Title :
High quality digital PAL decoding for single frames
Author_Institution :
Dept. of Electron. Syst. Eng., Essex Univ., Colchester
fDate :
11/12/1998 12:00:00 AM
Abstract :
A software-based method for obtaining high quality colour single frames from a PAL signal is described. A two-dimensional finite impulse response (FIR) digital filter extracts the subcarrier from the composite source. Chrominance demodulation is by orthogonal free-running subcarriers followed by vector rotation of the U and V components by reference to the demodulated burst vector. The system is also applicable to NTSC
Keywords :
FIR filters; decoding; demodulation; image coding; image colour analysis; two-dimensional digital filters; NTSC signal; PAL signal; chrominance demodulation; colour single frame; decoding; demodulated burst vector; orthogonal free-running subcarrier; software; two-dimensional FIR digital filter; vector rotation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19981515
