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Method for the Suppression of Flicker on Interlaced Color Images

IP.com Disclosure Number: IPCOM000040003D
Original Publication Date: 1987-Sep-01
Included in the Prior Art Database: 2005-Feb-01

Publishing Venue

IBM

Related People

Authors:
Aggarwal, JK Baker, DC Burns, NA [+details]

Abstract

A simple method that reduces flicker on color images by applying a vertical filter to the image is described. The resulting image, when displayed on an interlaced device, will demonstrate considerably less flicker. In addition, since information is effectively transferred from the odd lines of the image to the even lines, every other line of the image can be discarded and the image displayed on a non-interlaced device, without losing the original content of the image. The phosphors on commercially manufactured televisions and many raster displays must be refreshed 60 times per second in order for the human eye to see a steady flicker-free image. The technology prevalent in most displays of this type, however, can only refresh the screen completely in 1/30 of a second.