Patent ID: 7746393
Filing Date: 2010-06-29
Classification: G06T,G09G,H01L,H04N

Abstract:
1. An image signal processor for processing a plurality of image signals associated with a plurality of screens, comprising: an image memory circuit for storing a signal corresponding to a target pixel and signals corresponding to a plurality of peripheral pixels adjacent to the target pixel; a deficiency candidate detection circuit for comparing the signal corresponding to the target pixel with a threshold value calculated from the signals corresponding to the plurality of peripheral pixels to detect a deficient pixel candidate and for generating a comparison result; a deficiency determining circuit for determining a deficient pixel according to a continuity of the deficient pixel candidate based on a plurality of comparison results produced by the deficiency candidate detection circuit over the plurality of screens; a position memory circuit for storing deficiency information for a position of the deficient pixel; and a deficiency correction circuit for correcting the signal corresponding to the target pixel, which is deficient, in accordance with the deficiency information; wherein the position memory circuit comprises: