Patent ID: 7149008

Claim:
A method, comprising: scanning an object using a stagger sensor; retrieving reference digital data; and calculating a computed pixel value using at least in part the retrieved reference digital data and data captured by the scanning operation, wherein scanning an object using a stagger sensor comprises scanning the object using a stagger sensor including a plurality of scanning modules, the plurality of scanning modules including a plurality of light-sensing cells, and wherein calculating a computed pixel value further includes: if a first light-sensing cell of a first sensing module includes a reference digital data and a second light-sensing cell of a second sensing module and the first light-sensing cell having some overlap in a forward scanning direction, digital data of a pixel in the region in the second light-sensing cell having substantially no overlap with the first light-sensing cell is obtained substantially in accordance with the following relationship: A(x)=F(X)*N−A(X−1)−A(X−2)− . . . −A(0)*(N−X) where X comprises a desired pixel, N comprises a number of pixels included in a light-sensing cell, A(X) comprises digital data corresponding to an X th pixel, A(1) comprises digital data of the first pixel, and F(X) comprises digital data captured during the scanning operation including pixels captured by the light-sensing cell.