Patent ID: 6633333
Filing Date: 2003-10-14
Classification: H04N

Abstract:
A camera comprising a sensor, said sensor comprising a series of pixels for receiving radiation forming an image of a scene, filter means positioned in the path of radiation incident on the sensor, said filter means being arranged to pass different spectral regions in different spatial regions, so that different spatial regions of the sensor are exposed to radiation of different spectral regions, decoding means for producing separate outputs from the sensor corresponding to the different spectral regions, memory means for storing sensor output signals and a circuit for using the outputs corresponding to the different spectral regions to remove visibility of the different spectral regions from the sensor output, to permit high resolution to be attained, in which said decoding means is further arranged to use stored signals derived from the sensor output corresponding to exposure of the sensor through the filter means by radiation of referenced spectral regions, said stored signals being representative of the position of the reference spectral regions with respect to the position of said pixels.