Patent ID: 11943461
Assignee: OP SOLUTIONS, LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A decoder configured to:
receive a bit stream including information for determining a scaling constant, a signal indicating that a mode when a reference picture and a current picture have different resolutions is enabled, a current coded picture comprising a first plurality of coded blocks and a second plurality of coded blocks;
when the mode is enabled, decode each of the blocks of the first plurality by:
determine a scaling constant using information in the bitstream,
determine, from a reference picture having a different resolution than the current picture, a scaled prediction block by scaling a prediction block from the reference picture using the scaling constant and by applying a filter determined individually for the prediction block; and
decode each block of the first plurality using its scaled prediction block; and

when the mode is enabled, decode each of the blocks of the second plurality without scaling a prediction block of a reference picture and without applying a resolution changing filter specifically determined for a block of a reference picture.