Plenoptic camera comprising a shuffled color filter array

Abstract

A plenoptic camera is proposed having a color filter array positioned on an image sensor with an array of pixels, the color filter array having a first filter with a set of unit elements, each unit element covering M×M pixels of the image sensor, with M an integer such that M≧2. The plenoptic camera further includes a set of micro-lens, each micro-lens delivering a micro-lens image on the image sensor with a diameter equal to p=k×M, with k being an integer greater than or equal to two. The first filter is remarkable in that the set of unit elements comprises an initialization unit element being associated with a matrix ( c m , n ) 0 ≤ m < M 0 ≤ n < M indicating a filter repartition (or pattern), where each coefficient cm,n is associated with a filter value, and in that the other unit elements are associated with matrixes with coefficients set to c(x+i)modM,(y+j)modM, for corresponding pixel (x,y,i,j) on the image sensor, where indexes x, y relate to indexation of a pixel in the image sensor, and indexes i,j relate to indexation of a micro-lens in the set of micro-lens.

Dependencies are inferred from the claim text.