Title :
Line rate upconversion in IDTV applications
Author :
Pohjala, Pasi ; Karlsson, Matti
Author_Institution :
Nokia Consumer Electron., Tampere, Finland
fDate :
8/1/1991 12:00:00 AM
Abstract :
A median-based motion adaptive algorithm has been developed for the interpolation of 625 extra lines between 625 original lines in a normal-definition PAL receiver. Furthermore, a motion detection algorithm suitable for cost-efficient implementation in IDTV (improved-definition television) receivers has been developed. A motion detector is required to determine whether the pixel to be interpolated is moving. It was concluded that the motion adaptive weighted median filtering offers better picture quality than other methods studied, while allowing cost-efficient production
Keywords :
adaptive filters; colour television receivers; filtering and prediction theory; high definition television; interpolation; picture processing; IDTV receivers; improved-definition television; line rate upconversion; median-based motion adaptive algorithm; motion adaptive weighted median filtering; normal-definition PAL receiver; picture quality; Adaptive algorithm; Consumer electronics; Digital signal processing; Displays; HDTV; Interpolation; Motion detection; Research and development; Signal processing algorithms; TV receivers;
Journal_Title :
Consumer Electronics, IEEE Transactions on
