a second point corresponding to the pixel; determine a weighted average of the first signal and the second signal; determine a first probability based on the first signal and the weighted average; determine a second probability based on the second signal and the weighted average; and select one of the first signal or the second signal as an imaging value of the pixel based on the first probability and the second probability; and provide the selected imaging value of the pixel for forming an image.