Patent ID: 7436452
Filing Date: 2008-10-14
Classification: H04N

Abstract:
1. A method for reducing residual signal generated during a first image exposure and released during the image exposure and readout of a second image, the method comprising the steps of: (a) flushing an image sensor using a predefined fixed flush time; (b) after flushing with the fixed flush time, capturing the first image on an the image sensor having a known exposure that includes exposure time and a peak light intensity; (c) after the first image is captured, reading out the first image; (d) estimating a flush time for the second image based on the known exposure in capturing the first image; (e) after the first image is read out, flushing the image sensor using the estimated flush time for the second image; and (f) capturing the second image, wherein the estimated flush time for the second image substantially reduces the residual signal in the second image.