Patent ID: 8139642

Claim:
A method for encoding video signals comprising the steps of: subjecting video signals to unbalanced multiple description coding, said unbalanced multiple description coding comprising; coding a video signal in a first high resolution packet and a second low resolution packet, said first high resolution packet representing a first high resolution description and said second low resolution packet representing a second low resolution description; and using a first intra refresh period for said first high resolution description and a second intra refresh period for said second low resolution description being shorter than said first intra refresh period for said first high resolution description, wherein said unbalanced multiple description coding further comprises a packetizer having a single output for aggregating said first high resolution packet and said second low resolution packet into a single packet for transmission; wherein said second low resolution packet is smaller than said first high resolution packet, wherein aggregating comprises aggregating a low resolution packet belonging to a first frame with index n and a high resolution packet belonging to a second frame with index k, said index k being equal to index n minus an offset value, and wherein the offset value is larger than one in order to de-correlate the loss of the said high resolution packet and said low resolution packet.