Re-sampling filters for scalable video coding
AssigneeGeneral Instrument Corporation
InventorsKoohyar Minoo, David M. Baylon
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Abstract
In one embodiment, a method receives a plurality of sample values. The method then determines a filter to determine an up-sampled value for a first layer for a video, wherein the filter has a set of coefficient values of [−1, 3, −8, 60, 13, −4, 1, 0] or [0, 1, −4, 13, 60, −8, 3, −1] assigned to the filter. The up-sampled value is determined by applying the set of coefficient values of [−1, 3, −8, 60, 13, −4, 1, 0] or [0, 1, −4, 13, 60, −8, 3, −1] to the plurality of sample values. The method then outputs the up-sampled value for use in coding a second layer of a higher resolution than the first layer. The up-sampled values may be for the 3/16 and −3/16 phase offsets.
Claims20
A method comprising:
- receiving, by a computing device, a plurality of sample values;
- determining, by the computing device, a filter to determine an up-sampled value for a first layer for a video, wherein the filter has a set of coefficient values of [0, 1, −4, 13, 60, −8, 3, −1] assigned to the filter;
- determining, by the computing device, the up-sampled value by applying the set of coefficient values of [0, 1, −4, 13, 60, −8, 3, −1] to the plurality of sample values;
- and
- outputting, by the computing device, the up-sampled value for use in coding a second layer of a higher resolution than the first layer.
A method comprising:
- receiving, by a computing device, a plurality of sample values;
- determining, by the computing device, a filter to determine an up-sampled value for a first layer for a video, wherein the filter has a set of coefficient values assigned to the filter;
- determining, by the computing device, the up-sampled value by applying the set of coefficient values of to the plurality of sample values;
- outputting, by the computing device, the up-sampled value for use in coding a second layer of a higher resolution than the first layer;
- and
- communicating, by the computing device, information for the set of coefficient values to a decoder, the information allowing the decoder to determine the set of coefficient values assigned for the filter.
A method comprising:
- determining, by the computing device, a filter to determine an up-sampled value for a first layer for a video, wherein the filter has a set of coefficient values of [−1, 3, −8, 60, 13, −4, 1, 0] assigned to the filter;
- determining, by the computing device, the up-sampled value by applying the set of coefficient values of [−1, 3, −8, 60, 13, −4, 1, 0] to the plurality of sample values;
- and
- outputting, by the computing device, the up-sampled value for use in coding a second layer of a higher resolution than the first layer.
Dependencies are inferred from the claim text.