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1. (WO2001033861) MPEG ENCODING METHOD FOR LOGO INSERTION

Pub. No.:    WO/2001/033861    International Application No.:    PCT/GB2000/004262
Publication Date: Fri May 11 01:59:59 CEST 2001 International Filing Date: Tue Nov 07 00:59:59 CET 2000
IPC: H04N 7/26
Applicants: SNELL & WILCOX LIMITED
KNEE, Micheal, James
Inventors: KNEE, Micheal, James
Title: MPEG ENCODING METHOD FOR LOGO INSERTION
Abstract:
When MPEG encoding a video signal, a set of macroblocks is defined to form the site for downstream insertion of a logo. The encoder forces the coding of the set of macroblocks into an intra-coding mode. It also inhibits the use, in coding of any other macroblock, of a motion vector directed to any of the set of macroblocks. The aggregate bit rate over the set of macroblocks is controlled so as to simplify logo insertion or to maintain picture quality in the logo region.