Patent ID: 9307256
Filing Date: 2016-04-05
CPC Classification: H04N

Claim Text:
1. An apparatus for processing a video data stream, comprising: a codec for processing a video data stream comprised of a plurality of frames, wherein the codec comprises an encoder, a decoder, or both an encoder and a decoder; the encoder processes a video data stream to generate encoded data and the decoder processes encoded data to reconstruct a video data stream; the encoded data is comprised of a base layer of lower spatial resolution and at least one enhancement layer of higher spatial resolution as compared to the base layer; and the enhancement layer's processing comprises transform domain predictions, wherein predictions of one or more transform coefficients are made from the base layer's information on the transform coefficients in a current frame, and the enhancement layer's motion compensated information from one or more prior frames; wherein the base layer's information comprises bounds on the transform coefficients' values; and wherein the base layer's processing at the encoder comprises down-sampling the current frame of the video data stream in the transform domain by discarding high frequency transform coefficients in the base layer.