Patent Document ID: 8982238
Application ID: 13933674
Patent Status: 1

Claim One:
1. A method, comprising: capturing a series of digital images with an image sensor; as the series of digital images are captured, adjusting at least one parameter of the image sensor selected from a group consisting of exposure time and gain to adjust a mean intensity value of the digital images until a target mean intensity value is reached; selecting the target mean intensity value from a plurality of target mean intensity values based on a number of pixels, in each captured digital image, that have an intensity value that falls outside a range of intensity values; calculating mean intensity value of pixels included in each digital image as the digital images are captured; wherein calculating the mean intensity value of the pixels included in a digital image comprises: segmenting the digital image into a plurality of regions, wherein each of the plurality of regions has an associated region weight factor; weighting an intensity value of each pixel a first time with a region weight factor that is associated with a region where a respective pixel is located; weighting an intensity value of each pixel a second time with an intensity weight factor that is selected from a plurality of intensity weight factors based on an unweighted intensity value of a respective pixel; wherein the intensity weight factors are greater for pixels whose intensity values fall outside the range of intensity values than the intensity weight factors for pixels whose intensity values fall within the range of intensity values; and computing a summation of the weighted intensity values of the pixels.