ELECTRONIC PICTURE FORMING APPARATUS

摘要

A method and apparatus for improving the quality of an electronic image generated by a charge coupled device (CCD) array (28) that senses scene images through a prism (28A, 28B) or prismatic filter movable into and out of the path of image-containing light rays impinging on the colour filter overlying the CCD array that alternately shifts the scene image between colour filters of the CCD array that absorb particular scene image colours and those that transmit these colours to their associated CCDs while in the case of the prismatic filter absorbing the dominant scene colour generated by the coloured optical filter. Scene image signals generated by a CCD array (18) in this manner are processed such that their spatial relationship with respect to the second scene image is precisely monitored and electronically counter-shifted for subsequently scene image reconstruction. By shifting the scene image between individual CCDs having different colour optical filters, most of the CCDs in the CCD array can generate image signals for two different scene colours or scene colour combinations and thereby improve the image resolving capabilities and/or the colour balance of electronic images generated by the CCD array.