Patent ID: 6658057
Filing Date: 2003-12-02
Classification: H04N

Abstract:
A method of inserting a translucent logo into the transcoded bitstream of a transcoder including an MPEG transcoder having cascaded decoding and encoding sections, the method comprising:generating a translucent logo by calculating &agr; (l(x,y)âˆ’p(x,y)), wherein p(x,y) denotes a pixel value of a video frame, l(x,y) denotes an original pixel value in the translucent logo, and &agr; is the composition parameter and is adjustable between zero and one; adding the translucent logo to the transcoded bitstream of the MPEG transcoder upstream of the transcoder's encoding section; and encoding the bitstream which includes the translucent logo with the encoding section of the transcoder.