METHOD FOR DETERMINING THE IMBALANCE OF THE TRANSMISSION BEHAVIOUR OF INDIVIDUAL OR ALL PIXELS OF AN IMAGE CAPTURING SYSTEM

摘要

The invention relates to a method for determining the imbalance of the transmission behaviour of individual or all pixels (32) of an image capturing system (12), wherein the image capturing system (12) has a plurality of pixel columns and a plurality of pixel rows formed by pixels (32), and/or for determining the radiance distribution of the radiation source using the following steps: (a) capturing a radiation source (10) with sufficiently temporally constant radiance using the image capturing system (12), such that a primary image is obtained; (b) capturing the radiation source (10) with column-offsetting, such that a column-offset image is obtained; (c) capturing the radiation source (10) with row-offsetting, such that a row-offset image is obtained; and (d) calculating a correction factor matrix from the primary image, the row-offset image and the column-offset image, containing the correction parameters for correcting measured values of the pixels (32).