Patent ID: 8179960
Filing Date: 2012-05-15
Classification: H04N

Abstract:
1. A method for generating an encoded video signal from an original video signal, the original video signal comprising a sequence of video frames, the encoded video signal for use in a subsequent video display of said original video signal, the method comprising the steps of: generating virtual reference data based on a portion of the original video signal, wherein the generated virtual reference data does not represent any portion of any individual frame of the original video signal which is to be displayed in said subsequent video display thereof; encoding, using a processor, said generated virtual reference data and incorporating said encoded virtual reference data into the encoded video signal; incorporating into the encoded video signal an indication that said encoded virtual reference data incorporated therein comprises data which does not represent any portion of any individual frame of the original video signal to be displayed in said subsequent video display thereof; encoding, using a processor, one or more portions of the original video signal which are to be displayed in said subsequent video display thereof, wherein said encoding of said one or more portions of said original video signal which are to be displayed are based on and specifically reference a portion of said encoded virtual reference data; and incorporating said encoded portions of said original video signal which are to be displayed into said encoded video signal.