Patent ID: 6094226
Filing Date: 2000-07-25
Classification: G06T,G09G,H04N,Y10S

Abstract:
A flicker reduction system for reducing flicker in non-interlaced images converted to interlaced images, comprising:a flicker reduction filter receiving image data representative of pixel values within a single image, said flicker reduction filter having at least two selectable filters with each filter providing a different frequency response for said flicker reduction filter; andfilter selection circuitry receiving image data representative of pixel values from at least two lines within said single image and having a filter selection signal as an output, said filter selection signal being dependent upon an analysis of pixel values from at least two lines of said single image and being applied to said flicker reduction filter to adaptively select from among said at least two selectable filters to process said image data within said single image;wherein said filter selection circuitry utilizes horizontal and vertical pixel conditions within a two-dimensional window around a currently processed pixel to provide a two-dimensional adaptive filter selection.