Development of Noise Reduction Scheme for HDTV Video CODEC

Abstract

We are developing a noise reduction scheme as a pre-processing filter for the HDTV video CODEC. HDTV noise comes mainly from the contour emphasis process of the HDTV camera, which deteriorates the compression efficiency of interframe coding. Conventional simple interframe noise reduction often generates motion blur distortion.
In this paper we propose a noise reduction scheme with less motion blur distortion which is controlled by the interframe signals expanded spatially and temporally. We show that our scheme produces inproved picture quality and coding efficiency.