RE-SAMPLING FILTERS FOR SCALABLE VIDEO CODING

摘要

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.

主权项

1. 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.