Method and apparatus for adaptive up-scaling for spatially scalable coding

A method for processing data, the method comprising:

• adaptively selecting between multiple available up-sample filters for up-sampling individual image blocks;
• using the selected up-sample filters to convert associated low-resolution image blocks into up-sampled high-resolution image blocks;
• using the up-sampled high-resolution image blocks to either encode or decode a high-resolution image;
• identifying which up-sample filters are selected for the different image blocks;
• and
• sending the up-sample filter identifiers associated with the different image blocks to a decoder.

A system for processing data, the system comprising:

• an encoder selecting between different combinations of up-sample filters for up-sampling individual low-resolution image blocks when encoding an image sequence;
• and
• a decoder selecting between different combinations of up-sample filters for up-sampling individual low-resolution image blocks when decoding the encoded image sequence;
• wherein the decoder includes multiple different sets of up-sample filters and the encoder identifies which of the different sets of up-sample filters the decoder should use.

An apparatus, comprising:

• a processor configured to adaptively select between multiple available up-sample filters for up-sampling individual image blocks;
• the processor configured to use the selected up-sample filters to convert associated low-resolution image blocks into up-sampled high-resolution image blocks;
• the processor configured to use the up-sampled high-resolution image blocks to encode a high-resolution image;
• the processor configured to identify which up-sample filters are selected for the different image blocks;
• and
• the processor configured to send the up-sample filter identifiers associated with the different image blocks to a decoder.