Patent ID: 7400352

Claim:
A method of estimating electrical crosstalk in an R×S array of imaging cells, the method comprising the steps of: acquiring electrical information from a plurality of cells in the R×S array of imaging cells to form a plurality of detected electrical values, wherein acquiring electrical information from the plurality of cells in the R×S array comprises the steps of: placing a light shielding cover over the R×S array of imaging cells, the cover exposing an M×N array of imaging cells, the M×N array being smaller than the R×S array; exposing the M×N array to uniform light energy from a light source; collecting light energy with the M×N array of imaging cells for an integration period; and detecting electrical values for imaging cells within the M×N array that represent an amount of light energy that was collected during the integration period, and electrical values for imaging cells within an H×I array of imaging cells that represent the amount of cross talk electrons that were collected during the integration period, the M×N array being centered within the H×I array, the H×I array being smaller than the R×S array; extracting a plurality of crosstalk coefficients from the detected electrical values; and generating an estimated color spectral response in response to a color filter spectral response, a monochrome spectral response, and the crosstalk coefficients.