Patent ID: 8624997
Filing Date: 2014-01-07
Classification: H01L,H04N

Abstract:
1. A method for down-sampling an image produced by an image sensor including an array of light sensitive elements, comprising: filtering light incident on the image sensor such that the image sensor receives light having a repeating pattern characterized by: light sensitive elements in at least two successive columns alternately receiving light having a first color and a second color, and light sensitive elements in common rows of the at least two successive columns alternately receiving light having the first color and the second color, and light sensitive elements in at least two additional successive columns alternately receive light having a third and a fourth color, and light sensitive elements in common rows of the at least two additional successive columns alternately receiving light having the third color and the fourth color; sampling output values of the light sensitive elements; combining output values of pairs of light sensitive elements receiving light of a common color and from successive rows of the array to generate a down-sampled image, the step of combining including, for each pair of light sensitive elements: configuring the light sensitive elements such that light sensitive elements of successive rows alternately have long and short exposure times, wherein the down-sampled image has increased dynamic range.