A New 3-D Y/C Separation Algorithm Using an Edge-Based Spatial Filter and a Sub-Temporal Filter

Abstract

A new 3-Dimensional Y/C separation algorithm equipped with a newly designed spatial filter and a temporal filter o p erating on a sub-sampled NTSC signal i s proposed. The 2-D filter proposed is designed t o restore a fine image detail by selecting a proper filter based on the sample correlations, and thuscan reduce remarkablya blurringand visual artifact c o m monly introduced i n the typical 2-DY/Cseparation algorithm especially when the input samples t o the filter are weakly correlated. For the temporal filtering in the system, on the other hand, in order t o shrink the hardware complexity due t o a frame memory, we utilize a subsamplin scheme. Subject t o ful motion detection algorithm using a color difference signal between the temporal and spatial filters, and an interpolation algorithm based o n theedgedetected usingthelowfrequency component of a luminance signal, the subsampled data structure, we deve ' i op a simple b u t use-